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ESE Technical Revision Quiz 17

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Question 1

If an input sequence x(t)=p(t) of an LTI system having an impulse response is z(t) = a^tp(t), |n|<1, then find the output signal q(t) of the system.

Question 2

What will be the total modulation index if a wave is amplitude modulated by three sine waves with modulation indices of 25%, 50% and 75%?

Question 3

Which one of the following is correct fro ASCII codes of all upper case English letters compared to all lower case English letters?

Question 4

Bandwidth as described in amplitude ratio graph shown for T and set-point response is:

Question 5

A half adder can be constructed using

Question 6

If the length of dipole antenna is close to 1 wavelength, then:

Question 7

Match List-I (Type of Conductor) with List-II (Position of Fermi Level) and select the correct answer using the codes given below the lists:
List-I
A) n-type semiconductor
B) p-type semiconductor
C) Intrinsic semiconductor
D) Degenerate n-type semiconductor
List-II
1) Middle of band gap
2) Above conduction band
3) Near but below conduction band
4) Near but above valence band

Question 8

A ray of light incident on a glass slab (of refractive index 1.5) with an angle,

then the value of sine of angle of refraction is:

Question 9

A current of 2.0 A passes through a cell of emf 1.5 V having internal resistance of 0.15 Ω. The potential difference across the terminals of the cell is

Question 10

What are the ABCD parameters of the single element circuit given below?

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ESE & GATE EC General

Dec 17ESE & GATE EC