Applied Mechanics and Graphic Statics MCQs

Question 1

Power developed by a torque, is

Accepted Answer

All the above

Answer

$$2\pi {	ext{NT kg m/min}}$$

Answer

$$\frac{{2\pi {	ext{NT}}}}{{4500}}{	ext{h}}{	ext{.p}}{	ext{.}}$$

Answer

$$\frac{{2\pi {	ext{NT}}}}{{60}}{	ext{watts}}$$

Question 2

The shape of a suspended cable for a uniformly distributed load over it is

Accepted Answer

Parabolic

Answer

Circular

Answer

Catenary

Answer

Cubic parabola

Question 3

A rod AB carries three loads of 30 N, 70 N and 100 N at distances of 20 mm, 90 mm and 150 mm respectively from A. Neglecting the weight of the rod, the point at which the rod will balance is

Accepted Answer

109.5 mm from A

Answer

119.5 mm from A

Answer

125.5 mm from A

Answer

132.5 mm from A

Question 4

The member forces in a statically in determinate truss

Accepted Answer

Cannot be obtained by graphic statics

Answer

Can be obtained by graphic statics

Answer

May be obtained by graphic statics

Answer

Can be obtained by graphic statics by trial and error

Question 5

If v and $$\omega $$ are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius r, will be

Accepted Answer

$$\frac{{{{	ext{v}}^2}}}{{	ext{r}}}$$

Answer

$$\frac{{	ext{r}}}{{{{	ext{v}}^2}}}$$

Answer

$$\frac{{	ext{r}}}{{{\omega ^2}}}$$

Answer

$$\frac{{{\omega ^2}}}{{	ext{r}}}$$

Question 6

To attain the synchronous orbit, the launch of a satellite, is done from a place

Accepted Answer

On equator

Answer

On 30° latitude

Answer

On 45° latitude

Answer

On the poles

Question 7

The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

Accepted Answer

Eastward

Answer

Northward

Answer

Westward

Answer

Southward

Question 8

When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

Accepted Answer

Virtual work

Answer

Imaginary work

Answer

Negative work

Answer

None of these

Question 9

A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Accepted Answer

Horizontal component of velocity remains constant

Answer

Vertical component of velocity remains constant

Answer

Speed of the ball remains constant

Answer

Kinetic energy of the ball remains constant