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MCQs

Total Questions : 1058 | Page 90 of 106 pages
Question 891. One Joule (J) is equal to
  1.    10 kN-m/s
  2.    1 kN-m
  3.    10 N-m/s
  4.    1 N-m
 Discuss Question
Answer: Option D. -> 1 N-m
Question 892. The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to
  1.    2E/3
  2.    E/2
  3.    E/3
  4.    3E/4
 Discuss Question
Answer: Option A. -> 2E/3
Question 893. The efficiency of Diesel cycle approaches to Otto cycle efficiency when
  1.    Cut-off is zero
  2.    Cut-off is constant
  3.    Cut-off is increased
  4.    Cut-off is decreased
 Discuss Question
Answer: Option B. -> Cut-off is constant
Question 894. The entropy __________ in an irreversible cyclic process.
  1.    None of these
  2.    Remains constant
  3.    Increases
  4.    Decreases
 Discuss Question
Answer: Option C. -> Increases
Question 895. Reversed joule cycle is called
  1.    Brayton cycle
  2.    Rankine cycle
  3.    Bell Coleman cycle
  4.    Carnot cycle
 Discuss Question
Answer: Option C. -> Bell Coleman cycle
Question 896. The heat energy stored in the gas and used for raising the temperature of the gas is known as
  1.    Internal energy
  2.    Kinetic energy
  3.    Molecular energy
  4.    External energy
 Discuss Question
Answer: Option A. -> Internal energy
Question 897. Calorie is a measure of
  1.    Specific heat
  2.    Entropy
  3.    Quantity of heat
  4.    Thermal capacity
 Discuss Question
Answer: Option C. -> Quantity of heat
Question 898. According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
  1.    None of these
  2.    Increases
  3.    Decreases
  4.    Remains constant
 Discuss Question
Answer: Option B. -> Increases
Question 899. Kerosene is distilled at
  1.    470° to 550°C
  2.    345° to 470°C
  3.    65° to 220°C
  4.    220° to 345°C
 Discuss Question
Answer: Option D. -> 220° to 345°C
Question 900. In an isothermal process, the internal energy
  1.    Decreases
  2.    Increases
  3.    First increases and then decreases
  4.    Remain constant
 Discuss Question
Answer: Option D. -> Remain constant

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