Mechanical Engineering MCQs

2075 MCQs  (Page 170 of 208)

An open vessel of water is accelerated up an inclined plane. The free water surface will__________________?
A. Be horizontal
B. Make an angle in direction of inclination of inclined plane
C. Make an angle in opposite direction to inclination of inclined plane
D. Any one of above is possible
For a floating body to be in equilibrium_____________________?
A. Meta centre should be above e.g.
B. Centre of buoyancy and e.g. must lie on same vertical plane
C. A righting couple should be formed
D. All of the above
Ratio of inertia force to elastic force is known as__________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
Ratio of inertia force to surface Jension is known as ___________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
The center of pressure of a surface subjected to fluid pressure is the point_______________?
A. On the surface at which resultant pres-sure acts
B. On the surface at which gravitational force acis
C. At which all hydraulic forces meet
D. Similar to metacentre