Mechanical Engineering MCQs
Mechanical Engineering MCQs are a crucial resource for students and job seekers preparing for competitive tests in Pakistan. This section features MCQs from all major areas including thermodynamics, fluid mechanics, machine design, manufacturing processes, engineering materials, and mechanics of solids. These questions are crafted to meet the standards of exams like PPSC, FPSC, NTS, and university entry or semester tests. Each MCQ is aimed at testing your fundamental understanding and problem-solving ability, making them perfect for both fresh graduates and experienced professionals. With a wide range of topics, this category ensures a comprehensive practice session for anyone looking to ace Mechanical Engineering exams.
Q: Crankshaft converts
A) Heat to work
B) Rotary to linear motion
C) Linear to rotary motion
D) Work to heat
Q: Brinell hardness test uses
A) A steel ball
B) A diamond pyramid
C) A flat punch
D) An indenter
Q: Shear force in a beam is maximum at
A) Mid-span
B) Neutral axis
C) Free end
D) Fixed end
Q: Tensile test is used to determine
A) Elongation
B) Fracture toughness
C) Modulus of rigidity
D) Impact strength
Q: In IC engines, knocking occurs due to
A) Early ignition
B) Late ignition
C) Carburetion
D) Detonation
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