A. 1
B. 1.4
C. 1.5
D. Y = Cp/Cv
Related Mcqs:
- Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________________ kJ ?
A. +4000
B. -4000
C. 10000
D. -10000 - Multistage compression of air as compared to single stage compression offers the advantage of______________?
A. Power saving per unit weight of air delivered
B. Moisture elimination in the inter-stage cooler
C. Increased volumetric efficiency
D. All A , B. & C. - In practice, the compression ratio of compression-ignition (CI) engine ranges from ______________________?
A. 15 to 25
B. 5 to 10
C. 40 to 55
D. 60 to 70 - With increase in compression ratio, the volumetric efficiency of air compressor____________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease (depends on the suction pressure) - The ratio of the shear stress to the principal stress on a principal plane is______________________?
A. 0
B. 1
C. 1/2
D. 1/3 - Case hardening is not done by________________?
A. Nitriding
B. Hot dipping
C. Electroplating
D. Both ‘B’ & ‘C’ - Work done by a/an _________________ process is determined by ∫p. dv ?
A. Adiabatic
B. Quasi-static
C. Isothermal
D. Isentropic - Which of the following materials has the least scrap value ?
A. Aluminium
B. Stainless steel
C. Brass
D. Copper - Which of the following has the least value of ultimate tensile strength (UTS) ?
A. Medium carbon steel
B. High carbon steel
C. Cast iron
D. Wrought iron - Which of the following has the highest value of refractive index ?
A. Brine (sea water)
B. Diamond
C. Distilled water
D. Glass
Mcq Added by: admin
