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MCQs

Total Questions : 1709 | Page 157 of 171 pages
Question 1561. 4-61. Kinematic viscosity is equal to________________?
  1.    dynamic viscosity/density
  2.    dynamicviscosity x density
  3.    density/dynamic viscosity
  4.    1/dynamicviscosity x density
  5.    same as dynamic viscosity
 Discuss Question
Answer: Option A. -> dynamic viscosity/density
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1562. A one dimensional flow is one which___________________?
  1.    is uniform flow
  2.    is steady uniform flow
  3.    takes place in straight lines
  4.    involves zero transverse component of flow
  5.    takes place in one dimension
 Discuss Question
Answer: Option D. -> involves zero transverse component of flow
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1563. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are_________________?
  1.    less
  2.    more
  3.    equal
  4.    less at low temperature and more at high temperature
  5.    there is no such criterion
 Discuss Question
Answer: Option B. -> more
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1564. A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will__________________?
  1.    increase
  2.    decrease
  3.    remain same
  4.    increase/decrease depending on depth of immersion
  5.    unpredictable
 Discuss Question
Answer: Option C. -> remain same
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1565. The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as____________________?
  1.    meta center
  2.    center of pressure
  3.    center of buoyancy
  4.    center of gravity
  5.    none of the above
 Discuss Question
Answer: Option B. -> center of pressure
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1566. The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?
  1.    Buoyancy
  2.    Equilibrium of a floating body
  3.    Archimedes’ principle
  4.    Bernoulli’s theorem
  5.    Metacentric principle
 Discuss Question
Answer: Option C. -> Archimedes’ principle
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1567. The conditions for the stable equilibrium of a floating body are_______________?
  1.    the meta-center should lie above the center of gravity
  2.    the center of buoyancy and the center of gravity must lie on the same vertical line
  3.    a righting couple should be formed
  4.    all the above are correct
  5.    none of the above is correct
 Discuss Question
Answer: Option D. -> all the above are correct
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1568. The resultant upward pressure of the fluid on an immersed body is called__________________?
  1.    upthrust
  2.    buoyancy
  3.    center of pressure
  4.    all the above are correct
  5.    none of above is correct
 Discuss Question
Answer: Option B. -> buoyancy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1569. Metacentric height is given as the distance between_______________?
  1.    the center of gravity of the body andthe meta center
  2.    the center of gravity of the body and the center of buoyancy
  3.    the center of gravity of the body and the center of pressure
  4.    center of buoyancy and metacentre
  5.    none of the above
 Discuss Question
Answer: Option A. -> the center of gravity of the body andthe meta center
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 1570. Poise is the unit of________________?
  1.    surface tension
  2.    capillarity
  3.    viscosity
  4.    shear stress in fluids
  5.    buoyancy
 Discuss Question
Answer: Option C. -> viscosity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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