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-25


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241. Tin lead solder can be used to solder which of the following material?

A) Nickel
B) Copper
C) Silver
D) All of the above.

Ans : (D)

242. Which of the following statement is correct?

A) Below Curie temperature ferro-magnetic and paramagnetic materials show similar behaviour
B) Above Curie temperature ferro-magnetic and paramagnetic materials show similar behaviour
C) At Curie temperature diamagnetic and ferro-magnetic materials show identical behaviour
D) None of the above.

Ans : (B)

243. Which of the following is a hand solder?

A) Copper-lead
B) Tin-silver-lead
C) Tin-lead
D) None.

Ans : (A)

244. Density of quartz

A) 2.6
B) 6.3
C) 12.1
D) 18.6.

Ans : (A)

245. Glass is basically

A) chloride
B) arsenide
C) oxide
D) anhydride.

Ans : (C)

246. Addition of 0.3 to 4.5% silicon to iron

A) increases the electrical resistivity of iron
B) decreases the electrical resistivity of iron
C) does not change electrical resistivity of iron.

Ans : (A)

247. Which of the following is anti-ferro-magnetic material?

A) Cr Sb
B) Ni O
C) Mn O
D) All of the above.

Ans : (D)

248. Which of the following could be the dielectric with homogeneities?

A) Pour insulators
B) Plastics with fillers
C) Impregnated paper
D) All of the above.

Ans : (D)

249. Dielectric loss due to ionization is peculiar to

A) gaseous dielectrics
B) non-uniform dielectrics
C) non-metallic dielectrics
D) non-ferrous dielectrics.

Ans : (A)

250. The resistivity of ferrites is

A) very much higher than that of the ferro-magnetic metals
B) slightly higher than that of the ferro-magnetic metals
C) slightly lower than that of the ferro-magnetic metals
D) very much lower than that of the ferro-magnetic metals.

Ans : (A)


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