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MCQs

Total Questions : 1709 | Page 151 of 171 pages
Question 1501. The property of a fluid which enables it to resist tensile stress is known as________________?
  1.    compressibility
  2.    surface tension
  3.    cohesion
  4.    adhesion
  5.    viscosity
 Discuss Question
Answer: Option C. -> cohesion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1502. When the flow parameters at any given instant remain same at every point, then flow is said to be____________________?
  1.    quasi static
  2.    steady state
  3.    laminar
  4.    uniform
  5.    static
 Discuss Question
Answer: Option D. -> uniform
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1503. The specific weight of water is 1000 kg/m” _______________?
  1.    at norma] pressure of 760 mm
  2.    at 4°C temperature
  3.    at mean sea level
  4.    all the above
  5.    none of the above.
 Discuss Question
Answer: Option D. -> all the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1504. The surface tension of mercury at normal temperature compared to that of water is____________________?
  1.    more
  2.    less
  3.    same
  4.    more or less depending on size of glass tube
  5.    none of the above
 Discuss Question
Answer: Option A. -> more
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1505. An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?
  1.    10m/sec2
  2.    9.81 m/sec2
  3.    10.2/m sec
  4.    9.75 m/sec2
  5.    9 m/sec
 Discuss Question
Answer: Option A. -> 10m/sec2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1506. The normal stress in a fluid will be constant in all directions at a point only if_________________?
  1.    it is incompressible
  2.    it has uniform viscosity
  3.    it has zero viscosity
  4.    it is frictionless
  5.    it is at rest
 Discuss Question
Answer: Option E. -> it is at rest
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1507. For very great pressures, viscosity of moss gases and liquids __________________?
  1.    remains same
  2.    increases
  3.    decreases
  4.    shows erratic behaviour
  5.    none of the above
 Discuss Question
Answer: Option D. -> shows erratic behaviour
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1508. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?
  1.    1000
  2.    2100
  3.    2700
  4.    10,000
  5.    21,000
 Discuss Question
Answer: Option E. -> 21,000
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1509. The bulk modulus of elasticity __________________?
  1.    has the dimensions of 1/pressure
  2.    increases with pressure
  3.    is large when fluid is more compressible
  4.    is independent of pressure and viscosity
  5.    is directly proportional to flow
 Discuss Question
Answer: Option B. -> increases with pressure
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1510. Viscosity of water in comparison to mercury is ______________________?
  1.    higher
  2.    lower
  3.    same
  4.    higher/lower depending on temperature
  5.    unpredictable
 Discuss Question
Answer: Option A. -> higher
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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