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ESE Prelims 2022 Achievers Quiz 16

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Question 1

For the given circuit, the thevenin equivalent is to be determined. The thevenin voltage, V_Th (in Volt), seen from terminal AB is __________.

Question 2

Which device is suitable for higher order RF frequency multiplier/

Question 3

Find the differential equation of the system described by the transfer function given as:

Question 4

A circular loop antenna with radius r=0.60m, is operating at 2MHz. If conductivity of the wire is 57mS/m, and radius of wire is 0.2mm, then determine the radiation resistance (in

) of the antenna. (Given that: μ_r= 1)

Question 5

A unity-feedback servo-driven instrument has an open loop transfer function given as

. It is given that the peak overshoot of the system on step input is 35.1 %. Find the steady state error to an input (1 + 4t)u(t).

Question 6

Given state diagram represents.

Question 7

The longest wavelength that can be absorbed by silicon, which has the bandgap of 1.12eV, is 1.1μm. If the longest wavelength that can be absorbed by another material is 0.87μm, then the bandgap of this material is

Question 8

Match List-I (Types of transmission structure) with List-II (Modes of propagation) and select the correct answer using the code given below the lists:
List-I
A). Strip line
B). Hollow rectangular waveguide
C). Micro-strip
D). Corrugated waveguide
List-II
1). Quasi TEM
2). Pure TEM
3). TE/TM
4). Hybrid