Index

SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-MotorsMCQ-Electric-PowerMCQ-Illumination

Multiple Choice Question (MCQ) of Materials page-7


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61. Electrical contact resistance is better between

A) metal and insulated
B) carbon and carbon
C) metal and metal
D) carbon and metal.

Ans : (D)

62. Dies for wire drawing are generally made of

A) carbides
B) high carbon steel
C) mild steel
D) cast iron.

Ans : (A)

63. The process of zinc coating used extensively for protecting steel from atmospheric deterioration is known as

A) Colourizing
B) Galvanizing
C) Parkerising
D) Anodizing.

Ans : (B)

64. Which of the following materials is used for cable insulation?

A) Polytetra fluoroethylene
B) Phenol formaldehyde
C) Acrylontrile Butadiene Styrene
D) Polyvinyl chloride.

Ans : (D)

65. Neoprene is

A) rubber like plastic
B) elastic-plastic
C) elastic
D) plastic.

Ans : (A)

66. Solder is an alloy of

A) copper & aluminium
B) tin & lead
C) silver, copper & lead
D) nickel, copper & zinc.

Ans : (B)

67. Which is the amorphous material out of the following?

A) Glass
B) Silver
C) Lead
D) Zinc.

Ans : (A)

68. The ability of material to absorb a large amount of energy is

A) malleability
B) toughness
C) resilience
D) ductility.

Ans : (C)

69. Which of the following is piezo-electric material?

A) Polysterene
B) Corrundum
C) Silica sand
D) Quartz.

Ans : (D)

70. Which of the following materials is viscoelastic?

A) Cast iron
B) Glass
C) Graphite
D) Rubber.

Ans : (D)


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