Engineering Materials in EE What is the name of the fluorescent material that gives red colour fluorescence? Zinc silicate. Magnesium silicate. Calcium silicate. Zinc sulphide. Zinc silicate. Magnesium silicate. Calcium silicate. Zinc sulphide. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Why diamond is very hard ? Because of covalent solid None of these Because of large cohesive energy Because of high melting point Because of covalent solid None of these Because of large cohesive energy Because of high melting point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Choose the best suitable of Diamagnetic : Paramagnetic:: Water : Air. Nickel : Cobalt. Iron : Steel. Permalloy : Super-alloy. Water : Air. Nickel : Cobalt. Iron : Steel. Permalloy : Super-alloy. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE When the atomic magnetic moments are randomly oriented in a solid its magnetic behavior is termed as anti-ferromagnetic. semi-magnetic. paramagnetic. poly crystalline. anti-ferromagnetic. semi-magnetic. paramagnetic. poly crystalline. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Susceptibility is negative for ferromagnetic substances. non magnetic substances. diamagnetic substances. none of above. ferromagnetic substances. non magnetic substances. diamagnetic substances. none of above. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Temporary magnets are used in which of the following ? Motors. All of these. Hoist. Generators. Motors. All of these. Hoist. Generators. ANSWER DOWNLOAD EXAMIANS APP
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