ECET EEE 2010-9

1. In the stair case lighting arrangements the bulb glows, when the switch positions are

A) in the same position
B) in opposite position
C) First one in ON position and second one in OFF position
D) First one in OFF position and second one in ON position

Answer : in the same position
Explanation:-

2. For long runs, the economical drive used in traction is _______ drive

A) flywheel
B) battery
C) trolley
D) hybrid

Answer : Hybrid
Explanation:-

3. In closed loop control systems, with positive value of feedback gain, the overall gain of the system will

A) Increases
B) Decreases
C) Be unaffected
D) Blast

Answer : Increases
Explanation:-

4. When the feedback signal becomes equal to the reference signal, then the _______ signal will becomes zero

A) Reference
B) Input
C) Output
D) Actuating

Answer : Output
Explanation:-

5. Human systems is a multi variable closed loop control system

A) False
B) True
C) no, it is an open loop
D) Not a control system

Answer : True
Explanation:-

6. A driver runs a car at a constant speed of 80kmph In this case, the feedback element is

A) Eyes
B) Clutch
C) Steering wheel
D) Needle of the speedometer

Answer : Eyes
Explanation:-

7. Which type motor is used in ceiling fan,Refrigerator,compressor and other loads requiring no noise opration

A) DC Series motor
B) 3-phase synchronous motor
C) 1-phase capacitor start and run induction motor
D) Schrage motor

Answer : 1-phase capacitor start and run induction motor
Explanation:-

8. In the stair case lighting arrangement the number of switches used are

A) One
B) Two
C) Three
D) Zero

Answer : Two
Explanation:-

9. An electric drive system consists of

A) An electric motor
B) An electric generator
C) A motor along with speed control system
D) Speed control system

Answer : A motor along with speed control system
Explanation:-

10. The speed of a dc motor can be varied below the rated speed by

A) Field weakening method
B) Armature voltage control method
C) Both 1 and 2
D) Four point starter

Answer : Armature voltage control method
Explanation:-