SOLID STATE DRIVES Quiz1

1. Which type of drive system is used in travelling cranes?

• a. Group Drive

• b. Individual Drive

• c. Multimotor drive

• d. DC drive

2. What is the best choice of drive type for lathe machine?

• a. Group drive

• b. Multimotor drive

• c. Individual drive

• d. AC drive

3. Which quadrant the reverse motoring is applicable?

• a. I

• b. II

• c. III

• d. IV

4. What is the torque equation of motor during acceleration?

• a. Tm = TL

• b. Tm > TL

• c. Tm < TL

• TL = 0

5.What is the condition for steady state stability of motor?

• Tm = TL

• Tm < TL

• Tm > TL

• Tm + J = TL

6. Examble for active torque is ----------

• a. Deformation of Elastic body

• a. Deformation of inelastic body

• c. Friction force

• d. Wintage torque

7. What is the better choice of motor drive is suitable for lift application?

• a. DC Series motor

• b. DC Shunt motor

• c. DC Compound motor

• d. Differential compound motor

8. Whis is the purpose of skewing in induction motor?

• a. Reduce magnetic hum

• b. Reduce oscillations

• c. Reduce the harmonics

• d. Reduce the starting torque

9. What is other name for frequency control of 3phase IM?

• a. v/f control

• b. Kramer's Drive

• c. Rotor resistance control

• d. Field weakening method

10. Slip power is -----------

• a. Slip P airgap (SPag)

• b. Slip

• c. Pag

• d. (1-S) Pag