MS MS in Mechanical Engineering

Question 1

What is the first law of thermodynamics also known as?

Accepted Answer

Law of conservation of energy

Answer

Law of entropy increase

Answer

Newton's second law

Answer

The ideal gas law

Question 2

Which dimensionless number in fluid mechanics represents the ratio of inertial forces to viscous forces?

Accepted Answer

Reynolds number

Answer

Mach number

Answer

Prandtl number

Answer

Nusselt number

Question 3

What does FEA stand for in mechanical engineering analysis?

Accepted Answer

Finite Element Analysis

Answer

Fluid Energy Assessment

Answer

Fatigue Engineering Algorithm

Answer

Force Equilibrium Analysis

Question 4

Which type of stress results when equal and opposite forces act parallel to a cross-sectional surface?

Accepted Answer

Shear stress

Answer

Tensile stress

Answer

Compressive stress

Answer

Bending stress

Question 5

What is the purpose of a heat exchanger in engineering systems?

Accepted Answer

To transfer thermal energy between two fluid streams without mixing them

Answer

To convert heat directly into mechanical work

Answer

To store thermal energy for later use

Answer

To measure temperature differentials in fluids

Question 6

Which manufacturing process uses a mold and pressure to shape molten metal into a desired form?

Accepted Answer

Die casting

Answer

Extrusion

Answer

Forging

Answer

Sintering