A. Specific gravities
B. Densities
C. Gas characteristic constants
D. Molecular weights
Related Mcqs:
- For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg) ?
A. Propane and acetylene
B. Propane and LPG
C. Sewage gas and gobar gas
D. B.F gas and coke oven gas - Volume of blast furnace slag is about _______________ times the volume of hot metal (pig iron) of the same weight ?
A. 1.5
B. 3
C. 5
D. 7 - A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is___________________?
A. 0
B. 0.33
C. 0.44
D. 0.25 - ‘Dikes’ are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel) ?
A. V
B. V/2
C. 2V
D. 3V - 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 - Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of ______________ will facilitate the most accurate measurement of the temperature ?
A. Copper
B. Steel
C. Aluminium
D. Brass - Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories ?
A. A, C, B, D
B. D, B, C, A
C. D, C, B, A
D. D, A, B, C - Which of the following gases cause global warming ?
A. Carbon monoxide
B. Carbon dioxide
C. Nitrogen
D. Ozone - 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 - 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