A. Carbon
B. Volatile matter
C. Ash
D. Moisture
Related Mcqs:
- Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be_____________________?
A. 5
B. 1.25
C. 2.5
D. 3.75 - Specific gravity of hot metal (pig iron) is ______________ times that of the blast furnace slag ?
A. 2
B. 3
C. 0.8
D. 6 - Energy of the sun arises mainly from __________________ reactions?
A. Fusion
B. Fission
C. Combustion
D. None of these - Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas) ?
A. √T
B. 1/√P
C. √y
D. 1/√ρ - Wavelength of radiation emitted by a body depends on the ________________ of its surface?
A. Temperature
B. Area
C. Nature
D. All ‘A’, ‘B’ & ‘C’ - Diffusion co-efficient of a metal in a solid solution depends upon its ?
A. Composition
B. Temperature
C. Both A. & B.
D. Neither A. nor B. - With increase in steam pressure, its specific volume decreases ____________________?
A. Rapidly first and then slowly
B. Linearly
C. Slowly first and then rapidly
D. Exponentially - Resilience of a bolt can be increased by increasing its __________________?
A. Length
B. Shank diameter
C. Head diameter
D. None of these - Blast furnace slag is mainly molten_________________?
A. Sand
B. Magnesium silicate
C. Calcium silicate
D. Iron pyrite - Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by_________________?
A. Conduction
B. Convection
C. Radiation
D. Both A. & B.
