Hydraulics & Fluid Mechanics Mcqs

Q.  Froude number is significant in____________________?

a. supersonics, as with projectile and jet propulsion
b. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
c. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
d. all of the above
e. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is____________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The angles between two forces to make their resultant a minimum and a maximum respectively are__________________?
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MCQs:  The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The following is in unstable equilibrium__________________?
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MCQs:  A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
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MCQs:  A rigid body is in a stable equilibrium if the application of any force__________________?
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MCQs:  Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The torque produced by a force depends on__________________? 1) the magnitude of the force 2) the direction of the force 3) the’point of application of the force relative to origin The correct answer is?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?
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MCQs:  A solid cylinder of mass M and radius R rolls down an inclined plane without slipping. The acceleration of center of mass of rolling cylinder is________________?
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MCQs:  A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is_____________________?
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MCQs:  If the angular distance, 0 = 2t3 – 3t2, the angular acceleration at t = 1 sec. is__________________?
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MCQs:  A particle moves in a straight line and its position is defined by the equation x = 6 t2 – t3 where t is expressed in seconds and x in meters. The maximum velocity during the motion is_________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Instantaneous center is at infinity when the angular velocity is _________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? 1) 1.0 in from the wall 2) 1.732 m from the wall 3) 1.0 m above the floor 4) 1.732 m above the floor The correct answer is?
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MCQs:  The angle of projection at which the horizontal range and maximum height of a projectile are equal to_____________________?
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MCQs:  A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in________________?
Category: Civil Engineering Mcqs,   Published by: T-Code Scripts