Stirling and Ericsson cycles are__________________?

Related Mcqs:

1. If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle___________________?

   A. more
   B. less
   C. equal
   D. depends on other factors
   E. none of the above

2. Which of the following cycles has maximum efficiency_____________?

   A. Rankine
   B. Stirling
   C. Carnot
   D. Brayton
   E. Joule

3. Which of the following cycles is not a reversible cycle_____________________?

   A. Carnot
   B. Ericsson
   C. Stirling
   D. Joule
   E. none of the above

4. Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?

   A. path functions
   B. point functions
   C. cyclic functions
   D. real functions
   E. thermodynamic functions

5. The condition of perfect vacuum, i.e., absolute zero pressure can be attained at ____________________?

   A. a temperature of – 273.16°C
   B. a temperature of 0°C
   C. a temperature of 273 °K
   D. a negative pressure and 0°C temperature
   E. can’t be attained

6. Boyle’s law i.e. pV = constant is applicable to gases under ___________________?

   A. all ranges of pressures
   B. only small range of pressures
   C. high range of pressures
   D. steady change of pressures
   E. atmospheric conditions

7. In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about_______________?

   A. 100 xlOO5 joules
   B. lxlO5 joules
   C. 10 xlO5 joules
   D. 10 xlO5 kilo joules
   E. 10xl04kiojoules

8. Carnot cycle is__________________?

   A. a reversible cycle (ft) an irreversible cycle
   C. a semi-reversible cycle
   D. a quasi static cycle
   E. an adiabatic irreversible cycle

9. First law of thermodynamics___________________?

   A. enables to determine change in internal energy of the system
   B. does not help to predict whether the system will or not undergo a change
   C. does not enable to determine change in entropy
   D. provides relationship between heat, work and internal energy
   E. all of the above

10. An open system is one in which____________________?

    A. mass does not cross boundaries of the system, though energy may do so
    B. neither mass nor energy crosses the boundaries of the system
    C. both energy and mass cross the boundaries of the system
    D. mass crosses the boundary but not the energy
    E. thermodynamic reactions do not occur