Mechanical Engineering Mcqs
Dimensions of surface tension are___________________?

A. Mll°t2
B. Mll°tx
C. Mll r2
D. Mll2t2

Surface tension__________________?

A. Acts in the plane of the interface normal to any line in the surface
B. Is also known as capillarity
C. Is a function of the curvature of the interface
D. Decreases with fall in temperature

A balloon lifting in air follows the following principle_____________________?

A. Law of gravitation
B. Archimedes principle
C. Principle of buoyancy
D. All of the above

A fluid in equilibrium can’t sustain____________________?

A. Tensile stress
B. Compressive stress
C. Shear stress
D. Bending stress

The bulk modulus of elasticity with increase in pressure__________________?

A. Increases
B. Decreases
C. Remains constant
D. Increases first up to certain limit and then decreases

A perfect gas____________________?

A. has constant viscosity
B. has zero viscosity
C. is in compressible
D. is of theoretical interest