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MCQs

Total Questions : 1058 | Page 97 of 106 pages
Question 961. The term N.T.P. stands for
  1.    Natural temperature and pressure
  2.    Normal thermodynamic practice
  3.    Nominal temperature and pressure
  4.    Normal temperature and pressure
 Discuss Question
Answer: Option D. -> Normal temperature and pressure
Question 962. The standard value of atmospheric pressure taken at sea level is
  1.    All of these
  2.    760 mm of Hg
  3.    1013 × 102 N/m2
  4.    1.013 bar
 Discuss Question
Answer: Option A. -> All of these
Question 963. First law of thermodynamics deals with
  1.    Conservation of mass
  2.    Conservation of energy
  3.    Conservation of momentum
  4.    Conservation of heat
 Discuss Question
Answer: Option B. -> Conservation of energy
Question 964. Which law states that the internal energy of a gas is a function of temperature?
  1.    Boyle's law
  2.    There is no such law
  3.    Joule's law
  4.    Charles' law
 Discuss Question
Answer: Option C. -> Joule's law
Question 965. In order that a cycle be reversible, following must be satisfied
  1.    All of these
  2.    When beat is being rejected, temperature of cold source and working substance should be same
  3.    Free expansion or friction resisted expansion/compression process should not be encountered
  4.    When heat is being absorbed, temperature of hot source and working substance should be same
 Discuss Question
Answer: Option A. -> All of these
Question 966. The value of n = 1 in the polytropic process indicates it to be
  1.    Irreversible process
  2.    Adiabatic process
  3.    Isothermal process
  4.    Reversible process
 Discuss Question
Answer: Option C. -> Isothermal process
Question 967. Diesel cycle consists of following four processes
  1.    Two isothermal and two isentropic
  2.    Two isentropic, one constant volume and one constant pressure
  3.    Two isentropic and two constant pressures
  4.    Two isentropic and two constant volumes
 Discuss Question
Answer: Option B. -> Two isentropic, one constant volume and one constant pressure
Question 968. Otto cycle consists of following four processes
  1.    Two isentropic and two constant volumes
  2.    Two isentropic and two constant pressures
  3.    Two isothermal and two isentropic
  4.    Two isentropic, one constant volume and one constant pressure
 Discuss Question
Answer: Option A. -> Two isentropic and two constant volumes
Question 969. Brayton cycle consists' of following four processes
  1.    Two isothermal and two isentropic
  2.    Two isentropic, one constant volume and one constant pressure
  3.    Two isentropic and two constant pressures
  4.    Two isentropic and two constant volumes
 Discuss Question
Answer: Option C. -> Two isentropic and two constant pressures
Question 970. The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)
  1.    Q1 - 2 = dU × W1 - 2
  2.    Q1 - 2 = dU + W1 - 2
  3.    Q1 - 2 = dU - W1 - 2
  4.    Q1 - 2 = dU/W1 - 2
 Discuss Question
Answer: Option B. -> Q1 - 2 = dU + W1 - 2

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