What is the typical slip value for a squirrel-cage induction motor operating at full load?

The correct answer is B: 3-5%. Full load slip for squirrel-cage motors typically ranges from 3-5% for good efficiency

A unity feedback control system has an open-loop transfer function G(s) = 10/(s(s+2)). What is the steady-state error for a unit ramp input?

The correct answer is A: 0.2. For ramp input, ess = 1/Kv where Kv = lim s→0 s·G(s) = 10/2 = 5. Therefore ess = 1/5 = 0.2

The setup time of a flip-flop is defined as the minimum time during which the input must be stable:

The correct answer is A: Before the clock edge. Setup time is the minimum time before the active clock edge during which the input data must remain stable to ensure correct capture.

A voltmeter has an internal resistance of 100 kΩ and shows a reading of 50 V across a 1 MΩ resistor. What is the true voltage across the resistor?

The correct answer is C: 54.55 V. The voltmeter and resistor form a parallel circuit. Using voltage divider: V_true = 50 × (1000 + 100) / 1000 ≈ 54.55 V

Two identical resistors R are connected in parallel. What is the equivalent resistance?

The correct answer is B: R/2. For parallel resistors: 1/Req = 1/R + 1/R = 2/R. Therefore, Req = R/2

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Electrical Engg (EEE)
Digital Electronics

Electrical machines, power systems, circuits

31 Q 7 Topics Take Mock Test

Difficulty: All Easy Medium Hard 31–31 of 31

Topics in Electrical Engg (EEE)

All Circuit Analysis 100 Electrical Machines 100 Power Systems 100 Control Systems 100 Power Electronics 100 Electrical Measurements 40 Digital Electronics 100

Q.31 Easy Digital Electronics

Which of the following logic gates produces output 1 only when all inputs are 1?

A AND gate

B OR gate

C NAND gate

D NOR gate

Correct Answer: A. AND gate

EXPLANATION

AND gate produces 1 only when all inputs are 1. For 2-input AND: output = A.B

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Electrical Engg (EEE) Digital Electronics

Electrical Engg (EEE)
Digital Electronics