MCQ Collection
GIKI Engineering Computing MCQs
Practice GIKI Engineering Computing questions with answers and explanations.
Choose an option to check your answer.
Correct Answer: A. 12 N·m
Explanation:
Rotational dynamics gives τ=Iα.
τ=3×4 = 12 N·m.
Choose an option to check your answer.
Correct Answer: B. 200 W
Explanation:
Power is work divided by time.
P=600/3 = 200 W.
Choose an option to check your answer.
Correct Answer: C. 20,000 J
Explanation:
Energy transferred is Pt.
1000×20 = 20,000 J.
Choose an option to check your answer.
Correct Answer: B. 20 J
Explanation:
Use W=Fd cosθ.
W=10×4×cos60° = 20 J.
Choose an option to check your answer.
Correct Answer: C. 18 J
Explanation:
Kinetic energy is ½mv².
K=½×4×9 = 18 J.
Choose an option to check your answer.
Correct Answer: D. 100 J
Explanation:
K=½mv².
K=½×2×100 = 100 J.
Choose an option to check your answer.
Correct Answer: A. 400 J
Explanation:
Potential energy change is mgh.
5×10×8 = 400 J.
Choose an option to check your answer.
Correct Answer: B. Mass multiplied by velocity
Explanation:
Linear momentum is a vector quantity p=mv.
Its direction is the direction of velocity.
Choose an option to check your answer.
Correct Answer: C. Change in momentum
Explanation:
Impulse equals force integrated over time.
For constant force, J=FΔt=Δp.
Choose an option to check your answer.
Correct Answer: D. When net external impulse is zero
Explanation:
Internal forces cancel in pairs within a system.
With no net external impulse, total momentum remains constant.
Choose an option to check your answer.
Correct Answer: A. A collision conserving both momentum and kinetic energy
Explanation:
All isolated collisions conserve momentum.
Elastic collisions also conserve total kinetic energy.
Choose an option to check your answer.
Correct Answer: B. A collision in which objects stick together
Explanation:
The objects share a common final velocity.
Momentum is conserved, but kinetic energy is not.
