Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. What is used where the conduits shall be pushed right through to the interior of the fittings?
A. Couplers
B. Elbow
C. Bends
D. Tees

2. Resistance of an open circuit is equal to:
A. Zero
B. Very low
C. Very high
D. Infinite

3. Maximum safe temperature for class F insulating material is :
A. 105°C
B. 120°C
C. 130°C
D. 155°C

4. The resultant flux in an induction motor is equal to the
A. Maximum value of flux due to any phase
B. Twice of the maximum value of flux due to any phase
C. 0.5 times the maximum value of flux due to any phase
D. 1.5 times the maximum value of flux due to any phase

5. How many Link clips are packed in one card board box?
A. 100
B. 200
C. 300
D. 500

6. Speed of a DC motor depends upon
A. Field flux
B. Armature resistance
C. Applied voltage
D. All of these

7. A decade counter skips ..
A. binary states 1000 to 1111
B. binary states 0000 to 0011
C. binary states 1010 to 1111
D. binary states 1111 to higher

8. Dead weight gauge is used for the measurement of pressure of
A. About 1000 bar
B. About 2000 bar
C. About 5000 bar
D. About 7000 bar

9. Main drawback of electric drive is that :
A. It is cumbersome drive
B. It is costlier in initial as well as maintenance cost
C. Electric power supply failure makes the drive standstill
D. All these

10. What gives a diversion of 90 degree in the turn of a conduit?
A. Couplers
B. Elbow
C. Bends
D. Tees

11. Which of the following colour is used for radiation hazard?
A. Red
B. Orange
C. Green
D. Purple

12. For a synchronous motor, as the load angle reaches up to 90 electrical i.e. half a pole pitch, then the magnetic locking between the stator and rotor
A. No longer exist
B. Will be strongest
C. Will be weakest
D. None of these

13. If back e.m.f. suddenly disappears in a DC motor
A. Motor will start action as a generator
B. Motor will stop
C. Windings will burn due to high armature current
D. Nothing will happen

14. An SCR is turned off by .
A. Reducing anode voltage to zero
B. Reducing gate voltage to zero
C. Reverse biasing the gate
D. None of these

15. Current rating of fuse is determined based upon :
A. Full load circuit
B. Starting current
C. 3/4 full load circuit
D. Half full loasd circuit

16. A safety programme consists of
A. Three Es
B. Four Es
C. Five Es
D. Six Es

17. AC power in a load can be controlled by using
A. two SCRs in parallel opposition
B. two SCRs in series
C. three SCRs in series
D. four SCRs in series

18. Voltage required to operate a neon sign tube depends upon :
A. Diameter of the tube
B. Gases in the tube
C. Length of the tube
D. Thickness of the tube

19. The torque produced by a series combination of two DC series motor is
A. Half the torque when they are connected in parallel
B. Twice the torque when they are connected in parallel
C. Four times the torque when they are connected in parallel
D. Equal to the torque when they are connected in parallel

20. In an induction motor, rotor speed is always
A. Less than the stator speed
B. More than the stator speed
C. Equal to the stator speed
D. None of these

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