Fundamentals of Engineering (FE) Exam
Mechanical Focus Practice Exam Questions
And Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the SI unit of force?
A. Joule
B. Pascal
C. Newton
D. Watt
Answer: C. Newton
Rationale: The Newton (N) is defined as the force required to
accelerate a 1 kg mass at 1 m/s², making it the standard SI unit of
force.
2. Which law states that energy cannot be created or destroyed?
A. Second Law of Thermodynamics
B. Law of Conservation of Energy
C. Newton’s Second Law
,D. Boyle’s Law
Answer: B. Law of Conservation of Energy
Rationale: This law states that energy can only change forms but the
total energy in a closed system remains constant.
3. What is the derivative of displacement with respect to time?
A. Acceleration
B. Velocity
C. Jerk
D. Momentum
Answer: B. Velocity
Rationale: Velocity is defined as the rate of change of displacement
with respect to time.
4. What is the main function of a flywheel?
A. Increase friction
B. Store rotational energy
C. Reduce torque
D. Increase pressure
Answer: B. Store rotational energy
,Rationale: Flywheels store energy in rotational form and help smooth
out fluctuations in mechanical systems.
5. Which material property describes resistance to deformation?
A. Toughness
B. Hardness
C. Elasticity
D. Ductility
Answer: C. Elasticity
Rationale: Elasticity is the ability of a material to resist deformation
and return to its original shape after load removal.
6. What is the unit of power?
A. Joule
B. Watt
C. Pascal
D. Newton
Answer: B. Watt
Rationale: Power is defined as energy per unit time, measured in
watts (J/s).
, 7. Which thermodynamic process occurs at constant pressure?
A. Isochoric
B. Isothermal
C. Isobaric
D. Adiabatic
Answer: C. Isobaric
Rationale: An isobaric process maintains constant pressure
throughout the system.
8. What does Young’s modulus measure?
A. Strength
B. Stiffness
C. Toughness
D. Hardness
Answer: B. Stiffness
Rationale: Young’s modulus is the ratio of stress to strain in the elastic
region and indicates material stiffness.
9. Which type of stress acts perpendicular to a surface?
A. Shear stress
B. Normal stress
Mechanical Focus Practice Exam Questions
And Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the SI unit of force?
A. Joule
B. Pascal
C. Newton
D. Watt
Answer: C. Newton
Rationale: The Newton (N) is defined as the force required to
accelerate a 1 kg mass at 1 m/s², making it the standard SI unit of
force.
2. Which law states that energy cannot be created or destroyed?
A. Second Law of Thermodynamics
B. Law of Conservation of Energy
C. Newton’s Second Law
,D. Boyle’s Law
Answer: B. Law of Conservation of Energy
Rationale: This law states that energy can only change forms but the
total energy in a closed system remains constant.
3. What is the derivative of displacement with respect to time?
A. Acceleration
B. Velocity
C. Jerk
D. Momentum
Answer: B. Velocity
Rationale: Velocity is defined as the rate of change of displacement
with respect to time.
4. What is the main function of a flywheel?
A. Increase friction
B. Store rotational energy
C. Reduce torque
D. Increase pressure
Answer: B. Store rotational energy
,Rationale: Flywheels store energy in rotational form and help smooth
out fluctuations in mechanical systems.
5. Which material property describes resistance to deformation?
A. Toughness
B. Hardness
C. Elasticity
D. Ductility
Answer: C. Elasticity
Rationale: Elasticity is the ability of a material to resist deformation
and return to its original shape after load removal.
6. What is the unit of power?
A. Joule
B. Watt
C. Pascal
D. Newton
Answer: B. Watt
Rationale: Power is defined as energy per unit time, measured in
watts (J/s).
, 7. Which thermodynamic process occurs at constant pressure?
A. Isochoric
B. Isothermal
C. Isobaric
D. Adiabatic
Answer: C. Isobaric
Rationale: An isobaric process maintains constant pressure
throughout the system.
8. What does Young’s modulus measure?
A. Strength
B. Stiffness
C. Toughness
D. Hardness
Answer: B. Stiffness
Rationale: Young’s modulus is the ratio of stress to strain in the elastic
region and indicates material stiffness.
9. Which type of stress acts perpendicular to a surface?
A. Shear stress
B. Normal stress
