Machine Kinematics Questions and Answers – Gearing

This set of Machine Kinematics Multiple Choice Questions & Answers (MCQs) focuses on “Gearing”.

1. Radial distance between the pitch circle and the top of the tooth is known as
a) pitch
b) addendum
c) base circle
d) none of the mentioned
View Answer

Answer: b
Explanation: The circle from which an involute curve is generated is known as base circle.
Radial distance between the pitch circle and the top of the tooth is known as addendum.

2. The circle from which an involute curve is generated is known as
a) pitch
b) addendum
c) base circle
d) none of the mentioned
View Answer

Answer: c
Explanation: The circle from which an involute curve is generated is known as base circle.
Radial distance between the pitch circle and the top of the tooth is known as addendum.

3. Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as
a) pitch
b) circular pitch
c) base circle
d) none of the mentioned
View Answer

Answer: b
Explanation: Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as circular pitch.
The circle from which an involute curve is generated is known as base circle.
Radial distance between the pitch circle and the top of the tooth is known as addendum.
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4. The curve formed by the point on a circle as it rolls along a straight line is known as
a) cycloid
b) addendum
c) base circle
d) none of the mentioned
View Answer

Answer: a
Explanation: Length of the arc of the pitch circle between the centres or other corresponding points of adjacent teeth is known as circular pitch.
The circle from which an involute curve is generated is known as base circle.
The curve formed by the point on a circle as it rolls along a straight line is known as cycloid.

5. That surface of the tooth which is between the pitch circle and the top of the tooth is known as
a) cycloid
b) addendum
c) face of tooth
d) none of the mentioned
View Answer

Answer: c
Explanation: The circle from which an involute curve is generated is known as base circle.
The curve formed by the point on a circle as it rolls along a straight line is known as cycloid.
That surface of the tooth which is between the pitch circle and the top of the tooth is known as face of tooth.

6. The distance between similar, equally spaced tooth surfaces, in a given direction and along a given curve or line is known as
a) pitch
b) addendum
c) base circle
d) none of the mentioned
View Answer

Answer: a
Explanation: The curve formed by the point on a circle as it rolls along a straight line is known as cycloid.
That surface of the tooth which is between the pitch circle and the top of the tooth is known as face of tooth.
The distance between similar, equally spaced tooth surfaces, in a given direction and along a given curve or line is known as pitch.

7. The angle between a tooth profile and a radial line at its pitch point is known as
a) pressure angle
b) dedendum angle
c) spiral angle
d) none of the mentioned
View Answer

Answer: a
Explanation: The angle subtended at the centre of a base circle from the origin of an involute to the point of tangency of the generatrix from any point on the same involute is known as roll angle.
The angle between a tooth profile and a radial line at its pitch point is known as pressure angle.
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8. The angle subtended at the centre of a base circle from the origin of an involute to the point of tangency of the generatrix from any point on the same involute is known as
a) pressure angle
b) dedendum angle
c) roll angle
d) none of the mentioned
View Answer

Answer: c
Explanation: The angle subtended at the centre of a base circle from the origin of an involute to the point of tangency of the generatrix from any point on the same involute is known as roll angle.
The angle between a tooth profile and a radial line at its pitch point is known as pressure angle.

9. Surface of the gear between the fillets of adjacent teeth is known as
a) cycloid
b) addendum
c) bottom land
d) none of the mentioned
View Answer

Answer: c
Explanation: Surface of the gear between the fillets of adjacent teeth is known as bottom land.
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10. The angle, at the base cylinder of an involute gear, that the tooth makes with the gear axis is known as
a) pressure angle
b) base helix angle
c) roll angle
d) none of the mentioned
View Answer

Answer: b
Explanation: The angle subtended at the centre of a base circle from the origin of an involute to the point of tangency of the generatrix from any point on the same involute is known as roll angle.
The angle between a tooth profile and a radial line at its pitch point is known as pressure angle.
The angle, at the base cylinder of an involute gear, that the tooth makes with the gear axis is known as base helix angle.

Sanfoundry Global Education & Learning Series – Machine Kinematics.
To practice all areas of Machine Kinematics, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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