38 Interview Questions and Answers of ASP.NET
1. Describe the role of inetinfo.exe, aspnet_isapi.dll and aspnet_wp.exe in the page loading process.
inetinfo.exe is theMicrosoft IIS server running, handling ASP.NET requests among other things.When an ASP.NET request is received (usually a file with .aspx extension),the ISAPI filter aspnet_isapi.dll takes care of it by passing the request to the actual worker process aspnet_wp.exe.
2. What’s the difference between Response.Write() and Response.Output.Write()?
The latter one allows you to write formatted output.
3. What methods are fired during the page load?
Init() – when the page is instantiated,
Load() – when the page is loaded into server memory,
PreRender() – the brief moment before the page is displayed to the user as HTML,
Unload() – when page finishes loading.
4. Where does the Web page belong in the .NET Framework class hierarchy?
System.Web.UI.Page
5. Where do you store the information about the user’s locale?
System.Web.UI.Page.Culture
6. What’s the difference between Codebehind=”MyCode.aspx.cs” and Src=”MyCode.aspx.cs”?
CodeBehind is relevant to Visual Studio.NET only.
7. What’s a bubbled event?
When you have a complex control, like DataGrid, writing an event processing routine for each object (cell, button, row, etc.) is quite tedious. The controls can bubble up their eventhandlers, allowing the main DataGrid event handler to take care of its constituents.
8. Suppose you want a certain ASP.NET function executed on MouseOver overa certain button. Where do you add an event handler?
It’s the Attributes property, the Add function inside that property. So btnSubmit.Attributes.Add(“onMouseOver”,”someClientCode();”)
9. What data type does the RangeValidator control support?
Integer,String and Date.
10. Explain the differences between Server-side and Client-side code?
Server-side code runs on the server. Client-side code runs in the clients’ browser.
11. What type of code (server or client) is found in a Code-Behind class?
Server-side code.
12. Should validation (did the user enter a real date) occur server-side or client-side? Why?
Client-side. This reduces an additional request to the server to validate the users input.
13. What does the “EnableViewState” property do? Why would I want it on or off?
It enables the viewstate on the page. It allows the page to save the users input on a form.
14. What is the difference between Server.Transfer and Response.Redirect? Why would I choose one over the other?
Server.Transfer is used to post a form to another page. Response.Redirect is used to redirect the user to another page or site.
15. Can you explain the difference between an ADO.NET Dataset and an ADO Recordset?
· A DataSet can represent an entire relational database in memory, complete with tables, relations, and views.
· A DataSet is designed to work without any continuing connection to the original data source.
· Data in a DataSet is bulk-loaded, rather than being loaded on demand.
· There’s no concept of cursor types in a DataSet.
· DataSets have no current record pointer You can use For Each loops to move through the data.
· You can store many edits in a DataSet, and write them to the original data source in a single operation.
· Though the DataSet is universal, other objects in ADO.NET come in different versions for different data sources.
16. Can you give an example of what might be best suited to place in the Application_Start and Session_Start subroutines?
This is where you can set the specific variables for the Application and Session objects.
17. If I’m developing an application that must accommodate multiple security levels though secure login and my ASP.NET web application is spanned across three web-servers (using round-robin load balancing) what would be the best approach to maintain login-in state for the users?
Maintain the login state security through a database.
18. Can you explain what inheritance is and an example of when you might use it?
When you want to inherit (use the functionality of) another class. Base Class Employee. A Manager class could be derived from the Employee base class.
19. Whats an assembly?
Assemblies are the building blocks of the .NET framework. Overview of assemblies from MSDN
20. Describe the difference between inline and code behind.
Inline code written along side the html in a page. Code-behind is code written in a separate file and referenced by the .aspx page.
21. Explain what a diffgram is, and a good use for one?
The DiffGram is one of the two XML formats that you can use to render DataSet object contents to XML. For reading database data to an XML file to be sent to a Web Service.
22. Whats MSIL, and why should my developers need an appreciation of it if at all?
MSIL is the Microsoft Intermediate Language. All .NET compatible languages will get converted to MSIL.
23. Which method do you invoke on the DataAdapter control to load your generated dataset with data?
The .Fill() method
24. Can you edit data in the Repeater control?
No, it just reads the information from its data source
25. Which template must you provide, in order to display data in a Repeater control?
ItemTemplate
26. How can you provide an alternating color scheme in a Repeater control?
Use the AlternatingItemTemplate
27. What property must you set, and what method must you call in your code, in order to bind the data from some data source to the Repeater control?
