Free Printable SOM -SEESION 13-4TH SEM

1.

A __________ is the important machine element which rotate in order to transmit power or motion.

a)

Beam

b)

Shaft

c)

Column

d)

Struts

2.

A ___________is a moment that twists a member about its longitudinal axis.

a)

Bending

b)

Compressive force

c)

Torque

d)

None.

3.

A __________creates distortion. Shear stress on the shaft leads to its eventual rupture

a)

Torsion

b)

Bending

c)

Both

d)

None

4.

The angle at which the shaft is rotated is known ____________

a)

Polar moment of inertia

b)

Polar modulus

c)

Angle of twist

d)

None

5.

Unit of angle of twist is ___________

a)

mm

b)

N

c)

Kg

d)

Radian

6.

Unit of Torsional moment is _________-

a)

N mm

b)

N/mm

c)

Kg

d)

Radian

7.

Polar moment of inertia for a circular section is _________-

a)

$\frac{\pi d^4}{32}$

b)

$\pi d$

c)

$\frac{\pi d^2}{32}$

d)

$\frac{\pi d^4}{64}$

8.

Polar modulus of a circular section is _________

a)

$\pi d$

b)

$\frac{\pi d^3}{16}$

c)

$\frac{\pi d^2}{32}$

d)

None

9.

Polar modulus Zp =____________

a)

Ip/R

b)

Ip X R

c)

Ip - R

d)

None

10.

Polar modulus of hollow circular section is __________

a)

$\frac{\pi\left(D^4\ -\ d^4\right)}{16}$

b)

$\frac{\pi\left(D^4\ -\ d^4\right)}{16D}$

c)

$\frac{\pi D^4}{16}$

d)

None

11.

Torsional rigidity is _______________________

a)

C X Ip

b)

C/Ip

c)

C/R

d)

None

12.

Unit of power is _______________

a)

Kw

b)

Nm/s

c)

Both

d)

None

SOM -SEESION 13-4TH SEM

Total questions: 12

Worksheet time: 6mins

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