physical properties of materials - Category wise Question and Answer Practice Test with Solutions

physical properties of materials PRACTICE TEST [2 - EXERCISES]

set 1

set 2

Question : 1 [UPPCS (Pre) 2017]

The size of the Respirable Suspended Particulate Matter (R.S.P.M.) in air is

a) more than 6mm (micron)

b) more than 5mm (micron)

c) more than 7mm (micron)

d) less than 5mm (micron)

Answer: (d)

Question : 2 [UP (Pre) 2004]

When a ship enters a sea from a river, what happens?

a) It remains at the same level

b) It sinks a little

c) It rises a little

d) It immersed in the bottom of the sea

Answer: (c)

Question : 3

Paint-gun is based on

a) Archemedes’ principle

b) Bernoulli’s theorem

c) Boyle’s law

d) Newton’s laws of motion

Answer: (b)

Question : 4

An egg when placed in ordinary water sinks but floats when placed in brine. This is because

a) density of brine is equal to that of ordinary water

b) density of brine is less than that of ordinary water

c) density of brine is greater than that of ordinary water

d) None of these

Answer: (c)

Brine due to its high density exerts an upthrust which can balance the weight of the egg.

Question : 5 [IAS (Pre) 1996]

When an air bubble at the bottom of lake rises to the top, it will

a) Decreased in size

b) Maintain its size

c) Increased in size

d) Flatten into a disc like shape

Answer: (c)

IMPORTANT general science mcq EXERCISES
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