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ESE Prelims 2022 Achievers Quiz 2

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Question 1

The cut-in voltage of zener diode D_Z and diode D shown in the figure below is 0.7 V. Breakdown voltage of D_Z is 3.3 V and reverse breakdown voltage of D is 50 V. The other parameters can be assumed to be the same as those of an ideal diode. Then what are the values of the peak output voltage V₀?

Question 2

The characteristic polynomial of a feedback control system is given by

R(s) = s⁵ + 2s⁴ + 2s³ + 4s² + 11s + 10

For this system, the numbers of roots that lie in the left hand and right hand s-plane respectively, are

Question 3

A resistance has nominal value of 50 Ω when it is measured, it comes out to be 55Ω. Find the % error?

Question 4

Voltage and current wave across a load element is given below

V(t) = 115 sin (314t + 15°)

i(t) = 23 sin (314 t — 45°)

Which of the following statement is correct with respect to the load?

Question 5

If the total voltage in the Am wave is 5.196 V and modulation index is 0.4 then the carrier voltage before modulation is ______ V

Question 6

In microwave communication line height of transmitter and receiver are 25 m and 64 m respectively then the range of this line operates satisfactory is __________ km

Question 7

A silicon crystal having a cross sectional area of 0.001 cm² and a length of 20

is connected to its ends to a 20V battery . At T=300K , What would be the concentration of donor atoms to be added for current of 100mA in crystal ?

Question 8

The Nyquist sampling rate for the function given below will be x(t) = since² 100t

Question 9

What is the atomic packing factor for FCC crystal structure?

Question 10

Locality of reference concept will fall in which of the following cases?

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ESE & GATE EC General

Jul 11ESE & GATE EC