Mechanical Engineering MCQs
Mechanical Engineering MCQs for competitive exams in Pakistan cover thermodynamics, fluid mechanics, machine design, manufacturing, and materials. Ideal for PPSC, FPSC, NTS, and university tests, they help students and professionals enhance concepts and problem-solving skills.
Q: Entropy increases in a process that is
A) Adiabatic
B) Isothermal
C) Irreversible
D) Reversible
Q: A perfect gas is characterized by
A) No molecular motion
B) Variable specific heats
C) Compressibility
D) Constant specific heats
Q: Governor in engines controls
A) Speed
B) Temperature
C) Compression
D) Fuel mixture
Q: The highest efficiency of a heat engine is achieved in
A) Carnot cycle
B) Diesel cycle
C) Otto cycle
D) Rankine cycle
Q: Flywheel in a machine is used to
A) Transfer heat
B) Absorb shock
C) Store energy
D) Reduce torque