I have attended the GAIL entrance exam for post of sr. en
these r the questions
approx .to my memory
1.most of the questions came from electrical and electronic measurement
2.DVM -resolution to be found if the display is of 4 digit
4.Crt monitor and lissagious pattern
5.creeping in energy meter is due to........
6.wht is the common carrier used in chromotograph.
7.Band pass filter(almost all types)
8.push pull amplifier
9.process control....cascade is having f/b or f/w or both
10.bode plot, all type of methods used to find stability, response ,poles and zeros etc.
14.T/c used in parallel are used for what purpose ...y t/c r kept in parallel
15.lvdt-used to measure?
16.random error ...systematic error
17.wheat stone bridge
18.kelvin bridge is used for?
20.resistance VS temp.eqn
i.RTD ii.T/Ciii.thermistors iv.resistance strain gauge
22.prob in gauge factor
27.Nuclear Inst alpha particles. beta particles, gamma particles
28.Inductance ,capacitance -measurement
29.electromagnetic flow meter principle
32.optical fiber is used becoz -advantages
33.watt meter .
34.guarded wheatstone bridge.
36.true rms -voltmeter
38.hamonic distortion nalyzer
42.audio frequency range.
in 50 aptitude -some came from politics, g.k, maths, english