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UPPSC AE (CE) Quiz 9

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Question 1

When the friction comes into action between the two running parts of a machine, it results in the production of _____.

Question 2

A block of 40N is lying on a horizontal plane. It just begins to move when the force applied is 20N. What is the angle of friction(degrees)?

Question 3

Friction force is due to

1) Interlocking of surface particles between two bodies

2) Interlocking of surface particles between a body and a surface plane.

Question 4

The frictional force depends on

1) Roughness/smoothness of the surface

2) Area of contact between the two surface

3) Poisson's ratio of surface material.

Question 5

Table 1 contain basic terms of mechanics and Table 2 Contain their definition. Match the following.

Question 6

A body of mass 500g has acceleration of 10cm/s². The value of force will be

Question 7

Which of the following theorem is used for the equilibrium of the body applied with three concurrent coplanar forces

Question 8

Match the following with list I (Type of supports) and List-II (Types of Reactions)

List-I

A. Fixed support

B. Hinge support

C. Roller support

D. Free support

List-II

(1) 0

(2) 1

(3) 2

(4) 3

Question 9

A mass of 3 kg moving with a velocity of 4 m/s hits a stationary roller of mass 12 kg. After the collision, mass sticks to roller and roller starts to move. What will be its angular velocity if radius is 1 m?

Question 10

During Inelastic collision of two particles, which one of the following is conserved?

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