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: Mohr’s circle is used to determine
A) Shear and normal stresses
B) Torque
C) Stress concentration
D) Moments
Q: Euler’s formula is used to calculate
A) Stress
B) Buckling load
C) Bending moment
D) Heat loss
Q: Welding process involving non-consumable electrode is
A) Resistance welding
B) MIG
C) TIG
D) Arc welding
Q: In reciprocating compressors, clearance volume is necessary to
A) Prevent fluid leakage
B) Avoid piston striking
C) Reduce friction
D) Avoid knocking
Q: The main function of lubricating oil is to
A) Increase temperature
B) Clean components
C) Decrease power
D) Reduce wear