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Old July 26th, 2012, 10:42 AM
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Default ISRO Interview Preparation

After some days my interview is conducted in the Indian Space Research Organization and I want to be well prepared for my interview so please can you give me the previous year question of the interview?
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Old July 26th, 2012, 06:04 PM
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Join Date: May 2011
Location: Delhi
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Default Re: ISRO Interview Preparation

You going to faced Indian space research organization interview, so here I am providing you some previous questions that may be help you you can prepared following questions that is given below.

How to shift a sine wave up or down?
Draw the circuit if demodulator
Different kinds of modulation
What is the output of not gate for sine wave input?
What is modulation?
Different kinds of modulation
Why we use vestigial side band (VSB-C3F) transmission for picture?
BPFSK is more efficient than BFSK in presence of noise. Why?
What are different types of antennas ?
What is Lenz law?
What is a multiplexer?
What is difference between Piconet and Scatternet ?
Why is Zener Diode always used in Reverse Bias condition ?
What is the basic difference between Latches and Flip flops?
What is sampling theorem?
What is latest satellite from ISOR?
Questions on different coding techniques?
What is Race-around problem? How can you rectify it?
What is meant by D-FF?
What is RS in RS-232?
On what principle do Transformers work?
Questions on signal processing techniques?
How many satellites comprise the GPS and expand it?
What is impulse response?
When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?
What is Moore's Law?
What is Yagi-Uda antenna ?
What is CMRR? Explain briefly.
What is EDFA?
Which semiconductor device is used as a voltage regulator and why?
Which range of signals are used for terrestrial transmission?
What is meant by pre-emphasis and de-emphasis?
How can you convert a JK Flip-flop to a D Flip-flop?
What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
How can you convert an SR Flip-flop to a JK Flip-flop?
What is VOIP?
What do you mean by ASCII, EBCDIC?
What is the need for modulation?
What is MIMO?
What do you mean by half-duplex and full-duplex communication? Explain briefly.
What are the different types of filters?
What is FPGA ?
Which type of modulation is used in TV transmission?
What do you mean by an ideal voltage source?
For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?
What is the need of filtering ideal response of filters and actual response of filters?
Difference between FM and AM, which is preferred & its advantages.
What is difference between Microprocessor and Microcontroller?
What is ZigBee and its specifications?
Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.
What is Transmission Frequency of Bluetooth, Wi-Fi and Wi-MAX?
What do you mean by zener breakdown and avalanche breakdown?

Good luck.
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Old December 14th, 2014, 11:54 AM
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Join Date: Nov 2011
Posts: 31,702
Default Re: ISRO Interview Preparation

Ok fine, for your preparation here I am providing you some general questions asked in the Interview of ISRO.

ISRO Interview questions

why capictor in micro or in nano why cannot it in kilo or megha?
in a sn SR latch made by using cross coupling of two nand gates, if both S andR inputs set o then it will result
Can i know what will be the cut off criteria for go to final isro interview??
where are the famous elephanta caves?
What is Vacuum? If pressure is less than that of atmospheric, can we call it vacuum? If so some places have less atmospheric pressures, can we call people living there are living in vacuum?
BEAT is written as GIDV; SOUP may written as :
ripple factor of half bridge rectifier???
formula for figure of merit
what is the natural resistance of the earth? and how it effected by rain r snow? wat is the natural resistance of wet soil? define natural resistance?
why we use 25 kv in railway .not 11kv, or 33 kv
Why grounding is generally done in supply end?
how the Adams bridge was formed?
example for navigation satellite?
different types of satellite?
how to take 2 pages print in to one page?
in earth 1degree equals how many kilo meters?
define cartography?
what is office automation?
abbrivation for ROA in oracle?
difference between typewriter and computer?
what is CAPITA in accounts?
how to calculate percentage impedance
why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain
Why annealing is done on transformer core manufacturing process?
How to select the cable size, what is the parameters use ang what is the formulas use for this cable size calculations. please tell me.
if the length of a pipe doubled what will be the effect on Pressure in line?
what is zeroth law ?
what master plc do?
why should we place 9KV lightning arrestors in 11KV substation ?
How to calculate % Impedence?
what is meant by dielectirc medium? what is the dielectirc value of air and water???
what motivates you to do a good job
If u have to give support in 1 km long bridge,where u will give it & how many?
why we have to know the specific frequency of any equipment? does anybody know about specific frequency ?
what is DAR test?
what is the value of prandtl no. for air?
What will happen if head of a selected pump is not utilized in a closed loop water circuit? Flow will increase or decrease or remain same?
why 4 core cables is used in place of 3.5 core cables for UPS system
What is the differences between char and varchar in Oracle/SQL
What is the Importance of Relational DBMS? Why it is more preferred than Network and Hierarchical Models?
To connect a computer in your home to Internet ? What are the networking components needed?What type of modems are needed for connection?
What is TRAP ? What are Maskable and Non-maskable Interrupts?What is Masking?What is Vectored Interrupt? How it is processed?
What is Transaction(RDBMS)
What prog directory contains in UNIX and where it resides
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