Applied Mechanics and Graphic Statics MCQs

Question 1

Power can be expressed as

Accepted Answer

$$\frac{{{	ext{Work}}}}{{{	ext{Time}}}}$$

Answer

$$\frac{{{	ext{Work}}}}{{{	ext{Energy}}}}$$

Answer

$${	ext{Work}} 	imes {	ext{Time}}$$

Answer

$$\frac{{{	ext{Work}}}}{{{	ext{Distance}}}}$$

Question 2

The ratio of the reactions RA and RB of a simply supported beam shown in below figure is

Accepted Answer

1

Answer

0.5

Answer

0.4

Answer

0.67

Question 3

The reaction at the support B of the beam shown in below figure is

Accepted Answer

8.5 t

Answer

1.6 t

Answer

9.6 t

Answer

0.5 t

Question 4

The reaction at the support D of the continuous beam ABCD, hinged at two points shown in below figure is

Accepted Answer

1.6 t ↓

Answer

1.6 t ↑

Answer

0.5 t ↑

Answer

0.5 t ↓

Question 5

The reaction at the central support B of the beam ABC hinged at D shown in below figure is

Accepted Answer

5.8 t

Answer

2 t

Answer

0.2 t

Answer

3.5 t

Question 6

The reaction at the support ‘A’ of the beam shown in below figure is

Accepted Answer

2 t

Answer

5.8 t

Answer

0.2 t

Answer

3.5 t

Question 7

The load shared by the member BC of the structure shown in below figure is

Accepted Answer

4 t

Answer

23 t

Answer

32 t

Answer

3 t

Question 8

$$\omega $$ rad/sec is the angular velocity of a crank whose radius is r. If it makes $${	heta ^ \circ }$$ with inner dead centre and obliquity of the connecting rod $$l$$ is $$\varphi $$, the velocity v of the piston, is given by the equation

Accepted Answer

$$\omega \left( {l\sin\varphi + {	ext{r}}\cos \varphi 	an 	heta } ight)$$

Answer

$${\omega ^2}\left( {l\cos \varphi + {	ext{r}}\sin \varphi 	an 	heta } ight)$$

Answer

$${\omega ^2}\left( {l\sin\varphi + {	ext{r}}\cos \varphi 	an 	heta } ight)$$

Answer

$${\omega ^2}\left( {l\sin\varphi - {	ext{r}}\cos 	heta 	an \varphi } ight)$$

Question 9

The unit of rotational inertia of a body in C.G.S system is

Accepted Answer

gm.cm2

Answer

cm4

Answer

kg.cm2

Answer

gm.cm3