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MCQs

Total Questions : 1709 | Page 161 of 171 pages
Question 1601. In an isothermal atmosphere, the pressure__________________?
  1.    decreases linearly with elevation
  2.    remains constant
  3.    varies in the same way as the density
  4.    increases exponentially with elevation
  5.    unpredictable
 Discuss Question
Answer: Option C. -> varies in the same way as the density
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1602. Operation of McLeod gauge used for low pressure measurement is based on the principle of_____________________?
  1.    gas law
  2.    Boyle’s law
  3.    Charle’s law
  4.    Pascal’s law
  5.    McLeod’s law
 Discuss Question
Answer: Option B. -> Boyle’s law
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1603. Which of the following instrument can be used for measuring speed of a submarine moving in deep sea_________________?
  1.    Venturimeter
  2.    Orifice plate
  3.    hot wire anemometer
  4.    rotameter
  5.    pitot tube
 Discuss Question
Answer: Option E. -> pitot tube
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1604. A metal with specific gravity of o floating in a fluid of same specific gravity a will___________________?
  1.    sink to bottom
  2.    float over fluid
  3.    partly immersed
  4.    be fully immersed with top surface at fluid surface
  5.    none of the above
 Discuss Question
Answer: Option D. -> be fully immersed with top surface at fluid surface
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1605. Which of the following instrument can be used for measuring speed of an aeroplane ________________?
  1.    Venturimeter
  2.    Orifice plate
  3.    hot wire anemometer
  4.    rotameter
  5.    pitot tube
 Discuss Question
Answer: Option E. -> pitot tube
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1606. Mercury is often used in barometer because _________________?
  1.    it is the best liquid
  2.    the height of barometer will be less
  3.    its vapour pressure is so low that it may be neglected
  4.    both B. and C.
  5.    it moves easily
 Discuss Question
Answer: Option D. -> both B. and C.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1607. Dynamic viscosity of most of the liquids with rise in temperature____________________?
  1.    increases
  2.    decreases
  3.    remains unaffected
  4.    unpredictable
  5.    none of the above
 Discuss Question
Answer: Option B. -> decreases
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1608. Dynamic viscosity of most of the gases with rise in temperature___________________?
  1.    increases
  2.    decreases
  3.    remains unaffected
  4.    unpredictable
  5.    none of the above
 Discuss Question
Answer: Option A. -> increases
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1609. The speed of sound in a ideal gas varies directly as its ______________?
  1.    pressure
  2.    temperature
  3.    density
  4.    modulus of elasticity
  5.    absolute temperature
 Discuss Question
Answer: Option E. -> absolute temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1610. Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem __________________?
  1.    Venturimeter
  2.    Orifice plate
  3.    nozzle
  4.    pitot tube
  5.    all of the above
 Discuss Question
Answer: Option E. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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