You must set the DataSource property and call the DataBind method.
28. What base class do all Web Forms inherit from?
The Page class.
29. Name two properties common in every validation control?
ControlToValidate property and Text property.
30. What tags do you need to add within the asp:datagrid tags to bind columns manually?
Set AutoGenerateColumns Property to false on the datagrid tag
31. What tag do you use to add a hyperlink column to the DataGrid?
<asp:HyperLinkColumn>
32. What is the transport protocol you use to call a Web service?
SOAP is the preferred protocol.
33. True or False: A Web service can only be written in .NET?
False
34. What does WSDL stand for?
(Web Services Description Language)
35. Which property on a Combo Box do you set with a column name, prior to setting the DataSource, to display data in the combo box?
DataTextField property
36. Which control would you use if you needed to make sure the values in two different controls matched?
CompareValidator Control
37. True or False: To test a Web service you must create a windows application or Web application to consume this service?
False, the webservice comes with a test page and it provides HTTP-GET method to test.
38. How many classes can a single .NET DLL contain?
It can contain many classes.
Series 2
1.Explain the .NET architecture.
2.How many languages .NET is supporting now?
- When .NET was introduced it came with several languages. VB.NET, C#, COBOL and Perl, etc. The site DotNetLanguages.Net says 44 languages are supported.
3.How is .NET able to support multiple languages?
- a language should comply with the Common Language Runtime standard to become a .NET language. In .NET, code is compiled to Microsoft Intermediate Language (MSIL for short). This is called as Managed Code. This Managed code is run in .NET environment. So after compilation to this IL the language is not a barrier. A code can call or use a function written in another language.
4.How ASP .NET different from ASP?
- Scripting is separated from the HTML, Code is compiled as a DLL, these DLLs can be executed on the server.
5.Resource Files: How to use the resource files, how to know which language to use?
6.What is smart navigation?
- The cursor position is maintained when the page gets refreshed due to the server side validation and the page gets refreshed.
7.What is view state?
- The web is stateless. But in ASP.NET, the state of a page is maintained in the in the page itself automatically. How? The values are encrypted and saved in hidden controls. this is done automatically by the ASP.NET. This can be switched off / on for a single control
8.Explain the life cycle of an ASP .NET page.9.How do you validate the controls in an ASP .NET page?
- Using special validation controls that are meant for this. We have Range Validator, Email Validator.
10.Can the validation be done in the server side? Or this can be done only in the Client side?
- Client side is done by default. Server side validation is also possible. We can switch off the client side and server side can be done.
11.How to manage pagination in a page?
- Using pagination option in DataGrid control. We have to set the number of records for a page, then it takes care of pagination by itself.
12.What is ADO .NET and what is difference between ADO and ADO.NET?
- ADO.NET is stateless mechanism. I can treat the ADO.Net as a separate in-memory database where in I can use relationships between the tables and select insert and updates to the database. I can update the actual database as a batch.
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BEL PAPER ON 19th SEPTEMBER 2008
Hello friends, i’m Vikash Kimothi from College of Technology, PANTNAGAR, BEL visited my college on 19th-20th sept’08 for recruitment. Their selection procedure consist of 2 stages —– written(technical) and interview. THey have differnt written paper for electronics, computer & mechanical engg cadidates.I’m from ECE and the wriitten test consists of general questions most of them from communication & digital logic families. The cut-off for the written examination was 30%. After clearing the written i face the interview. Interview panel comprise of 5 members from electronics, computer, mechanical & HRD field. MOst of the question asked in the interview were simple like some electronics principles and their applications.
They ask mainly questions from communication–analog & digital and also ask for the principle/working of some equipment like CFL, electronic fan regulators, DTH service/satellite tv, mobile phone, IP tv etc…
Here i have given some of the questions of the written paper(ECE)… The paper consist of two sections —-40 objective & 10 true false questions. The cut-off as told by them 30% but they may have increase this limit. in my college only 8 out of 21 cleared the paper(for ECE branch)
Part I—Objective questions (40 with 1.5 marks each) with 50% -ve marking
1. Numerical problem based on modulation index fc, fm………. (formula based direct queston).
2.Poles & zeroes are at .01,1,20,100…… find phase margin/angle at f=50Hz. ans -90(By drawing bode plot)
3.In n-type enhancement mode MOSFET drain current———– options are- increase/decrease with inc/dec in drain/gate voltage. ans(d)
4. Gain of an directional antenna 6db P=1mw find transmitted power………(use Ptr= G * P.)
5.Multiplication of two nos 10101010 & 10010011 in 2’s complement form..
