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-10


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91. Brass is an alloy of

A) Tin and silver
B) Lead and tin
C) Zinc and lead
D) Copper and zinc.

Ans : (D)

92. Bronze is an alloy of

A) Copper and tin
B) Copper, lead and tin
C) Copper, zinc and tin
D) Copper and zinc.

Ans : (A)

93. Which type of electron pair-exists in a semi-conductor?

A) Hetropolar
B) Homopolar
C) Non-ionic
D) Ionic.

Ans : (B)

94. In ferromagnetic materials

A) one of the constituent is iron
B) the constituent is iron only
C) the atomic magnetic moments are parallel
D) the atomic magnetic moments are anti-parallel and unequal.

Ans : (C)

95. When the atomic magnetic moments are randomly oriented in a solid its magnetic behaviour is termed as

A) semi-magnetic
B) paramagnetic
C) anti-ferromagnetic
D) poly crystalline.

Ans : (B)

96. The structure of a semi-conductor is like that of a

A) rhombus
B) circle
C) diamond
D) triangle.

Ans : (C)

97. Which of the following polymers is crystalline?

A) Polyvinylidene chloride
B) Polyvinyl chloride
C) Lolymethyl metacrylate
D) Polyethylene

Ans : (D)

98. Germanium has

A) molecular bond
B) metallic bond
C) covalent bond
D) ionic bond.

Ans : (C)

99. Materials which lack permanent magnetic dipoles are called

A) semi-magnetic
B) ferromagnetic
C) diamagnetic
D) none of the above.

Ans : (C)

100. An alloy containing 71% copper, 28% Zinc and 1% tin is known as

A) Muntz metal
B) Admiralty brass
C) Alpha brass
D) Cartridge brass.

Ans : (B)


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