Bulk Matter - Online Test (12-12-2016)

# Bulk Matter - Online Test (12-12-2016)

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## 30 Questions MCQ Test | Bulk Matter - Online Test (12-12-2016)

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Bulk Matter - Online Test (12-12-2016) - Question 1

### Bernoulli's principle states that, for streamline motion of an incompressible non-viscous fluid:

Bulk Matter - Online Test (12-12-2016) - Question 2

### When a gas or a liquid is subjected to an increased pressure, substance contracts, bulk strain is defined as

Bulk Matter - Online Test (12-12-2016) - Question 3

### One litre of a certain fluid weighs 8N. What is its specific volume?

Bulk Matter - Online Test (12-12-2016) - Question 4

When is a liquid said to be not in a boiling or vaporized state?

Bulk Matter - Online Test (12-12-2016) - Question 5

When the angle between surface tension with the liquid (θ) is greater than 90o, the liquid becomes

Bulk Matter - Online Test (12-12-2016) - Question 6

Newton's law of viscosity states that

Bulk Matter - Online Test (12-12-2016) - Question 7

Bernoulli's principle shows that, at points in a moving fluid where potential energy change is very small

Bulk Matter - Online Test (12-12-2016) - Question 8

The location of the centre of pressure over a surface immersed in a liquid is

Bulk Matter - Online Test (12-12-2016) - Question 9

If fluid has constant density then it is said to be

Bulk Matter - Online Test (12-12-2016) - Question 10

According to equation of continuity product of area of pipe and speed of fluid along pipe is

Bulk Matter - Online Test (12-12-2016) - Question 11

Constant of equation of continuity is known as

Bulk Matter - Online Test (12-12-2016) - Question 12

When net force acting on a droplet becomes zero then it falls with

Bulk Matter - Online Test (12-12-2016) - Question 13

A wire of length L and cross section area A is made of a material of Young's modulus Y. If the wire is stretched by an amount x, the work done is

Bulk Matter - Online Test (12-12-2016) - Question 14

For elastomers, stress and strain variation is _________ within elastic limit.

Bulk Matter - Online Test (12-12-2016) - Question 15

The area occupied below the stress-strain graph and above strain axis gives the value of

Bulk Matter - Online Test (12-12-2016) - Question 16

A wire whose cross-section is 4 mm2 is stretched by 0.1 mm by a certain weight. How far will a wire of the same material and length be stretched, if its cross-sectional area is 8 mm2 and the same weight is attached?

Bulk Matter - Online Test (12-12-2016) - Question 17

In Hooke's law, the constant of proportionality signifies

Bulk Matter - Online Test (12-12-2016) - Question 18

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is

Bulk Matter - Online Test (12-12-2016) - Question 19

How does the modulus of elasticity change with temperature?

Bulk Matter - Online Test (12-12-2016) - Question 20

A body is said to be perfectly elastic if

Bulk Matter - Online Test (12-12-2016) - Question 21

Which of the following factors can bring about a change in the elastic properties of a material?

Bulk Matter - Online Test (12-12-2016) - Question 22

The modulus of elasticity of steel is greater than that of rubber because under the same stress

Bulk Matter - Online Test (12-12-2016) - Question 23

A uniform rod of mass m, length L, area of cross-section A and Young's modulus Y hangs from a ceiling. Its elongation under its own weight will be

Bulk Matter - Online Test (12-12-2016) - Question 24

Materials that show very small plastic range beyond elastic limit are called

Bulk Matter - Online Test (12-12-2016) - Question 25

Velocity of efflux flowing through an orifice at height h below the free surface of liquid is given by

Bulk Matter - Online Test (12-12-2016) - Question 26

A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250 m2. Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be (Pair = 1.2 kg/m3)

Bulk Matter - Online Test (12-12-2016) - Question 27

A flat plate is separated from a large plate by a layer of glycerine of thickness 3 X 10-3m.  If the co-efficient of viscocity of glycerine is 2 Nsm2, what is the force required to keep the plate moving with a velocity of 6 X 10-2 m/s. Area of the plate is 4.8 X 10-3m2.

Bulk Matter - Online Test (12-12-2016) - Question 28

Which of the following assumptions is not considered while arriving at Stoke's law.

Bulk Matter - Online Test (12-12-2016) - Question 29

Find the Reynold's number for the liquid flowing in a pipe of diameter 1.2 cm with average velocity 15 cm/s.  Take   = 0.01 poise and  = 0.9 gm/cc.

Bulk Matter - Online Test (12-12-2016) - Question 30

A student is performing a test experiment in his laboratory. He takes glycerine, buttermilk and water in three beakers and stirs them thoroughly. He then places the beaker on the table simultaneously. Which of the following will be observed?

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