6.A ckt is given suppplied with 15v with a series of resistance of 1k and a parallel combination of 12V zener diode and 2k resistance. FInd current through 2k resistance. ans: 6mA
7.A MP has 16 line data bus & 12 line addr bus find memory range……….Ans..4K(4*1024bytes)
8.Divide by 12 counter require minimum ….. no of flip flops Ans. 4
9.Storage time in p-n junction.
10.Succesive approx. use in …. Ans ADC(analog to digital)
11.Pre-emphasis require in ……… low freq/high freq signal.
12.Handshake in MP ……….. Ans to communicate with slower peripherals.
13. Binary equivalent of 0.0625 Ans. 0.0001
14.Which code is self complement of itself
15.Excess three code of an given binary no.
16.When we add 6 in BCD operations……. Ans. if result exceed valid BCD nos.
17.Shottky diode has better switching capability because it switch between…….
18.Figure of Merit is same as……
19.Swithcing in diode happens when….
20.During forward bias majority charge conc. in depletion layers inc/decrease…..
21.Channel capacity depend on……. Ans. Usable frequency or bandwidth
22.A 2kHz signal is passed through an Low pass filter having cut-off freq 800Hz o/p will be
23. Carrier amplitude 1v, peak to peak message signal 3mv find modulation index.
24.A 12V signal is quantized into two V/14 & 6 equal V/7 determine quantization error.
Part II True & false…...(10 1 mark each) with 50% -ve marking
1.Power dissipation in ECL is minimum………. False
2.Fourier Transform of a symmetric conjugate function is always real …. True
3.Divide by 12 counter requires a minimum of 4 flip flops…….True
4.Boron can be use as impurity to analyse base of a npn transistor…….True
ALL THE BEST…..
BEL PAPER ON-13th MAY
Hi friends, i had given BEL paper on may-13,2007
in which 150 ques u’ve to do…out of which 30 were of apti &120 technicalapti 9 ( tough as compared to ISRO)
question from analog electronics, digital electronics, network, F & W, signal , Control etc……..
1) in analog question based on zener diode
2) coupling capacitors and bypass capacitors affect
3) 1,8,27,64,125, ……….,…….
which among the following will not come in the series
a.1000, b.729 c.259
4) which of the following game uses bulley
a.football b.cricket c.goalf.. d.hockey
5) a zener diode works on the principle of
6)under the high electric field,in a semiconductor with increasing electric field
7)in an 8085,microprocessor system with memory mapped I/O
8)built-in potential in a p-n jn.-
9)the breakdown voltage of a transitor with its base open is BV(ceo) and that with emitter open BV(cbo) then
10) ques based on half adder
11) based on flip flop
12) block diagram reduction
13) to find max overshoot (2 ques based on it)
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Technical:
1. what is used for heat dissipation in ICs
2. for an amplifier, given IC(dc) and IC(ac)(p) for a 1k load calculate avg dc
power dissipated.
3. given hfe calculate hfc.
4. given ICBO,ICO and α calc ICEO.
5. for common collector configuration o/p current is IE/IC/IB/..
6. which configuration amongst CC/CE/CB gives no current gain.
7. SiC is which group compound
8. pipelining is implemented in RISC/CISC/…
9. given transmitted power and modulation % for AM calc avg sideband power.
10. spectrum of sinewave contains how many components.
11. which of the following signals supports snoopy cache protocol arbitration
signal/cache support signal/…
12. for an n-bit multiplicand and multiplier the booth,s algorithm generates
how many bit product.
13. which window achieves smaller sidelobe width at the cost of greater
mainlobe twidth hamming/hanning/Blackman/Kaiser
14. a highpass RC filter behaves as
pure differentiator when ωτ<<1/ωτ>>1/…
15. what is the lowest atomic concentration that can be measured using SIMS
boron concentration method.
16. what type of bond is present in Si and Ge.
