SECTION: SCIENCE
31. Which one of the following is a simple machine?
(A) Sewing Machine
(B) Tractor
(C) Screw
(D) Washing Machine
Answer:
Explanation:
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32. Flowers that bloom at night are generally?
(A) Red
(B) White
(C) Yellow
(D) Pink
Answer:
Explanation:
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33. Most effective way of solid waste material disposal is to
(A) burn it
(B) dump in the river
(C) dump into an open field
(D) convert in to a compost
Answer:
Explanation:
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34. The height of a person is 1.65 m. Express it in to cm
(A) 1.65 cm
(B) 165 cm
(C) 16.5 cm
(D) 0.165 cm
Answer:
Explanation:
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35. Whenever current is passed through a conductor, it behaves like a
(A) Conductor
(B) Insulator
(C) Battery
(D) Magnet
Answer:
Explanation: