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Machines — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsMachines1 Mark
MCQ
Jibs, cranes and hoist are examples of ___________ .
  • A
    complex machines
  • B
    sophisticated machines
  • ✓
    block and tackle system
  • D
    robotic machines
✓

Answer

Correct option: C.
block and tackle system
(c)
block and tackle system
Explanation :
These devices use a system of pulleys and cables or chains which is classic example of a block and tackle system.

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