To make a worm drive reversible, it is necessary to increase

Q.

To make a worm drive reversible, it is necessary to increase

A. Center distance

B. Worm diameter factor

C. Number of starts

D. Reduction ratio

Answer & Explanation

Answer : Option: C

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Q.

In spur gears, the circle on which the involute is generated is called the

A. Pitch circle

B. Clearance circle

C. Base circle

D. Addendum circle

Answer & Explanation

Q.

If reduction ratio of about 50 is required in a gear drive, then the most appropriate gearing would be

A. Spur gears

B. Bevel gears

C. Double helical gears

D. Worm and worm wheel

Answer & Explanation

Q.

The distance between two parallel shafts is 20 mm and they are connected by an Oldham’s coupling. The driving shaft revolves at 180 rpm. What will be the maximum speed of sliding of the tongue of the intermediate piece along its groove?

A. 0.575 m/s

B. 0.454 m/s

C. 0.376 m/s

D. Indeterminate

Answer & Explanation

Q.

In a flat belt drive the belt can be subjected to a maximum tension T and centrifugal tension Tc. What is the condition for transmission of maximum power?

A. T = Tc

B. T =√3Tc

C. T = 2Tc

D. T = 3Tc

Answer & Explanation

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To make a worm drive reversible, it is necessary to increase

Q. To make a worm drive reversible, it is necessary to increase

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More Questions Theory of Machines:

Q. In spur gears, the circle on which the involute is generated is called the

Q. If reduction ratio of about 50 is required in a gear drive, then the most appropriate gearing would be

Q. The distance between two parallel shafts is 20 mm and they are connected by an Oldham’s coupling. The driving shaft revolves at 180 rpm. What will be the maximum speed of sliding of the tongue of the intermediate piece along its groove?

Q. In a flat belt drive the belt can be subjected to a maximum tension T and centrifugal tension Tc. What is the condition for transmission of maximum power?

Q.

To make a worm drive reversible, it is necessary to increase

Q.

In spur gears, the circle on which the involute is generated is called the

Q.

If reduction ratio of about 50 is required in a gear drive, then the most appropriate gearing would be

Q.

The distance between two parallel shafts is 20 mm and they are connected by an Oldham’s coupling. The driving shaft revolves at 180 rpm. What will be the maximum speed of sliding of the tongue of the intermediate piece along its groove?

Q.

In a flat belt drive the belt can be subjected to a maximum tension T and centrifugal tension Tc. What is the condition for transmission of maximum power?