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Home ‣ Mechanical Engineering ‣ Thermodynamics See What Others Are Saying!
  • Question

  • According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) __________ with the change in pressure and temperature of the gas.


  • Options
  • A. change
  • B. do not change

  • Correct Answer
  • do not change 

    • More questions

    • 1. Seam welding is best adopted for metal thickness ranging from

    • Options
    • A. 0.025 to 3 mm
    • B. 3 to 5 mm
    • C. 5 to 8 mm
    • D. 8 to 10 mm
      • Discuss
    • 2. A spring used to absorb shocks and vibrations is

    • Options
    • A. conical spring
    • B. torsion spring
    • C. leaf spring
    • D. disc spring
      • Discuss
    • 3. A manometer can be used to measure vacuum pressures.

    • Options
    • A. Agree
    • B. disagree
      • Discuss
    • 4. Cold working of metal increases

    • Options
    • A. tensile strength
    • B. yield strength
    • C. hardness
    • D. all of these
      • Discuss
    • 5. The strength of the shaft is judged by the torque transmitted by the shaft.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 6. The pressure of a liquid measured with the help of a piezometer tube is

    • Options
    • A. vacuum pressure
    • B. gauge pressure
    • C. absolute pressure
    • D. atmospheric pressure
      • Discuss
    • 7. Workdone by a two-stage reciprocating air compressor per cycle is equal to the workdone in LP. cylinder and H.P. cylinder.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is

    • Options
    • A. 1.02
    • B. 1.32
    • C. 1.66
    • D. 1.82
      • Discuss
    • 9. Enriched uranium may contain fissionable contents from

    • Options
    • A. 1 to 40%
    • B. 10 to 50%
    • C. 1 to 80%
    • D. 1 to 99%
      • Discuss
    • 10. In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in

    • Options
    • A. condenser
    • B. evaporator
    • C. absorber
    • D. none of these
      • Discuss

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