Engineering Questions with Answers - Multiple Choice Questions

# Manufacturing Engineering – Gear Terminology-2

1 - Question

Circle passing through the top of the tips of teeth is known as
c) Dedendum
d) Dedendum circle
Explanation: Circle passing through the top of the tips of teeth is known as addendum circle.

2 - Question

Height of tooth above pitch circle is known as
c) Dedendum
d) Dedendum circle
Explanation: Addendum is the height of tooth above pitch circle.

3 - Question

Addendum of gear is generally taken equal to
a) 1 module
b) 2 module
c) 1.157 module
d) 0.157 module
Explanation: Addendum of gear is generally taken equal to 1 module.

4 - Question

Circle passing through root of teeth is known as
c) Dedendum
d) Dedendum circle
Explanation: Circle passing through the root of teeth is known as dedendum circle.

5 - Question

Circle passing through root of teeth is known as
c) Dedendum
d) Root circle
Explanation: Circle passing through the root of teeth is known as root circle.

6 - Question

Radial depth of tooth below pitch circle is known as
c) Dedendum
d) Dedendum circle
Explanation: Dedendum is the radial depth of tooth below pitch circle.

7 - Question

Standard value of dedendum is generally taken as
a) 1 module
b) 2 module
c) 1.157 module
d) 0.157 module
Explanation: Dedendum of gear is generally taken equal to 1.157 modules.

8 - Question

a) Clearance
b) Full depth of teeth
c) Working depth of teeth
d) Space width
Explanation: Clearance is the radial difference between addendum and dedendum of tooth.

9 - Question

Standard value of clearance is generally taken as
a) 1 module
b) 2 module
c) 1.157 module
d) 0.157 module
Explanation: Clearance of gear is generally taken equal to 0.157 modules.

10 - Question

Total radial depth of tooth space is known as
a) Clearance
b) Full depth of teeth
c) Working depth of teeth
d) Space width
Explanation: Total radial depth of tooth space is known as full depth of teeth.

11 - Question

Maximum depth to which tooth can penetrate into the tooth space of mating gear is known as
a) Clearance
b) Full depth of teeth
c) Working depth of teeth
d) Space width
Explanation: Maximum depth to which tooth can penetrate into the tooth space of mating gear is known as working depth of teeth.

12 - Question

Width of tooth space along the pitch circle is known as
a) Clearance
b) Full depth of teeth
c) Working depth of teeth
d) Space width
Explanation: Space width is the width of tooth space along the pitch circle.

13 - Question

Full depth of teeth is equal to
Explanation: Full depth is the sum of addendum and dedendum.

14 - Question

Working depth of two mating gear is numerically equal to
a) Sum of addendum of two gears
b) Difference of addendum of two gears
c) Difference of dedendum of two gears
d) Sum of dedendum of two gears
Explanation: Working depth of two mating gear is numerically equal to sum of the addendum of two gears.

15 - Question

For a given pair of mating gear, arc of contact is 6mm and a circular pitch is 4 mm. Contact ratio is equal to
a) 3.20
b) 1.50
c) 4.75
d) 6.32