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MCQs

Total Questions : 3147 | Page 10 of 315 pages
Question 91. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
  1.    (2/3) Cd × b × √(2gH)
  2.    (2/3) Cd × b × √(2g) × H
  3.    (2/3) Cd × b × √(2g) × H3/2
  4.    (2/3) Cd × b × √(2g) × H2
 Discuss Question
Answer: Option C. -> (2/3) Cd × b × √(2g) × H3/2
Question 92. An ideal flow of any fluid must fulfill the following
  1.    Newton's law of motion
  2.    Newton's law of viscosity
  3.    Pascal' law
  4.    Continuity equation
 Discuss Question
Answer: Option D. -> Continuity equation
Question 93. Venturimeter is used to
  1.    Measure the velocity of a flowing liquid
  2.    Measure the pressure of a flowing liquid
  3.    Measure the discharge of liquid flowing in a pipe
  4.    Measure the pressure difference of liquid flowing between two points in a pipe line
 Discuss Question
Answer: Option C. -> Measure the discharge of liquid flowing in a pipe
Question 94. The centre of pressure acts __________ the centre of gravity of immersed surface.
  1.    At
  2.    Above
  3.    Below
  4.    None of these
 Discuss Question
Answer: Option C. -> Below
Question 95. In a free nappe,
  1.    The pressure below the nappe is atmospheric
  2.    The pressure below the nappe is negative
  3.    The pressure above the nappe is atmospheric
  4.    The pressure above the nappe is negative
 Discuss Question
Answer: Option A. -> The pressure below the nappe is atmospheric
Question 96. In a static fluid
  1.    Resistance to shear stress is small
  2.    Fluid pressure is zero
  3.    Linear deformation is small
  4.    Only normal stresses can exist
 Discuss Question
Answer: Option D. -> Only normal stresses can exist
Question 97. The unit of kinematic viscosity in S. I. units is
  1.    N-m/s
  2.    N-s/m2
  3.    m2/s
  4.    N-m
 Discuss Question
Answer: Option C. -> m2/s
Question 98. Center of pressure on an inclined plane is
  1.    At the Centroid
  2.    Above the Centroid
  3.    Below the Centroid
  4.    At metacentre
 Discuss Question
Answer: Option C. -> Below the Centroid
Question 99. Low specific speed of turbine implies it is
  1.    Propeller turbine
  2.    Francis turbine
  3.    Impulse turbine
  4.    Any one of the above
 Discuss Question
Answer: Option C. -> Impulse turbine
Question 100. Medium specific speed of turbine implies it is
  1.    Propeller turbine
  2.    Francis turbine
  3.    Impulse turbine
  4.    Any one of the above
 Discuss Question
Answer: Option B. -> Francis turbine

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