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ESE Technical Revision Quiz 26

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Question 1

Assertion (A): All practical R-C phase shift oscillator generate sinusoidal oscillation with some amount of amplitude distortion, which cannot be avoided.
Reason (R): The amplitude distortion of a sinusoidal oscillator is controlled by the onset of non-linearity by the amplifying device.

Question 2

What will the bandwidth of FM signal when an audio signal having base band 150 Hz to 5 kHz modulates carrier frequency of 60 MHz with frequency of deviation/volt as 10 kHz/V and maximum transmit audio voltage as 5V?

Question 3

Data transfer between the main memory and the CPU register takes place through two registers, namely?

Question 4

The closed-loop transfer function of a unity feedback control system is,

The velocity error constant of the system is

Question 5

Which one of the following statements is correct?

Question 6

Given a range of frequencies, which of the following systems is best for transmission line load matching?

Question 7

Consider the following statements regarding an N-P-N Bipolar Junction Transistor:
1) Emitter diode is forward biased and collector diode is reverse biased
2) Emitter has many free electrons
3) Free electrons are injected into base and pass through collector
4) Depletion layer around junction J1 and J2 of BJT are widened.
Which of the above statements are correct?

Question 8

A voltmeter with an internal resistance of 200 kΩ when connected across an unknown resistance reads 250 V. The milliammeter internal resistance ≈ 0 connected in series with the above combination reads 10 mA. The actual value of the unknown resistance is

Question 9

Which one of the following has the combined characteristics of dielectric, ohmic and radiation losses?

Question 10

The graph of a network is shown in figure below.

Which one of the figures shown below is not a tree of the graph?
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Oct 12ESE & GATE EC