Engineering Questions with Answers - Multiple Choice Questions

# Manufacturing Engineering – Gear Terminology-1

1 - Question

Imaginary friction cylinders which by pure rolling together transmit the same motion as pair of gears is known as
a) Pitch cylinders
b) Pitch diameter
c) Pitch circle
d) Pitch point
Explanation: Imaginary friction cylinders which by pure rolling together transmit the same motion as pair of gears is known as pitch cylinders.

2 - Question

Circle which corresponds to section of equivalents cylinder by a plane normal to wheel axis is known as
a) Pitch cylinders
b) Pitch diameter
c) Pitch circle
d) Pitch point
Explanation: Pitch circle is the circle which corresponds to section of equivalents cylinder by a plane normal to wheel axis

3 - Question

Diameter of pitch cylinder is known as
a) Pitch cylinders
b) Pitch diameter
c) Pitch circle
d) Pitch point
Explanation: Pitch diameter is the diameter of a pitch cylinder.

4 - Question

Two different pitch circles generally meet at
a) Pitch cylinders
b) Pitch diameter
c) Pitch circle
d) Pitch point
Explanation: At pitch point two different pitch circles generally meets.

5 - Question

Line passing through center of rotation of two meeting gear is known as
a) Pitch line
b) Rack
c) Pinion
d) Line of centre
Explanation: Line of centre is the line passing through center of rotation of two meeting gear.

6 - Question

Driving gear of two mating gear which is generally small is known as
a) Pitch line
b) Rack
c) Pinion
d) Line of centre
Explanation: Pinion is the driving gear of two mating gear which is generally small.

7 - Question

Gear wheel of infinite diameter is also known as
a) Pitch line
b) Rack
c) Pinion
d) Line of centre
Explanation: Rack have infinite diameter.

8 - Question

Part of pitch circle of rack which is a straight line is also known as
a) Pitch line
b) Rack
c) Pinion
d) Line of centre
Explanation: Pitch line is the part of pitch circle of rack which is a straight line.

9 - Question

Ratio of circumference of pitch circle to number of teeth is known as
a) Circular pitch
b) Diametral pitch
c) Module
d) Gear ratio
Explanation: Circular pitch is the ratio of a circumference of pitch circle to number of teeth.

10 - Question

Distance measured along the circumference of pitch circle from a point on tooth to the corresponding point on adjacent tooth is known as
a) Circular pitch
b) Diametral pitch
c) Module
d) Gear ratio
Explanation: Circular pitch is the ratio of a circumference of pitch circle to number of teeth.

11 - Question

Number of teeth divided by length of pitch circle diameter is known as
a) Circular pitch
b) Diametral pitch
c) Module
d) Gear ratio
Explanation: Diametral pitch is the number of teeth divided by length of pitch circle diameter.

12 - Question

Ratio of pitch diameter in mm to the number of teeth is known as
a) Circular pitch
b) Diametral pitch
c) Module
d) Gear ratio
Explanation: Module is the ratio of pitch diameter in mm to the number of teeth.

13 - Question

Module of two mating gears must be
a) Same
b) Different
c) Small
d) None of the mentioned
Explanation: Module of two mating gear must be same.

14 - Question

Ratio of number of teeth on gear to the number of teeth on pinion is known as
a) Circular pitch
b) Diametral pitch
c) Module
d) Gear ratio
Explanation: Gear ratio is the ratio of number of teeth on gear to the number of teeth on pinion.

15 - Question

Ratio of angular velocity of the follower to the angular velocity of driving gear is known as
a) Gear ratio
b) Module
c) Velocity ratio
d) None of the mentioned