1. What safety sign does the white sign on the blue surface
indicate?
(A) Mandatory
(B) Prohibitive
(C) Warning
(D) Informational
Answer- (A)
2. Hitting elements are made?
(A) copper
(B) nichrome
(C) Eureka
(D) Nikil
Answer- (B)
3. Ohm’s law applies?
(A) on AC
(B) DC
(C) AC and DC
(D) None
Answer - (C)
4. What is called ability to work?
(A) power
(B) energy
(C) efficiency
(D) Horse power
Answer- (B)
5. What is the cathode made in a voltaic cell?
(A) zinc
(B) copper
(C) Carbon
(D) Nikil
Answer- (A)
6. Which of the two resistors will have more resistance than
200 watts and 856 watts of same voltage lamp?
(A) 856 Watt
(B) 200 watts
(C) will be equal
(D) None of these
Answer- (B)
7. What is action in the pole like a magnet?
(A) Attraction
(B) repulsion
(C) Strength
(D) nothing
Answer- (B)
8. If three resistors of 5 ohm are connected to a 1.5 volt
cell, the value of current in the circuit will be
(A) 10 Amp.
(B) 1.0 Amp.
(C) 0.1 Amp.
(D) None of these
Answer - (C)
9. What does thumb represent in the right hand rule?
(A) magnetic force
(B) North Pole
(C) Southern Pole
(D) current direction
Answer- (D)
10. What is the value of current in a short circuit?
(A) zero
(B) Infinite
(C) Less
(D) very few
Answer- (B)
11. is the unit of heat?
(A) Centigrade
(B) calories
(C) Calories / joule
(D) watt-second
Answer- (B)
12. Which one of the following is not one of the three major
effects of electric current?
(A) Chemical
(B) Magnetized
(C) Rays
(D) Thermal
Answer - (C)
13. What is the supply frequency value in India?
(A) 50 Hz
(B) 45 Hz
(C) 55 Hz
(D) 51 Hertz
Answer- (A)
14. Which of the following is the value of high voltage
cable?
(A) 250 volts
(B) 11000 volts
(C) 33000 volts
(D) 22000 volts
Answer- (D)
15. What is the working rate called?
(A) power
(B) Energy
(C) force
(D) Torque
Answer- (A)
16. What is the Dynamic Induced EMF formula to find out?
(A) BAVsin𝜃
(B) KlVsin𝜃
(C) BLV𝐬𝐢𝐧𝜽
(D) BIVsin𝜃
Answer - (C)
17. What is a voltaic cell?
(A) Primary
(B) Secondary
(C) dry
(D) Alkali
Answer- (A)
18. The resistance can be increased by reducing which of the
following factors?
(A) length
(B) Width
(C) Cross section area
(D) heat
Answer - (C)
19. 250 watt 250 volt lamp will have resistance?
(A) 25 ohm
(B) 250 ohm
(C) 1 ohm
(D) 625 ohm
Answer- (B)
20. Permeans is the unit of?
(A) Weber / Ampere
(B) Ampere / Weber Turn
(C) web / ampere turn
(The) ampere-turn