17. dynamic characteristics of capacitive transducers are similar when used as
HPF/LPF/…
18. what is used as switching element in SMPS at 20-100 kHz
UJT/thyristor/triac/MOSFET.
19. how can CMRR be increased-by increasing source resistance/emitter
resistance/collector resistance/..
20. avg value of a HWR current signal of peak value Im.
21. given 3 dB bandwidth and resonance freq of an RLC ckt calc its Q.
22. how many tokens are present in C- 0/1/2/3.
23. for a stretch of code as int a;a=5/2; what will be the value stored in a.
24. what does the statement volatile int a mean in C.
25. ASCII code of Z.
26. for a stretch of code as char a =252;a=a+5; what is the value stored in a.
27. one problem on binary to hexadecimal conversion.
28. 212 address lines address how much memory.
29. 220 address lines address how much memory 2G/2M/…
30. another name for single transfer mode in direct transfer.
31. what signal used for DMA in 8085.
32. sequence of instruction cycles for PUSH B.
33. what are the various steps in one machine cycle of 8085.
34. response time of PIN diode.
35. range of current signal in RS232 serial transfer mode.
36. when an electron is injected into a circular conductor surrounded by an
insulator what will happen- it will distribute uniformly/move to the surface/…
37. for a solenoid with end A connected to +ve terminal and end B to –ve
terminal what will happen end A will be north pole/end B will be north
pole/both will alternately be north poles/it won’t behave as a magnet.
38. what is the value stored in an un-initialized static variable in C.
39. what transistor is used in VLSI.
40. number of gates used in GSI.
41 supply voltage in HTL logic.
42. given a K-map,obtain a simplified SOP form.
43. 2’s complement of –ve 1011.
44. 2’s complement of another binary number.
45. why are synchronous ckts difficult to design –they have fast response/they
have stability problem/…
46. given 4 equations identify which conforms to Boolean algebra laws.
47. when lower byte is used to address MSW what is it called big endian/little
endian/…
48. a 6 V peak sine wave is given to one of the inverters
of a 7414. after what value will the o/p change from high to low.
49. given two sequences,calc their product.
50. given two sequences find their convolution.
51. find the ROC of a right sided exponential sequence.
52. the property x(t)*h(t)=h(t)*x(t) is called commutative/associative/distributive/…
53. given the sequence y(n)=5cos[4πn/31 + π/5] find the fundamental period of
it.
54. in what type of control is hysteresis present -P/I/D/on-off.
55. given mmf and reluctance, calc flux.
56. max no of peripherals that can be connected to 8085 through a PIC.
57. why is class B modulation preferred to class C modulation.
58. given a telemetry channel in which a 4 kHz bandwidth signal is carried by
two carriers of 36kHz and 48 kHz calc the freq bands occupied.
59. LVDT is a electrostatic/electrical/electromagnetic/electromechanical
device.
60. order of resistance of shunt coil used in Q-meters.
61. what are the minority carriers in an n-type material.
62. the band formed when energy associates combine with valence electrons is…
63. depletion region width can be increased by…
64. minority carrier concentration depends on applied fwd voltae/applied
reverse voltage/doping level/…
65. numerical on calc of drift velocity of an electron.
66. maxm power consumption occurs in electrostatic/hotwire/induction/moving
iron instrument.
67. for a collector modulated AM ckt given values of L & C of the tuning
ckt and the message signal freq calculate the freq spectrum of the AM wave.
68. upon which of the following plots can the Nyquist plot be mapped-bode/root
locus/polar/inverse polar.
69. which of the following compensators increases the damping factor-phase
lead/phase lag/phase lag-lead/phase lead-lag.
70. for regenerative feedback having fwd path gain G(s) and f/b path gain H(s)
calc the transfer function.
71. which is true about the wagner earthing device-it reduces waveform
errors/introduces high accuracy in measurement/does not affect AC
bridges/changes the freq of measurement.
72. a 2nd order LTI system acts as which of the following-HPF/LPF/BPF/..
73. which of the following adds linearly-Ls in series/Cs in series/Rs in
parallel/..
74. relation between mobility and diffusion constant.
75. at 308K value of Eg for Si.
76. what indicates the efficiency of transport
of electrons injected from the emitter into the collector by the base-base
transport factor/base injection factor/…
77. error detection can be achieved by potentiometer/amplidyne/armature
controlled/field controlled AC motor.
