Practice Physical properties of materials - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Consider the figure of a fountain with four holes, given below.Which one of the holes in the fountain will throw the water farthest?

physical properties of materials question answer 44

(a)

(b)

(c)

(d)


Q-2)   The load verses elongation graph for four wires is shown. The thinnest wire is

physics properties of matter mcq question answer 23

(a)

(b)

(c)

(d)


Q-3)   At which temperature density of water is maximum?

(a)

(b)

(c)

(d)


Q-4)   The density of water will reach its maximum value at the temperature of

(a)

(b)

(c)

(d)


Q-5)   While floating in a sea what part of an iceberg is above the surface of the sea?

(a)

(b)

(c)

(d)


Q-6)   The maximum density of water is at

(a)

(b)

(c)

(d)


Q-7)   Mobiles and Automobiles have brought about a revolution in the social life of Indians, especially in the rural, in terms of
  1. Mobility of the people
  2. Connectivity of the people
  3. Sensitivity of the people
Select the correct answer from the code given below.

(a)

(b)

(c)

(d)


Q-8)   A sudden fall in barometer reading indicates that the weather will be

(a)

(b)

(c)

(d)


Q-9)   The separation of cream from milk by churning is due to

(a)

(b)

(c)

(d)


Q-10)   A man is sitting in a boat which is floating in pond. If the man drinks some water from the pond, the level of water in the pond will

(a)

(b)

(c)

(d)


Q-11)   Hydraulic lift is based on the principle of

(a)

(b)

(c)

(d)

Explanation:

Hydraulic lift is based on the principle of Pascal’s law.


Q-12)   A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on

(a)

(b)

(c)

(d)

Explanation:

Volume per second = A$√{2gh}$


Q-13)   A boy carries a fish in one hand and a bucket of water in the other hand. If he places the fish in the bucket, the weight now carried by him.

(a)

(b)

(c)

(d)


Q-14)   A and B are two wires. The radius of A is twice that of B. They are stretched by the same load. Then the stress on B is

(a)

(b)

(c)

(d)

Explanation:

$Stress = \text"force"/\text"Area" ∴ Stress ∝ 1/{πr^2}$

$S_B/S_A = (r_A/r_B)^2 = (2)^2 ⇒ S_B = 4S_A$


Q-15)   Two soap bubbles are held by a tube. What will happen ?

(a)

(b)

(c)

(d)

Explanation:

The excess pressure inside a soap bubble is given by,p = ${4T}/r$ As the excess pressure is less in a bigger bubble means the pressure is more inside the bigger bubble.

So, air travels from bigger bubbles to smaller ones.


Q-16)   Elastomers are the materials which

(a)

(b)

(c)

(d)

Explanation:

Elastomers do not obey Hooke’s law.


Q-17)   Pressure inside a soap bubble is

(a)

(b)

(c)

(d)


Q-18)   A body floats in a liquid containing in a beaker. The whole system as shown in Fig. is falling under gravity. The upthrust on the body due to liquid is

physics properties of matter mcq question answer 11

(a)

(b)

(c)

(d)


Q-19)   While travelling by plane, the ink of the pen starts to come out

(a)

(b)

(c)

(d)


Q-20)   A drop of oil is placed on the surface of water. Which of the following statements is correct?

(a)

(b)

(c)

(d)

Explanation:

The surface tension of oil is less than that of water, so the oil spreads as a thin layer.