A. T1/(T1-T2)
B. T2/(T1-T2)
C. T1/T2
D. T2/T1
Related Mcqs:
- Co-efficient of performance of a Carnot cycle refrigerator operating between – 23°C and + 27°C is ________________?
A. 3
B. 5
C. 0.5
D. 1.5 - 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 - The type of pump used for lifting large quantity of sewage is a _________________ pump ?
A. Gear
B. Centrifugal
C. Reciprocating
D. Plunger - In Newton’s law of viscosity, which states that the shear stress is proportional to the _____________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient) ?
A. V2
B. 1/V2
C. 1/Vg
D. Vg - In case of a, centrifugal pump, the ratio h1/h2 is termed as the _____________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller)?
A. Mechanical
B. Overall
C. Volumetric
D. Impeller - Thermal efficiency of an internal combustion engine is around ______________ percent?
A. 8
B. 35
C. 65
D. 80 - Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used ?
A. Vapour locking
B. Hot starting
C. Spark plug fouling
D. All A, B & C - 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. - For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be___________________?
A. 100% indirect reduction
B. 100% direct reduction
C. 50-60% indirect reduction
D. 30-40% indirect reduction - Carnot cycle is also termed as the constant _________________ cycle in thermodynamics?
A. Entropy
B. Pressure
C. Volume
D. Heat
