A. 5
B. 1.25
C. 2.5
D. 3.75
Related Mcqs:
- Specific gravity of hot metal (pig iron) is ______________ times that of the blast furnace slag ?
A. 2
B. 3
C. 0.8
D. 6 - The value of y = cp/cv. at < 500°C for air & most common gases can be safely assumed to be_____________________?
A. 0.8
B. 1
C. 1.4
D. 1.8 - Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?
A. V/A
B. V/A2
C. V2/A
D. V2/A2 - A 2 kg object weighs 1.8 kgf on a spring balance. The value of ‘g’ at that location in m/sec2 is___________________?
A. 8.82
B. 9.81
C. 10.88
D. 0.95 - The specific gravity of coal depends mainly on its __________________ content ?
A. Carbon
B. Volatile matter
C. Ash
D. Moisture - 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 - Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?
A. 9 : 1
B. 17 : 1
C. 23 : 1
D. 29 : 1 - Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with be________________?
A. 9.5 : 1
B. 12.5 : 1
C. 15.5 : 1
D. 18.5 : 1 - Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the ______________ temperature of air?
A. Wet bulb
B. Dry bulb
C. Saturation
D. Dew point - The minimum temperature to which the water can be cooled in a cooling tower is the ______________ temperature of air?
A. Ambient
B. Dry bulb
C. Dew point
D. Wet bulb
