Introduction on Jigs,Fixtures and Tool design

Which of the following is not correct about fixture?

• It is used to hold the work

• It is used to position the work

• It is used to guide the cutting tool

• It assures high accuracy of parts

In which of the following operation jigs are preferred over fixture?

• Drilling

• Turning

• Milling

• Grinding

The use of jigs and fixtures

• Facilitates deployment of less skilled labor for production

• Eliminates pre-machining operations like marking, measuring, laying out etc.

• reduced manual handling operations

• All of the above

The jigs and fixtures can be constructed through

• Casting

• Fabrication

• Welding

• All of the above

How jigs are in terms of weight compared to fixtures?

• Jigs are lighter than fixtures

• Jigs are heavier than fixtures

• Jigs are equal in weight to fixtures for same operation

• cannot say

Which of the following sentences are true for jigs and fixtures?

1. Using jigs and fixture produce work rapidly

2. High speed, feed and depth of cut can be used in machining with the help of jigs and fixtures

3. Jigs and fixture cannot be used in machining of complex and heavy components

• (1) and (2)

• (2) and (3)

• (1) and (3)

• (1), (2) and (3)

Objective of tool design

1. Reduce the overall cost of manufacturing

2. Increase the production rate

3. Consistently produce parts with the required precision.

4. Design tools that will be safe and easy to operate

• (1) (2) and (3)

• (2) (3) and (4)

• (1) (3) and (4)

• (1) (2) (3) and (4)

Jigs and Fixtures are used for

• Mass production

• Identical parts production

• Both ‘A’ and ‘B’

• None of the above

Fixtures are used in

• Milling

• Turning

• Grinding

• All the above