Jaipur metro Maintainer Electrician question 11 june 2022 paper pdf

Jaipur metro maintainer electrician question paper pdf 11 june 2022

Jaipur metro maintainer electrician total technical questions is 55,

Q.1 Which of the following is an electrochemical device?
1. Cell
2. Heater
3. Tube
4. Bulb

Answer – 1

Q.2 1 kWh of energy consumption is equal to:
1. 10 units
2. 1000 units
3. 100 units
4. 1 unit

Answer 4

Q.3 All the electrical appliances are connected in ________ which gives same voltage across it.
1. series
2. back to back
3. zigzag
4. parallel

Answer 4

Details answer key video solution available on youtube channel – VK Knowledge Electrical

Q.4 The rating of a battery is:
1. ampere
2. ampere hour
3. watt
4. watt hour

Answer 2

Q.5 According to BIS load on a sub circuit used for power application must not exceed:
1. 3 kW
2. 500 kW
3. 700 kW
4. 2 kW

Answer 1

Q.6 The voltage across a cell on open circuit conditions is 2.2 V and the voltage across the cell
when a 0.4 A current flows to circuit is 1.8 V. The internal resistance of the cell is:
1. 1 ohm
2. 1.5 ohm
3. 2.0 ohm
4. 0.5 ohm

Answer 1

Q.7 The role of carbon brushes in an electric motor is:
1. to clean the rotating part of the motor
2. to provide resistance in circuit
3. to protect the motor from burning out due to overheating
4. to avoid sparking in the motor

Answer 4

Q.8 An Earthing pipe diameter for ordinary soil is:
1. 2 inches
2. 2.5 inches
3. 1.5 inches
4. 1 inches

Answer 3

Q.9 Which of the following part of DC Machine can sustain maximum temperature rise?
1. Armature winding
2. Field winding
3. Commutator
4. Slip ring

Answer 2

With solution video answer key available on youtube channel VK Knowledge Electrical

Q.10 If 20 V, 30 V and 60 V cells are in series, then their equivalent voltage is:
1. 60 V
2. 20 V
3. 30 V
4. 110 V

Answer D

Q.11 In a lap wound DC generator having 8 poles and 240 conductors, the number of parallel
paths are:
1. 8
2. 30
3. 3
4. 240

Answer 1

Q.12 A steel core is used in a transmission line to:
1. reduce the cost of the line
2. increase the weight of the line
3. reduce the inductance of the line
4. increase the strength of the line

Answer 4

Complete paper solution of 55 question available on youtube channel.

Q.13 Which of the following tools is used to put in cross-head screws?
1. Phillips-head screwdriver
2. Architect ruler
3. Ball peen hammer
4. Flat head screwdriver

Answer 1

Q.14 Which of the following is NOT a part of the earthing family as is standard?
1. TT
2. IT
3. IN
4. TN

Answer 3

Q.15 Which of the following quantity unit is NOT Volt?
1. Magneto motive force
2. Electromotive force
3. Potential difference
4. Electric potential

Answer 1

Q.16 Leakage current flows through an earth wire instead of human body because the earth wire
has:
1. very high resistance
2. very low frequency
3. very high frequency
4. very low resistance

Answer 4

17. Usually, the least count of a Vernier calliper is:
1. 0.01 cm
2. 1 cm
3. 0.001 cm
4. 0.1 cm

Answer 4

Q.18 A neutral terminal is taken from a ______ connection of a transformer secondary.

1. star
2. series
3. delta
4. parallel

Answer 1

Q.19 The name of the transistor terminal is:
1. Collect Base Emitter
2. Collector Base Emitter
3. Collect Bias Emit
4. Collector Bias Emitter

Answer 2

Q.20 To reduce _______ loss, the core of the transformer is laminated.
1. hysteresis
2. eddy current
3. copper
4. frictional

Answer 2

Q.21 Which of the following devices protects equipment against over current and short circuit
condition automatically?
1. Limit switch
2. Switch
3. Isolator
4. Fuse

Answer 4

Q.22 For safety of household wiring ____ is used.
1. OCB
2. VCB
3. MCB
4. SF6 CB

Answer 3