Materials and Components Electrical contact materials used in switches, brushes, relay must possess Low thermal conductivity and low melting pointL Low thermal conductivity and high melting point High thermal conductivity and low melting point High thermal conductivity and high melting point Low thermal conductivity and low melting pointL Low thermal conductivity and high melting point High thermal conductivity and low melting point High thermal conductivity and high melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The materials which become polarized on the application of mechanical stress are called piezoelectric. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electric dipole moment is expressed in debye unit. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is linear? Iron alloy cored Cast iron cored Air cored Sheet steel cored Iron alloy cored Cast iron cored Air cored Sheet steel cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances. 1, 2 and 3 1 and 2 only 2 and 3 only 1 and 3 only 1, 2 and 3 1 and 2 only 2 and 3 only 1 and 3 only ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The most important set of specifications of transformer oil include dielectric strength and viscosity viscosity and flash point dielectric strength and flash point flash point and viscosity dielectric strength and viscosity viscosity and flash point dielectric strength and flash point flash point and viscosity ANSWER DOWNLOAD EXAMIANS APP
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