78. which of the following can act as an input to an AC
bridge-RPS/oscillator/amplifier/…
79. if some i/p voltages are to be added without changing their values in an
op-amp having f/b resistance as 1k, the i/p resistances should be..
80. given ρ,l and d for a copper wire,calc its resistance.
81. if the length of a wire is increased what happens to its
resistance-increases linearly/increases exponentially/…
82. for a current carrying coil if the current is doubled then the field
strength is doubled/halved/increased 4 times/..
83. some value of L and C is connected to a 150V,60Hz source. What value of
inductor will make the same current lag behind the same voltage with the same
capacitor.
84. loss due to dielectric distortion ina capacitor is called…
85. for an ideal MOS capacitor if the gate voltage is less than 0 it behaves in
what mode..
86. given a ckt with a parallel combination of a 1 F capacitor and a (1Ω
resistor and 0.5H inductor in series) excited by a source of value cos t, calc
the current given by the source.
87. anti-side tone ckts are used in telephones to introduce/eliminate/attenuate
sidebands.
88. in a radio receiver noise occurs in the mixer/oscillator/amplifier/…
stages.
89. for a 4k RAM with starting address 4000H the last address will be…
90. RST 5.5 is vectored to which address
91. among RST 5.5/6.5/7.5 which is serviced last.
92. a capacitor of some value is charged thru a resistor of some value and a 6
V battery. Calc the time taken by the capacitor to charge to its maxm value.
93. given an eqn for FM, identify the carrier freq.
94. how many invalid states are present in a mod-6 counter.
95. when ckts are connected in tandem which method is easier to analyze them-h
parameters/OC impedance parameters/transmission parameters/SC admittance
parameters.
96. from a 75 MHz counter what is the value of the smallest time period of the
signal that can be obtained.
97. Cgd for a FET in the small signal low freq model is in the range of…
98. kirchoff’s law is not applicable to which of the following
ckts-nonlinear/dual/linear/distributed parameter.
99. why is a diac preferred to turn on a triac-for slower turn-on/faster
turn-off/better stability/…
100. resistance of the epitaxial layer depends on…
101. which of these is an active transducer-photoconductive/photovoltaic
cell/selsyn/…
102. DC blocking in a transistor is achieved by…..
103. what current is drawn by a 10 W lamp connected to a 220 V,60 Hz source.
104. noise margin of CMOS is 0/infinite/high/medium…
105. schotky barriers are frequently used as…..
106. octave freq range is represented by….
107. i/p impedance of a digital
instrument is of the order of….
108. what is the time taken to multiply a 14 bit no. with a 1 MHz clock.
109. parity error checking identifies error occurring in 1 bit/2/3/4 bits only.
110. when RESET IN(active low) is affected in an 8085 what happens.
111. how many times will a for loop going from 20 to 100 in steps of 10 be
executed.
112. if the control statement is made outside the body of a function in C what
is it called.
113. which of the following can be a variable in C-8ab/total
salary/gross_salary_2008/net__income__2008.
114. if the units of both current and voltage are increased 20 times of their
present value how will the units of capacitance change.
115. what type of non-linearity is present in a servomotor-backlash/coulomb
friction/dead space/…
116. given the i/p signals to a differential amplifier calc its o/p voltage.
Aptitude:
There were 36 questions in this
section, about 12 questions each in verbal,quant and GK. some of the GK
questions were:
Author of “the great Indian story”.
Author of ”making globalization
work”.
Captain of the 2006 world cup
winning italian football team.
Full form of the acronym CITES.
Period of the fourth five-year
plan.
In which year did the turks conquer
Constantinople .
Some of the questions asked are given below for your
reference.
1. In which place there are No snakes?
Ireland and
also Hawai island.
2.In a class there are 35 students in which its average is 35kg, if we add ten
more students in that class their average becomes 39kg.
What’s the average of new ten students? 53kg.
3. She swam ___ Cauvery river ___ India and Srilanka.
Across and between
4. How much months will be allowed for a women employee to take leave on
Maternity period? 26 weeks.
5. If “A” sells an article to “B” in the profit of 20% and “B” sells the
same article with loss of 10% to “C” and gets rs.216. What is the cost of that
article? 200
6. 8900 is divided to the share profit to 3 persons X, Y and Z with less rs.30,
rs.20, rs.50 respectively. If the ratio is divided to 2:3:5 respectively. How
much is the share for Y?
