Electrical Engineering MCQs

Page No. 107

_____________is viscoelastic?


a Cast-iron


b Graphite


cRubber


dGlass


View Answer Rubber

Solder is an alloy of______________?


acopper and aluminium


b tin and lead


cnickel, copper and zinc


d silver, copper and lead


View Answer tin and lead

In thermocouples which of the following pairs is commonly used ?


aCopper-constantan


bAluminium-tin


cSilver-German silver


d Iron-steel


View Answer Copper-constantan

Carbon electrodes are not used in_______________?


a GLS lamps


belectric arc furnace


c dry cells


dcinema projectors


View Answer GLS lamps

___________ is most commonly used for making magnetic recording tape?


aSilver nitrate


bFerric oxide


cSmall particles of iron


dSilicon-iron


View Answer Ferric oxide

__________ is the main constituent of glass?


aFe203


bSi02


cAI2O3


dB2O3


View Answer Si02

Overhead telephone wires are made of_____________?


a aluminium


bsteel


cACSR conductors


dcopper


View Answer steel

Which of the following variety of copper has the best conductivity ?


aInduction hardened copper


bHard drawn copper


c Pure annealed copper


dCopper containing traces of silicon



Which of the following is the poorest conductor of electricity ?


aCarbon


bSteel


cSilver


d Aluminium


View Answer Carbon

Constantan contains_______________?


asilver and tin


bcopper and tungsten


ctungsten and silver


d copper and nickel


View Answer copper and nickel

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