Question: A transistor behaves as a linear device for _____________?

• 1. Small signals only
• 2. Large signals only
• 3. Both small and large signals
• 4. None of the above

Question: The h parameter approach gives correct results for_______________?

• 1. Large signals only
• 2. Small signals only
• 3. Both small and large signals
• 4. None of the above

Question: Hybrid means_____________?

• 1. Mixed
• 2. Single
• 3. Unique
• 4. None of the above

Question: In CE arrangement, the value of input impedance is approximately equal to ______________?

• 1. Hie
• 2. Hoe
• 3. Hre
• 4. None of the above

Question: Rotor of a motor is usually supported on ___________________ bearings?

• 1. ball or roller
• 2. needle
• 3. bush
• 4. thrust

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