Question 1

If radii of 2 circles are in the ratio 3:2, then their areas are in the ratio

Accepted Answer

9:4

Answer

3:2

Answer

4:9

Answer

2:3

Question 2

When a tensile force P acts on a body, the change in its length is given by

Accepted Answer

PL/AE

Answer

AE/PL

Answer

PA/EL

Answer

PE/AL

Question 3

Which of the following has no dimesion

Accepted Answer

specific gravity

Answer

specific volume

Answer

specific heat

Answer

specific weight

Question 4

The area of a sector of a circle with central angle 108$^o$ and arc length 6 $\pi$ is

Accepted Answer

30 $\pi$

Answer

10$\pi$

Answer

20 $\pi$

Answer

50 $\pi$

Question 5

Angle of friction is the

Accepted Answer

Angle between the normal reaction, and the resultant of normal reaction and limiting friction

Answer

Ratio of limiting friction and normal reaction

Answer

ratio of minimum friction force to the frictional force acting when the body is just about to move

Answer

ratio of static and dynamic friction

Question 6

The sides of a triangle ABC is 5,6,7 units, then its area is ____ square units

Accepted Answer

6 √6

Answer

3√6

Answer

4√6

Answer

5√6

Question 7

An interior angle of a regular pentagon is

Accepted Answer

108$^o$

Answer

120$^o$

Answer

none of the given

Answer

110$^o$

Question 8

Density of water is maximum at

Accepted Answer

4$^o$C

Answer

100$^o$C

Answer

0$^o$C

Answer

96$^o$C

Question 9

Bar is the unit of

Accepted Answer

pressure

Answer

length

Answer

power

Answer

energy

Question 10

In ideal machines

Accepted Answer

MA=VR

Answer

MA<VR

Answer

MA>VR

Answer

MA=1

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