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

Question : 26 [PCS (Pre) 2016]

With the rise of temperature, the viscosity of liquid

a) Decreases

b) Remains unchanged

c) Increases

d) May increase or decrease depending on nature of liquid

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Question : 27

Which of the following materials is most elastic ?

a) Lead

b) Rubber

c) Wood

d) Steel

Answer »

Question : 28 [UPPCS (Pre) 2005]

While floating in a sea what part of an iceberg is above the surface of the sea?

a) 1/10

b) 1/6

c) 1/9

d) 1/4

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Question : 29 [PSC (Pre) 2019]

Consider the following statement. If there were no phenomenon of capillarity.

1. It would be difficult to use a kerosene lamp then.
2. One would not be able to use a straw to consume a soft drink.
3. The blotting paper would fail to function.
4. The big trees that we see around would not have grown on the Earth.

Which of the following statements given above are correct?

a) Only 1, 3 and 4

b) Only 2 and 4

c) Only 1, 2 and 3

d) Only 1, 2, 3 and 4

Answer »

Question : 30

Pressure at a point inside a liquid does not depend on

a) the nature of the liquid

b) the depth of the point below the surface of the liquid

c) the acceleration due to gravity at that point

d) the shape of the containing vessel

Answer »