Statistics Test

Result

Statistics Test - 16

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

Three coplanar forces each of weight 10 kilogram are acting at a particle. If their line of actions make same angle, then their resultant force will be

A
Zero

B
5√2

C
10√2

D
20

Solution
Question 2
4 / -1

A circular ring having radius 3 cm hanged 4 cm above the centre of ring by four string on equal interval of circumference. If angle between two consecutivestrings is θ, then cos θ will be

A

B

C

D
None of these

Solution
Question 3
4 / -1

A uniform triangular lamina whose sides are of length 3 cm, 4 cm and 5 cm, is suspended by a string tied at the middle point of the largest side. In equilibrium position the inclination of this side to the vertical is

A

B

C

D
None of these

Solution
Question 4
4 / -1

A uniform beam of length 2a rests in equilibrium against a smooth vertical plane and over a smooth peg at a distance h from the plane. If θ be the inclination of the beam to the vertical, then sin³θ is

A

B

C

D

Solution
Question 5
4 / -1

A rough plane is inclined at an angle α to the horizon. A body is just to slide due to its own weight. The angle of friction would be

A
tan^–1α

B
α

C
tan α

D
2α

Solution
Question 6
4 / -1

A particle is resting on a rough inclined plan with inclination α. The angle of friction is λ, the particle will be at rest if and only if,

A
α > λ

B
α ≥ λ

C
α ≤ λ

D
α < λ

Solution
Question 7
4 / -1

A body of weight W rests on a rough plane, whose coefficient of friction is μ (= tan λ ) which is inclined at an angle αwith the horizon. The least force required to pull the body up the plane is

A
2W sin (α + λ )

B
W sin(α + λ )

C
W sin (α – λ )

D
2W sin (α – λ )

Solution
Question 8
4 / -1

The coefficient of friction between the floor and a box weighing 1 ton if a minimum force of 600 kg is required to start the box moving is

A

B

C

D
1

Solution
Question 9
4 / -1

A body is in equilibrium on a rough inclined plane of which the coefficient of friction is (1/√3) . The angle of inclination of the plane is gradually increased. The body will be on the point of sliding downwards, when the inclination of the plane reaches

A
15°

B
30°

C
45°

D
60°

Solution
Question 10
4 / -1

A body of weight 40 kg rests on a rough horizontal plane, whose coefficient of friction is 0.25. The least force which acting horizontally would move the body is

A
10 kg wt

B
20 kg wt

C
30 kg wt

D
40 kg wt

Solution