Question: The size of an excavator is usually expressed in terms of_________________?

• 1. ‘crowd’ motion
• 2. angle of swing
• 3. cubic metres
• 4. travel in metres

Question: _________________method of starting a three phase induction motor needs six terminals ?

• 1. Star-delta
• 2. Resistance starting
• 3. Auto-transformer
• 4. None of the above

Question: Which of the following is essentially needed while selecting a motor ?

• 1. Pulley
• 2. Starter
• 3. Foundation pedal
• 4. Bearings

Question: In a paper mill where constant speed is required________________?

• 1. synchronous motors are preferred
• 2. AC motors are preferred
• 3. individual drive is preferred
• 4. group drive is preferred

Question: For blowers which of the following motor is preferred ?

• 1. DC series motor
• 2. DC shunt motor
• 3. Squirrel cage induction motor
• 4. Wound rotor induction motor

Question: Reluctance motor is a________________?

• 1. variable torque motor
• 2. low torque variable speed motor
• 3. self starting type synchronous motor
• 4. low noise, slow speed motor

Question: A reluctance motor_________________?

• 1. is provided with slip rings
• 2. requires starting gear
• 3. has high cost
• 4. is compact

Question: ___________________is preferred for synthetic fibre mills?

• 1. Synchronous motor
• 2. Reluctance motor
• 3. Series motor
• 4. Shunt motor

Question: Which of the following motors is used for elevators ?

• 1. Induction motor
• 2. Synchronous motor
• 3. Capacitor start single phase motor
• 4. Any of the above

Question: ________________ motor is a constant speed motor?

• 1. Synchronous motor
• 2. Schrage motor
• 3. Induction motor
• 4. Universal motor