Electrician Exam Question Paper (100 MCQs With Answers) – Part 2

Electrician Exam Question Paper (100 MCQs With Answers) – Part 2

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PART – A (Technical – Electrician Trade) – Questions 21 to 50

**21. The part of a motor that rotates is called—

(A) Stator
(B) Rotor
(C) Winding
(D) Terminal
➡ Answer: (B)**

**22. Which motor is used in fans?

(A) DC motor
(B) Universal motor
(C) Single phase induction motor
(D) Stepper motor
➡ Answer: (C)**

**23. The frequency of DC supply is—

(A) 0 Hz
(B) 50 Hz
(C) 60 Hz
(D) 100 Hz
➡ Answer: (A)**

**24. Soldering metal commonly used is—

(A) Lead + Zinc
(B) Lead + Tin
(C) Iron + Zinc
(D) Tin + Copper
➡ Answer: (B)**

**25. Electric shock is caused due to—

(A) Voltage
(B) Current
(C) Resistance
(D) Power
➡ Answer: (B)**

**26. Transformer oil is used for—

(A) Lubrication
(B) Cooling & insulation
(C) Increase voltage
(D) Reduce current
➡ Answer: (B)**

**27. In a 3-phase system, the phase difference is—

(A) 60°
(B) 90°
(C) 120°
(D) 180°
➡ Answer: (C)**

**28. The instrument used to check continuity is—

(A) Megger
(B) MCB
(C) Multimeter
(D) Relay
➡ Answer: (C)**

**29. CFL stands for—

(A) Compact Fluorescent Lamp
(B) Central Fluorescent Light
(C) Commercial Fluorescent Lamp
(D) Circuit Fluorescent Light
➡ Answer: (A)**

**30. Which one is a good conductor?

(A) Rubber
(B) Glass
(C) Silver
(D) Plastic
➡ Answer: (C)**

**31. The EMF unit is—

(A) Newton
(B) Volt
(C) Ampere
(D) Farad
➡ Answer: (B)**

**32. MCB stands for—

(A) Main Circuit Breaker
(B) Miniature Circuit Breaker
(C) Medium Circuit Board
(D) Mechanic Circuit Box
➡ Answer: (B)**

**33. Which is NOT a type of transformer loss?

(A) Copper loss
(B) Iron loss
(C) Friction loss
(D) Hysteresis loss
➡ Answer: (C)**

**34. In an induction motor, slip is—

(A) Always zero
(B) Always one
(C) Less than 1
(D) Greater than 1
➡ Answer: (C)**

**35. LED uses which semiconductor material?

(A) Silicon
(B) Gallium
(C) Copper
(D) Zinc
➡ Answer: (B)**

**36. Earthing reduces—

(A) Voltage
(B) Shock hazard
(C) Frequency
(D) Power
➡ Answer: (B)**

**37. Resistance is measured in—

(A) Ohm
(B) Watt
(C) Volt
(D) Henry
➡ Answer: (A)**

**38. Which cable is used for underground service?

(A) PVC
(B) XLPE
(C) Wooden
(D) Paper
➡ Answer: (B)**

**39. The device that converts mechanical energy into electrical energy—

(A) Motor
(B) Generator
(C) Transformer
(D) Inverter
➡ Answer: (B)**

**40. A capacitor is measured in—

(A) Henry
(B) Farad
(C) Ampere
(D) Ohm
➡ Answer: (B)**

**41. Which is a non-renewable source?

(A) Wind
(B) Solar
(C) Coal
(D) Water
➡ Answer: (C)**

**42. The neutral wire carries—

(A) No current
(B) Return current
(C) Extra voltage
(D) Power factor
➡ Answer: (B)**

**43. Ferrule denotes—

(A) Earthing
(B) Wire numbering
(C) Fuse rating
(D) Voltage rating
➡ Answer: (B)**

**44. A 3-phase supply has—

(A) 1 live wire
(B) 2 live wires
(C) 3 live wires
(D) 4 live wires
➡ Answer: (C)**

**45. Frequency meter measures—

(A) Voltage
(B) Frequency
(C) Temperature
(D) Resistance
➡ Answer: (B)**

**46. A synchronous motor runs at—

(A) Below synchronous speed
(B) Above synchronous speed
(C) Exact synchronous speed
(D) Variable speed
➡ Answer: (C)**

**47. Insulators are used to—

(A) Conduct current
(B) Store energy
(C) Prevent leakage
(D) Reduce resistance
➡ Answer: (C)**

**48. The standard voltage for domestic supply in India is—

(A) 110 V
(B) 220–240 V
(C) 380 V
(D) 440 V
➡ Answer: (B)**

**49. RCCB protects against—

(A) Overload
(B) Short circuit
(C) Earth leakage
(D) Temperature
➡ Answer: (C)**

**50. A diode allows current in—

(A) Both directions
(B) No direction
(C) Only one direction
(D) Depends on voltage
➡ Answer: (C)**

Electrician Exam Question Paper (100 MCQs With Answers)-1  

Electrician Exam Question Paper (100 MCQs With Answers) – Part 3

Electrician Exam Question Paper (100 MCQs With Answers) – Part 4