Manufacturing Processes I Mcqs

Q:

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
 
Answer & Explanation Answer: B) 1.50

Explanation: Contact ratio = arc of contact/circular pitch.

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21
Q:

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
 
Answer & Explanation Answer: A) Sum of addendum of two gears

Explanation: Working depth of two mating gear is numerically equal to sum of the addendum of two gears.

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Q:

Full depth of teeth is equal to

A) Addendum * dedendum B) Addendum / dedendum
C) Addendum – dedendum D) Addendum + dedendum
 
Answer & Explanation Answer: D) Addendum + dedendum

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

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24
Q:

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
 
Answer & Explanation Answer: D) Space width

Explanation: Space width is the width of tooth space along the pitch circle.

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21
Q:

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
 
Answer & Explanation Answer: C) Working depth of teeth

Explanation: Maximum depth to which tooth can penetrate into the tooth space of mating gear is known as working depth of teeth.

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20
Q:

Total radial depth of tooth space is known as

A) Clearance B) Full depth of teeth
C) Working depth of teeth D) Space width
 
Answer & Explanation Answer: B) Full depth of teeth

Explanation: Total radial depth of tooth space is known as full depth of teeth.

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32
Q:

Standard value of clearance is generally taken as

A) 1 module B) 2 module
C) 1.157 module D) 0.157 module
 
Answer & Explanation Answer: D) 0.157 module

Explanation: Clearance of gear is generally taken equal to 0.157 modules.

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17
Q:

Radial difference between addendum and dedendum of tooth is known as

A) Clearance B) Full depth of teeth
C) Working depth of teeth D) Space width
 
Answer & Explanation Answer: A) Clearance

Explanation: Clearance is the radial difference between addendum and dedendum of tooth.

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