Electric Drives Mock Test 5

10%

Question 1 of 10

1. Selectivity value increases for lower values of bandwidths.

True

False

Question 1 of 10

Question 2 of 10

2. Calculate the equivalent resistance when two resistances are connected in parallel of values 8 Ω, 8 Ω.

2 Ω

4 Ω

7 Ω

3 Ω

Question 2 of 10

Question 3 of 10

3. The field diverter resistance for a DC series motor is kept ________

one

High

zero

Low

Question 3 of 10

Question 4 of 10

4. Calculate the equivalent resistance when two resistances are connected in parallel of values 2 Ω, 2 Ω.

1 Ω

7 Ω

4 Ω

2 Ω

Question 4 of 10

Question 5 of 10

5. Full form of IFOC.

Indirect field oriented control

Isolated field oriented control

Inverter field oriented control

Insight field oriented control

Question 5 of 10

Question 6 of 10

6. Torque developed in the motor is ___________

K_mΦI_a³

2K_mΦI_a

K_mΦI_a

K_mΦI_a²

Question 6 of 10

Question 7 of 10

7. Calculate the velocity of the ball if the angular speed is 7 rad/s and radius is .2 m.

1.0 m/s

2.5 m/s

4.5 m/s

1.4 m/s

Question 7 of 10

Question 8 of 10

8. Calculate the value of the capacitive reactance during resonance if the value of the inductor is 5 H and supply frequency is 20 rad/sec.

300 Ω

700 Ω

200 Ω

100 Ω

Question 8 of 10

Question 9 of 10

9. In dynamic braking, DC series motor behaves as a ____________

Thyristor

Separately excited motor

Transformer

Induction motor

Question 9 of 10

Question 10 of 10

10. The characteristics shown by an element in the I-V curve is V=I². The nature of the element is _______

Linear, Unilateral, Active

Linear, Bilateral, Passive

Non-linear, Unilateral, Active

Non-linear, Bilateral, Passive

Question 10 of 10