7.Two alloys Copper and steel is in the ratio of 5:7 and 4:5 respectively. If
it melts to ________________________ in the equal ratio. Percentage?
8.Second highest Muslim population in which country?
|
Country |
Population |
Percentage of Muslims |
Muslim Population |
|
Indonesia |
231,328,092 |
88.0% |
203,568,721 |
|
Pakistan |
147,663,429 |
97.0% |
143,233,526 |
|
India |
1,045,845,226 |
12.0% |
125,501,427 |
|
Bangladesh |
133,376,684 |
83.0% |
110,702,648 |
|
Turkey |
67,308,928 |
99.8% |
67,174,310 |
|
Egypt |
70,712,345 |
94.0% |
66,469,604 |
|
Iran |
66,622,704 |
99.0% |
65,956,477 |
|
Nigeria |
129,934,911 |
50.0% |
64,967,456 |
|
Ethiopia |
67,673,031 |
47.5% |
32,144,690 |
|
Morocco |
31,167,783 |
98.7% |
30,762,602 |
9.
Praveen runs 125m or 25 seconds lead in 1000m race. Though he lost with Naveen
in just a distance. How much time Praveen takes to cover the distance?
200seconds
HAL PAPER ON 3rd NOVEMBER AT NEW DELHI
Hi good morning to all of u. I am from ELECTRICAL I am ag. on 3rd august i
attended the HAL exam. thats very very easy.Just they are concentrating on only
3 to 4 subjects. If u are red those subjects then u will be luckiest fellow.
but what i know from the exam is they are mainly concentrating on particularly
one subject i.e. DC Machines.
On 3rd they asked three subjects i.e. DC Mchines, Networks, Measurements and
Instrumentaion.
Total Q paper contains 160 bits. out of 160
20-bits English - average
20-bits Aptitude and G.K – average
40-50 bits DC Machines – easy
20-30 bits Networks
20-30 bits M&I
5-10 bits are from trnasformer and remainning from 5 from PS 10 from
remaining Machine.
All these bits are easy but these some calculations. so please friends
whatever u know that only first u attempt in that u will get more marks.
For us this is ONLINE.
In my point of view exam was easy. I had written very well also.
now this is ur turn to prepare.
ALL THE BEST FRIENDS
Hi every body…today i gave HAL written test in hyderbad in ELECTRONICS
branch there are 145 technical questions and 15 general studies the very very
very very very important thing for those who apearing for HAL exam in
electronics is they are given most of the questions from DC MECHINES nearly 50
quetions from that subject today i was shocked to see ques’s from that
subject,so pls concentrate more on dc mechines.
mostly they are given questions from these subjects
1.dc mechines(about 50)
2.Networks(20)
3.instruments(5)
4.digital electronics(30)
5.EDC & analog electronics (8)
6.control systems(2)
7.antenas,satillite commincation(5)
8.communications(10)
the paper is very hard i dont expect they will give question patern like this
so plz concentrate more on mechines
some of questions i feel easy and i remember are
1.what is weight of 5rupee coin??
2.who is below never a cheif justice of india ?
3.what is largest ISRO company in india?
4.who is player took 10 wikts in one test innings ?
(in the list anil kumble not given)
techinical que’s:
1.binary number for 1001.1101?
2.decimal number for 19?
3.excess-3 code for 29?
4.speed-torque characterictics of dc motor?
(some figures given)
5.quantization noise occurs in??(repeated question 2 times given)
6.schering brige method used for measuring of??
7.prom based on networks are very very easy every body can ans…like calculate
curent in one resistor if 10 resistors are connected in parall like that
8.if speed doubles,distance increases what is the torque in dc motor?
9.what is the value of A’+1 ?
10.what is instrument used in MIC instrument?
a)galvonometer b)ammeter like that….
11.question about dammping concept in PMMC
12.what is PAL full form??
13.what is the use for sweeping resistor in transistor??
14.quetion based on bootstraping concept.
15.rms current in half wave rectifier?
16.what is form factor?(some ratios are given)
17.prob on tree branches concept
18.range of radio telemetry…some frequencies given
so these are questins which are very very easy and i remembered
dont feel happy to see these questions in every exam these type easy questins
they will give but
who gave corect answers to difficult questions he only will select in written
test.so do hard work better to learn concept clearly now a days this galgotia
book also not useful for p.s.u’s
prepare test books more…..
