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Mcqs
Question & Answer
Q:

The condition which must be fulfilled by two gear tooth profiles to maintain a constant angular velocity ratio between them is called __________________

A) arc of contact B) path of contact
C) law of gearing D) interference
 

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Category: Mechanical Engineering MCQs
Sub Category: Theory of Machines Mcqs

214
Related Questions
Q:

To avoid interference what is the maximum length of the path of approach?

Q:

Two gears in a mesh have 45 teeth each and the module is 5 mm. The pressure angle is given to be ? = 15°. The addendum is equal to 1 module. Find the path of contact.

Q:

The pressure angle of two gears in a mesh is ? = 20°. The gear ratio is 3 and the number of teeth on the pinion is 20. The module is given to be 8 mm. The addendum is one module. Find the path of contact of these two gears.

Q:

The pressure angle of two gears in a mesh is ? = 25°. The number of teeth on the pinion is 25 and the number of teeth on the gear is 70. The module is given to be 10 mm. The addendum is 1.1 times the module. Find the path of approach and path of contact of these gears.

Q:

The pressure angle of two gears in a mesh is ? = 15°. The number of teeth on the larger gear is 50. The module is 4 mm. The addendum is equal to be 1.25 module. Find the path of approach of these gears.

Q:

The pressure angle of two gears in a mesh is ? = 35°. The number of teeth on the pinion is 20. The module is 10 mm and the addendum is 1 module. Find the path of recess of these gears.

Q:

The angular velocity of the pinion is 25 rad/s and that of the gear is 10 rad/s. The path of approach is equal to 15 mm. Find the velocity of sliding at the beginning of contact.

Q:

The angular velocity of the pinion is 40 rad/s and that of the gear is 12 rad/s. The path of recess is equal to 16 mm. Find the velocity of sliding at the end of the contact.

Q:

The angular velocity of the pinion is 100 rpm and that of the gear is 30 rpm. The path of recess is equal to 50 mm and the path of contact = 100 mm. Find the velocity of sliding at the beginning of the contact.

Q:

The angular velocity of the pinion is 200 rpm and that of the gear is 50 rpm. The maximum addendum radius of the larger wheel is 85 mm and the radius of the gear is equal to 75 mm. The pressure angle between the gears is equal to 30°. Find the velocity of sliding at the beginning of the contact.