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MCQs

Total Questions : 3147 | Page 309 of 315 pages
Question 3081. In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?
  1.    constant
  2.    variable
  3.    zero
  4.    zero under limiting conditions
  5.    never zero
 Discuss Question
Answer: Option C. -> zero
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3082. Gradually varied flow is__________________?
  1.    steady uniform
  2.    non-steady non-uniform
  3.    non-steady uniform
  4.    steady non-uniform
  5.    true one-dimensional
 Discuss Question
Answer: Option D. -> steady non-uniform
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3083. True one-dimensional flow occurs when_________________?
  1.    the direction and magnitude of the veiocity at all points are identical
  2.    the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
  3.    the magnitude and direction of the velocity do not change from point to point in the fluid
  4.    the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
  5.    velocity, depth, pressure etc. change from point to point in the fluid flow
 Discuss Question
Answer: Option A. -> the direction and magnitude of the veiocity at all points are identical
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3084. Rotameter is a device used to measure______________?
  1.    absolute pressure
  2.    velocity of fluid
  3.    flow
  4.    rotation
  5.    velocity of air
 Discuss Question
Answer: Option C. -> flow
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3085. Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?
  1.    1000 kg
  2.    4000 kg
  3.    2000 kg
  4.    8000 kg
  5.    16000 kg
 Discuss Question
Answer: Option A. -> 1000 kg
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3086. The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be __________________?
  1.    2 metres of water column
  2.    3 metres of water column
  3.    3.5 metres of water column
  4.    4 m of water column
  5.    none of the above
 Discuss Question
Answer: Option B. -> 3 metres of water column
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3087. The centre of gravity of the volume of the liquid displaced by an immersed body is called ___________________?
  1.    centre of gravity
  2.    centre of pressure
  3.    metacentre
  4.    centre of buoyancy
  5.    centroid
 Discuss Question
Answer: Option D. -> centre of buoyancy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3088. Center of pressure on an inclined plane is___________________?
  1.    at the centroid
  2.    above the centroid
  3.    below the centroid
  4.    at metacentre
  5.    at center of pressure
 Discuss Question
Answer: Option C. -> below the centroid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3089. For a floating body to be in stable equilibrium, its metacentre should be___________________?
  1.    below the center of gravity
  2.    below the center of buoyancy
  3.    above the center of buoyancy
  4.    between e.g. and center of pressure
  5.    above the center of gravity
 Discuss Question
Answer: Option E. -> above the center of gravity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3090. The two important forces for a floating body are__________________?
  1.    buoyancy, gravity
  2.    buoyancy, pressure
  3.    buoyancy, inertial
  4.    inertial, gravity
  5.    gravity, pressure
 Discuss Question
Answer: Option A. -> buoyancy, gravity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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