Practice Simple Machine RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. Simple Machine is an important Physics topic that has been introduced in 2026 in the NCERT Class 9 Science curriculum under the Work and Energy chapter, making it useful for students and competitive-exam aspirants to understand the basic concepts of machines and their applications.
This Simple Machine RRB PYQ collection covers important concepts such as mechanical advantage, velocity ratio, efficiency, load, effort, lever, pulley, inclined plane, wheel and axle, and basic machine calculations. Practicing these questions can help you revise the fundamentals and understand how Simple Machine concepts are applied in Railway examinations.
Whether you are preparing for RRB NTPC Simple Machine PYQ, RRB Group D Simple Machine PYQ, RRB JE Simple Machine PYQ, RRB ALP Simple Machine PYQ, or RRB Technician Simple Machine PYQ, practicing previous year questions can help you strengthen your Physics fundamentals and become familiar with calculation-based and concept-based questions.
Start practicing Simple Machine RRB PYQs and strengthen your Railway Physics preparation.
51
A bottle opener is commonly a:
✓ Answer:BSecond-class lever
A bottle opener has the bottle cap (load) between the contact point acting as fulcrum and the applied effort, so it is a second-class lever.
52
Which statement is correct for an ideal pulley system?
✓ Answer:BInput work equals output work
For an ideal system without friction, conservation of energy gives input work = output work.
53
A 1000 N load is moved up an ideal inclined plane with MA = 5. The required effort is:
✓ Answer:B200 N
E = L/MA = 1000/5 = 200 N.
54
A machine has input work of 2000 J and useful output work of 1500 J. Its efficiency is:
✓ Answer:C75%
Efficiency = (1500/2000) × 100 = 75%.
55
A human forearm lifting a weight with the elbow as pivot is an example of:
✓ Answer:CThird-class lever
The elbow is the fulcrum, the muscle supplies effort between the elbow and the hand-held load. Hence it is a third-class lever.
56
If three supporting rope segments hold a load in an ideal pulley system, the ideal mechanical advantage is:
✓ Answer:C3
For an ideal block-and-tackle arrangement, MA equals the number of rope segments supporting the movable load. Thus MA = 3.
57
Which of the following is an example of an inclined plane?
✓ Answer:ARamp
A ramp is a sloping surface and therefore an inclined plane.
58
A machine has an efficiency of 60%. If 5000 J of work is supplied, useful output work is:
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