Metacentric height is given as the distance between_______________?
(A) the center of gravity of the body andthe meta center
(B) the center of gravity of the body and the center of buoyancy
(C) the center of gravity of the body and the center of pressure
(D) center of buoyancy and metacentre
(D) none of the above
Poise is the unit of________________?
(A) surface tension
(B) capillarity
(C) viscosity
(D) shear stress in fluids
(D) buoyancy
The resultant upward pressure of the fluid on an immersed body is called__________________?
(A) upthrust
(B) buoyancy
(C) center of pressure
(D) all the above are correct
(D) none of above is correct
The conditions for the stable equilibrium of a floating body are_______________?
(A) the meta-center should lie above the center of gravity
(B) the center of buoyancy and the center of gravity must lie on the same vertical line
(C) a righting couple should be formed
(D) all the above are correct
(D) none of the above is correct
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____________________?
(A) Buoyancy
(B) Equilibrium of a floating body
(C) Archimedes’ principle
(D) Bernoulli’s theorem
(D) Metacentric principle
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as____________________?
(A) meta center
(B) center of pressure
(C) center of buoyancy
(D) center of gravity
(D) none of the above
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are_________________?
(A) less
(B) more
(C) equal
(D) less at low temperature and more at high temperature
(D) there is no such criterion
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__________________?
(A) increase
(B) decrease
(C) remain same
(D) increase/decrease depending on depth of immersion
(D) unpredictable
A pressure of 25 m of head of water is equal to________________?
(A) 25 kN/m2
(B) 245 kN/m2
(C) 2500 kN/m2
(D) 2.5kN/m2
(D) 12.5 kN/m2
Capillary action is due to the__________________?
(A) surface tension
(B) cohesion of the liquid
(C) adhesion of the liquid molecules and the molecules on the surface of a solid
(D) all of the above
(D) none of the above