_____________is viscoelastic?
A. Cast-iron
B. Graphite
C. Rubber
D. Glass
_____________is viscoelastic? Read More »
Electrical Engineering Materials A. Cast-iron
B. Graphite
C. Rubber
D. Glass
_____________is viscoelastic? Read More »
Electrical Engineering Materials A. copper and aluminium
B. tin and lead
C. nickel, copper and zinc
D. silver, copper and lead
Solder is an alloy of______________? Read More »
Electrical Engineering Materials A. Copper-constantan
B. Aluminium-tin
C. Silver-German silver
D. Iron-steel
In thermocouples which of the following pairs is commonly used ? Read More »
Electrical Engineering Materials A. GLS lamps
B. electric arc furnace
C. dry cells
D. cinema projectors
Carbon electrodes are not used in_______________? Read More »
Electrical Engineering Materials A. Silver nitrate
B. Ferric oxide
C. Small particles of iron
D. Silicon-iron
___________ is most commonly used for making magnetic recording tape? Read More »
Electrical Engineering Materials A. Fe203
B. Si02
C. AI2O3
D. B2O3
__________ is the main constituent of glass? Read More »
Electrical Engineering Materials A. aluminium
B. steel
C. ACSR conductors
D. copper
Overhead telephone wires are made of_____________? Read More »
Electrical Engineering Materials A. Induction hardened copper
B. Hard drawn copper
C. Pure annealed copper
D. Copper containing traces of silicon
Which of the following variety of copper has the best conductivity ? Read More »
Electrical Engineering Materials A. Carbon
B. Steel
C. Silver
D. Aluminium
Which of the following is the poorest conductor of electricity ? Read More »
Electrical Engineering Materials A. silver and tin
B. copper and tungsten
C. tungsten and silver
D. copper and nickel
Constantan contains_______________? Read More »
Electrical Engineering Materials