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ISRO EE Quiz 8

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Question 1

Choose the INCORRECT statement with respect to the use of electrical transducers.

Question 2

A 100-pF capacitor has a maximum charging current of 150 µA. What is the slew rate of capacitor?

Question 3

A 6 -pole, wave-wound armature has 600 conductors and is driven at 700 rpm. Determine the generated EMF in the armature if the flux per pole is 10 mWb.

Question 4

In the circuit shown below, steady state was reached when the switched ‘
S’ was open. The switched was closed at t = 0. The initial value of the current through the capacitor 2 C is

Question 5

Which of the following torques is NOT associated with a synchronous motor?

Question 6

A 3 phase, 4 pole, 400 V, 10 kW slip ring induct ion motor has rotor resistance = 0.16 Ω per phase and stator resistance of 0.27 Ω per phase. The voltage across the slip rings at standstill is 141 V per phase. The motor develops a torque of 62.4 Nm at a slip of 0.08 and the rotor current is 6 A. What is the rotor current if a voltage is injected to the rotor so that the motor runs at slip s = 0.02 and develops same torque?

Question 7

Which among the following logic family has least propagation delay?

Question 8

If u(t), r(t) denotes unit step and unit ramp function respectively and u(t)*r(t) their convolution, then function u(t + 1)*r(t - 2) is

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ESE & GATE EE General

Apr 17ESE & GATE EE