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ESE EC 2021 Technical Quiz 15

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Question 1

Statement-1: Thermal runaway occurs in FET circuits but not in BJT circuits.

Statement-2: FET is a majority carrier device whereas BJT works on the movement of both majority and minority carriers.

Question 2

An 8-bit DAC produces Vout = 0.05 V for a digital input of 00000001. The full-scale output will be nearly

Question 3

Identify which of the following is not FTP command?

Question 4

The main advantage of Static RAM over Dynamic RAM is

Question 5

The Nyquist plot of open loop TF of a system encloses the point. The gain margin of the system in dB is

Question 6

Execution of RST n instruction causes the stack pointer to _____

Question 7

If aperture efficiency is 70%, the directivity D of a parabolic dish antenna as a function of its radius is

Question 8

A single-phase full wave rectifier uses semiconductor diodes. The transformer voltage is 35 V rms to center tap. The load consists of 40 μF capacitor in parallel with a 250 Ω. The diode's transformer resistance and leakage reactance are neglected. If the power line frequency is 50 Hz, the dc current in the circuit will be

Question 9

The temperature of a particular place varies between 14°C and 34°C. For the purpose of transmitting the temperature record of that place using PCM the record is sampled at an appropriate sampling rate and the samples are quantized. If the error in the representation of the samples due to quantization is not to exceed ± 1% of the dynamic range, the minimum number of quantization levels that can be used will be

Question 10

Select the correct options such that the transducers in Column-II work with the particular input type given column-I and the actual Actuator given in Column-III

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Mar 27ESE & GATE EC