The shape of T-S diagram for Carnot Cycle is a__________________?

Related Mcqs:

1. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?

   A. T1/(T1-T2)
   B. T2/(T1-T2)
   C. T1/T2
   D. T2/R1

2. An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to_________________?

   A. 12 P1V1
   B. 6 P1 V1
   C. 3 P1V1
   D. P1 V1

3. A Carnot cycle consists of the following steps ?

   A. Two isothermal and two isentropic
   B. Two isobaric and two isothermal
   C. Two isochoric and two isobaric
   D. Two isothermals and two isochoric

4. Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the__________________?

   A. Two temperatures only
   B. Pressure of working fluid
   C. Mass of the working fluid
   D. Mass and pressure both of the working fluid

5. The main feature of Carnot refrigeration cycle is that, it________________________?

   A. Does not need the addition of external work for its functioning
   B. Transfers heat from high temperature to low temperature
   C. Accomplishes the reverse effect of the heat engine
   D. None of these

6. Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?

   A. T2/(T1 – T2)
   B. T1/(T1 – T2)
   C. (T1 – T2)/T1
   D. (T1 – T2)/T2

7. A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by_________________?

   A. P1ACBP2P1
   B. ACBB1A1A
   C. ACBDA
   D. ADBB1A1A

8. A refrigeration cycle is the same as a _____________ cycle?

   A. Turbine
   B. Heat engine
   C. Reversed heat engine
   D. None of these

9. In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be________________?

   A. 5.2
   B. 6.2
   C. 0.168
   D. Data insufficient, can’t be found out

10. The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?

    A. Less
    B. More
    C. Same
    D. Dependent on climatic conditions