Applied Mechanics and Graphic Statics MCQs

Question 1

A satellite moves in its orbit around the earth due to

Accepted Answer

Centripetal force

Answer

Gravitational force

Answer

Centrifugal force

Answer

None of these

Question 2

A satellite goes on moving along its orbit round the earth due to

Accepted Answer

Centrifugal force

Answer

Gravitational force

Answer

Centripetal force

Answer

None of these

Question 3

A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be

Accepted Answer

0.05 m/sec

Answer

0.01 m/sec

Answer

1.00 m/sec

Answer

1.5 m/see

Question 4

Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction.The speeds of the objects are:

Accepted Answer

3 m/sec and 2 m/sec

Answer

2 m/sec and 2 m/sec

Answer

3 m/sec and 3 m/sec

Answer

4 m/sec and 6 m/sec

Question 5

Periodic time of a particle moving with simple harmonic motion is the time taken by the particle for

Accepted Answer

Complete oscillation

Answer

Half oscillation

Answer

Quarter oscillation

Answer

None of these

Question 6

If a particle moves with a uniform angular velocity $$\omega $$ radians/sec along the circumference of a circle of radius r, the equation for the velocity of the particle, is

Accepted Answer

$${	ext{v}} = \omega \sqrt {{{	ext{r}}^2} - {{	ext{y}}^2}} $$

Answer

$${	ext{v}} = \omega \sqrt {{{	ext{y}}^2} - {{	ext{r}}^2}} $$

Answer

$$\overline {	ext{y}} = \omega \sqrt {{	ext{y}} - {	ext{r}}} $$

Answer

$${	ext{v}} = \omega \sqrt {{{	ext{r}}^2} + {{	ext{y}}^2}} $$

Question 7

A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in

Accepted Answer

10 sec

Answer

5 sec

Answer

8 sec

Answer

20 sec

Question 8

A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be

Accepted Answer

$$\sqrt {\frac{{{	ext{gra}}}}{{	ext{h}}}} $$

Answer

$$\frac{{{	ext{gra}}}}{{	ext{h}}}$$

Answer

$$oot 3 \of {\frac{{{	ext{gra}}}}{{	ext{h}}}} $$

Answer

$$oot 4 \of {\frac{{{	ext{gra}}}}{{	ext{h}}}} $$

Question 9

The unit of force in C.G.S. system of units, is called

Accepted Answer

Dyne

Answer

Newton

Answer

Kg

Answer

All the above