A. low carbon steel
B. wrought iron
C. cast iron
D. malleable iron
Related Mcqs:
- Carbon electrodes are not used in_______________?
A. GLS lamps
B. electric arc furnace
C. dry cells
D. cinema projectors - A carbon resistor contains_____________?
A. carbon crystals
B. solid carbon granules
C. pulverized coal
D. finely divided carbon black - Carbon rods are used in wet and dry cells because_____________?
A. carbon rod serves as conductor
B. carbon can resist the attack of battery acid
C. both (A) and (B)
D. either (A) or (B) - Carbon resistors are used extensively because they are____________?
A. easy to make
B. compact
C. inexpensive
D. all of the above reasons - Carbon bearings are used under which of the following conditions ?
A. Where lubrication is difficult or im-possible
B. Where corrosive chemical action exists
C. Where high temperature exists
D. All of the above - The covalent bond is formed by_______________?
A. transfer of electrons between atoms
B. sharing of electrons between atoms
E. sharing of variable number of electrons by a variable number of atoms
D. none of the above - highest conductivity_____________?
B. lowest temperature co-efficient
C. good mechanical strength
D. good corrosion resistance
E. easy solderable and drawable quality
F. all of the above - Constantan contains_______________?
A. silver and tin
B. copper and tungsten
C. tungsten and silver
D. copper and nickel - Non-linear resistors______________?
A. produce harmonic distortion
B. follows Ohm’s law at low temperatures only
C. result in non-uniform heating
D. none of the above - is the property of absorbing moisture from atmosphere_____________?
A. Solubility
B. Viscosity
C. Porosity
D. Hygroscopicity