HAL PAPER ON MAY 20th AT HYDERABAD
1 synchro tc and rx is
a ) two phase ac
b) three phase ac
c) dc only
d) none
2 in 4 bit number one bit indicates
sign of the number then the locations are from
a) -8 to 8
b) -7 to 7
c)
-16 to 16
d)
None
3 G(s) = 10/S(S+2) then the
natural frequency of this transfer function is
a)
3.146
b) 4
c) 5
d) 2
4 In TV video amplifier is
used for =?
5) one block contain one of
the R L C element then the frequency of that one is 1 MHZ when the capacitor C=
0.1 uf is added to that block then the frequency becomes 2 MHZ then what is the
element inside the block at first time
a) resistor
b) inductor
c) capacitor with 0.5 uf
d) none of these
ans : b
6) For unit step input they gave
the input G(S)= – — – - -,h(s)= ——-then he ask the steady state error for
that transfer fn
7)Avalanche photo diode is used
when compared to PIN diode bcz
a) larger band
width C)——-
b) high
sensitivity d) ——–
8) some non zero DC voltage
is to RC low pass circuit then the DC voltage in
the output contains
a)
Same as in input
b)
Higher than input
c)
Zero
d)
Slightly increases
9) ifthe output of the gate is always high then the gates applied to this logic
are
a)
NAND and EXOR
b)
Nand and NOR
c)
AND and XNOR
d) OR
and XOR
Ans ) a
10) For the voltage series feedback
he gave input resistance and A and beta value then find the output
resistance ?
11)Signal to noise ratio =15 db
Bandwidth =4KHZ then the channel capacity -?
Ans
:
C= B Log (1+ s/n) =16 log 2
12 ) Four messages are given like this 0.5,0.25,0.125,0.125 ,entrophy
value is =?
Ans:
Entrophy= Avg of all informations
13) Thermal Run away is not
possible in FET bcz the flow of
a)
minority careers c) _____
b)
Transconductance d) none
Ans : FET is unipolar so there are
no minority careers .Thermal run away occurs only minority careers
14)Gm= 10 ,Rd =20k,Rl =10 find the
amplification factor -=?
Ans = U= Gm
Rd
15) Two ideal voltage
sourd=ces resistors are connected in series ,power of that one is 4W ,If one of
the sorce is active other resistors are shorted .Calculate the power when both
are active +/
a)
0W,8W
b)
8W,6W
c)
4W,0W
d)
None
16) A TV braod cast tx
uses which type of antenna =?
a) parabolic antenna b)=—
c)—– d) —–
ans : a
17) Electric field and
equi potential lines are
a) parallel to each other
b) In Quadrature
ans : b
18 ) L1= —– , L2 = —- k= _—- then mutual inductance of the coil is
=?
Ans : M=ksquare
root of L!and L2
19 ) one cube some is there to find
out the how many number of cubes are having single side ?
20)Two qs in verbal are
—– two statements are given for that the relation btwn those two
Totally there are 160 qs out of
that 100 qs from technical and 60 qs from aptitudeand verbal
hindustan copper limited (hcl)
THIS BLOG IS UNDER CONSTRUCTION SO PLEASE JUST LEAVE BELOW SO THAT WE CAN
INVITE YOU WHEN WE OFFICIALLY RELEASE THIS BLOG hcl, hindustan copper limited, paper, placement, question, sarkari naukri
2 commentsThe 2008 pattern for hcl was 150 questions in 150 minutes
each quesition carried 4 mark for right answer and 1marks negative for wrong
75 questions were aptitude and english and reasoning ones,
these were simple aptitude based two questions from data interpretation with five parts each.
one english unseen passage,synonyms,antonyms etc
Technical paper for branches (electronics)
questions form control systems,analog integrated circuti ,basic electronics ,switching theory ,boolen ,television , antenna,microwaves etc
primary colors in tv like blue green yellow
which antenna is used for tv-yagi-uda.
fanout and fan in.
mos,ttl,ecl which is better.
odd one out like
bjt,ujt,mosfet,igfet ans bjt
MTNL (JTO/JAOS) EXAM —-HELD ON 18/09/2005.
