Explore topic-wise MCQs in Theory Machines.

This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Theory Machines knowledge and support exam preparation. Choose a topic below to get started.

1.

The portion of path of contact from the beginning of contact to the pitch point is called _______

A. arc of recess
B. arc of approach
C. path of recess
D. path of approach
Answer» D. path of approach
2.

The locus of the point of contact on two mating teeth from beginning of engagement to end of engagement is known as the _______________

A. angle of action
B. arc of contact
C. path of contact
D. line of action
Answer» B. arc of contact
3.

The radial difference between the addendum and the dedendum of the tooth is called _________

A. clearance
B. rack
C. line of action
D. line of centres
Answer» B. rack
4.

The radial depth of a tooth below the pitch circle is called _______________

A. dedendum
B. addendum
C. rack
D. line of centres
Answer» D. line of centres
5.

The circle passing through the roots of the teeth is called ________________

A. addendum
B. addendum circle
C. dedendum circle
D. rack
Answer» B. addendum circle
6.

THE_RADIAL_DEPTH_OF_A_TOOTH_BELOW_THE_PITCH_CIRCLE_IS_CALLED________________?$

A. dedendum
B. addendum
C. rack
D. line of centres
Answer» B. addendum
7.

The locus of the point of contact on two mating teeth from beginning of engagement to end of engagement is known as the _______________$

A. angle of action
B. arc of contact
C. path of contact
D. line of action
Answer» D. line of action
8.

The_radial_difference_between_the_addendum_and_the_dedendum_of_the_tooth_is_called__________$

A. clearance
B. rack
C. line of action
D. line of centres
Answer» B. rack
9.

The angle turned by the gear from the beginning to the end of engagement of a pair of teeth is called ______________

A. angle of approach
B. angle of recess
C. angle of action
D. angle of contact
Answer» E.
10.

The ratio of angle of action to the pitch angle is called ___________

A. space width
B. angle of recess
C. angle of approach
D. contact ratio
Answer» E.
11.

The locus of a point on the pitch circle from the beginning to end of engagement of two mating gears is called as ___________

A. Arc of contact
B. Path of contact
C. Path of approach
D. Arc of approach
Answer» B. Path of contact
12.

Arc of contact = ___________________ Complete the equation.

A. Path of contact / cos θ
B. Path of contact / sin θ
C. Path of contact x cos θ
D. Path of contact x sin θ
Answer» B. Path of contact / sin ‚âà√≠‚Äö√†√®
13.

The portion of the path of contact from the pitch point to the end of contact is called _________

A. arc of recess
B. arc of approach
C. path of recess
D. path of approach
Answer» D. path of approach
14.

The_portion_of_path_of_contact_from_the_beginning_of_contact_to_the_pitch_point_is_called________

A. arc of recess
B. arc of approach
C. path of recess
D. path of approach
Answer» E.
15.

The circle passing through the roots of the teeth is called _______________?

A. addendum
B. addendum circle
C. dedendum circle
D. rack
Answer» D. rack
16.

The radial height of a tooth above the pitch circle is called ____________

A. addendum
B. dedendum
C. rack
D. line of centres
Answer» B. dedendum
17.

The circle passing through the upper tips of the teeth is called _________________

A. pitch circle
B. circular pitch
C. dedendum circle
D. addendum circle
Answer» E.
18.

The ratio of pitch diameter to the number of teeth is called _________

A. module
B. addendum
C. dedendum
D. backlash
Answer» B. addendum
19.

The ratio of the number of teeth on the gear to the number of teeth on the pinion is called ______

A. velocity ratio
B. module
C. gear ratio
D. pitch point
Answer» D. pitch point
20.

The number of teeth per unit length of the pitch circle diameter is called ________________

A. diametral pitch
B. module
C. clearance
D. gear ratio
Answer» B. module
21.

The distance measured along the circumference of the pitch circle from a point on one tooth to the same point on the adjacent tooth is called ________________

A. pitch diameter
B. circular pitch
C. pitch point
D. line of centres
Answer» C. pitch point
22.

The smaller and generally the driving gear of a pair of mated gears is called _________

A. pitch
B. module
C. rack
D. pinion
Answer» E.