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Theory-of-machines Questions Set 34:

Quiz Mode

Which of the following is an example of a Machine?

Car

Bridge

Frame

Buildings

Solution:

Which of the following is an example of a Structure?

Car

Bridge

Lathe

None of the above

Solution:

For a four-bar linkage in toggle position, the value of mechanical advantage is

0.0

0.5

Infinity

1.0

Solution:

Which of the following is an example of Higher pair?

Cam and follower

Piston reciprocating in a cylinder

Shaft rotating in a bearing

None of the above

Solution:

A shaft under a flywheel has a static deflection of 5 mm. What is the critical speed in radians per second? (If g = 10 m/s2) ( Answer up to 2 decimals)

Solution:

Select the correct option for a flexible link.

They do not undergo any deformation

They undergo partial deformation

They undergo complete deformation

None of the above

Solution:

Select the correct statement for Machine and Structure

In a Machine, there is no relative motion between its member.

In Structure, there is a relative motion.

Both options 1 and 2

None of the above

Solution:

What could be the correct option for defining Machine or Structure?

A machine transforms available energy into useful work.

A structure transforms available energy into useful work.

Both option 1 and 2

None of the above

Solution:

What will be the correct option for members in Machine and Structure?

In a machine, members are meant to transmit motion and forces.

In a structure, members are meant to take up loads only.

Both options 1 and 2

None of the above

Solution:

A museum's double-acting steam engine develops 85 kW at 280 r.p.m. It is found that the maximum fluctuation of energy is 25 percent of the work done per cycle. The minimum and maximum are not to vary more than 0.5 percent on either side of the mean speed. Given that the radius of gyration is 0.7 m, find the mass of the flywheel needed.

270.61 kg

100 kg

541.23 kg

1082.46 kg

Theory-of-machines Questions Set 34:

Which of the following is an example of a Machine?

Solution:

Which of the following is an example of a Structure?

Solution:

For a four-bar linkage in toggle position, the value of mechanical advantage is

Solution:

Which of the following is an example of Higher pair?

Solution:

A shaft under a flywheel has a static deflection of 5 mm. What is the critical speed in radians per second? (If g = 10 m/s2) ( Answer up to 2 decimals)

Solution:

Select the correct option for a flexible link.

Solution:

Select the correct statement for Machine and Structure

Solution:

What could be the correct option for defining Machine or Structure?

Solution:

What will be the correct option for members in Machine and Structure?

Solution:

Solution:

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