5 123456:234556 345678:???
there were 170 q,s ,out of which 100 technical and 70 counts for
aptitude.
time limit was 2 hours. 30 minutes were previusly given for filing the
entry.exam stared around 10 o clock.
*there were no g.k question
note—–>>>
*approx 10 question were also in sail 2005 examination(management
trainees)
$——-> repeated
*few q which i remembered,
i have written them according to the nearest topic
*technical was having almost thoeritical question nearly.
********technical section************
1.what is a aquadag.
2.about the quiscent condition
3.cassegrain feedis used with parabolic reflector to
allow the feed convenient position. $
4. configuration of cascade.
ce cc,cbce, none
5.resistors is measured in a) ohms
b) watts. c) both
6.if diameter of radar is >> 4 times $
how much range is increased ans)4
7.n type have which type of impurity
8.semiconductor strain gauge over the normal strain gauge is around.$
9.why slicon is prefeered
10. what is w2/w1=4 relationship is called $
11.which one is best outof(near about)
nyqiust,bode, routhz
12.wein bridge frequecy conditions
13.The ,h, parameter equivalent circuit of a junction transistor is
valid for -
a). High frequency, large signal operation
b.) High frequency, small signal operation
c.) Low frequency, small signal operation
d). Low frequency, large signal operation
14. comparater is used for?
15. astable and bistable uses
16. to increase input z u will prefer
a). Current series feedback
b). Current shunt feedback
c). Voltage series feedback
d). Voltage shunt feedback
17.. Enhancement type P channel MOSFET the gate voltage is
+,-,+ &-
18 which gate gives 0 when i/p is 1
19. decimal have radix ?
20 what is binary for 10
21 one value was given SN72 like that ,u have to tell
which device it means.
22. what does the sync mean in tv tramnsmission. $
23. question on transformer coupling(i didnt remember)
24. where the double tunning is used in radio receivers.
25. sequential circuit dependence on input and output.$
26.question on power receiveed by the receiver in tramsmmission
27.the probability density function of envelope of narrow
band noise is gaussian………………………….
28. what isthe output of given IC .
29.if quantization level is incresed from 8—>9 then what is the
effect
30. a figure was given and we have identify thec circuit.
31.in closed loop if u are having m=100 and negative feedback
is .04,what is gain
32.k maps was given u have to give the right pairings.
33.a question on bandwidth
34.fourier series coprises of
sine,cosine,both
35.stalites works in which frequency $
vhf,uhf,both
36.by which u can prepare a binary counter. $
d,rs,jk,latch
37.q based on use of schotky diode
38. q based on the use of varactor diode.
39.q based on allignment in paramagnetic materials.
40.which equipment uses minimum power.
41. it both input of nand gate is high,give the o/p.
42.how many bits are required to reepresent 35 in binary.
43.what is CMRR.
44.if current in zener is increased then what happens.(near about).
45.for,thermistor if temperature is increased then then temperature
coefficent
will?
46.relation between B(beta) and Ic in bjt
47.the resistance of loudspeaker is nearly
ohms,k ohms,m ohms,
48.early state in bjt is due i/p applies,
on time,off time,….
*****aptitude section***********8
aptitiude q
antonymns of
1. debonair
2.bafeful
3.exasperate.
4.dainty
5.epolsive
6.a very simple passage followed by 5n scoring q,s
7.5 question to pick the wrong part in sentences
maths part
1.work… time taken by 4 men to do work is 98.if 3 more
person are involved they the will finsh the work of 298 hrs
in how many more days
2. dicount offered by 3 shopownwer
15 and 10
20 and 10
36
which is the most discounted
3.15^3-14^3/15^2+210+14^2 solve it
4. (312)^.5 * (201)^.5 solve it
5.radius of 2 circle and revolution of one was given,find the other
6. 7 know french ,8 know german ,3 know none ,find how many know both.
7. 80 %failed in maths, 70 %in english ,10 % failed in both,total
passed
no is 144.find total strength.? $
8.if watch is always makes error of 4 second (+)/hours,what will be
time on 22 day 8 am when it was last corrested on 21 day 1 pm
9 q based on day of birth ?
analytical
1. cube face q(same of any two side is 7) $
2. relationships based simple q .(8 in no in total)
3. dog:caninne governor: ??? $
4. 0,6,24,36,120,312(approx likethat) what should not be there $
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