Engineering Metrology Practice Test 8

1. Which of the following item must fall within the prescribed limit for ring gauges?

Measured effective diameter -ΔE1+ΔE2

Measured effective diameter +ΔE1-ΔE2

Measured effective diameter +ΔE1+ΔE2

Measured effective diameter -ΔE1-ΔE2

2. What is blank diameter?

Base circle diameter plus twice the addenda

Pitch circle diameter plus twice the addenda

Base circle diameter plus addenda

Pitch circle diameter plus addenda

3. Which type of test is done on the main spindle of a machine?

Levelling

Flatness

True running

Alignment

4. What is the minor diameter tolerance of effective diameter for external threads?

Effective diameter tolerance+0.01√p & Effective diameter tolerance+0.02√p

Effective diameter tolerance+0.03√p & Effective diameter tolerance+0.01√p

Effective diameter tolerance+0.013√p & Effective diameter tolerance+0.02√p

Effective diameter tolerance+0.02√p & Effective diameter tolerance+0.01√p

5. A constant ‘K’ is used for defining the shape of thread. What is the value of ‘K’ for Whitworth?

1.92

1.73

1.62

1.5

6. What is the tolerance on effective diameter for gauges upto 1.5” diameter as per B.S.S. No. 919?

0.0005”

0.0002”

0.0003”

0.0004”

7. How many variables are taken into consideration for the calculation of effective diameter tolerance?

8. What should M 22 designate in pitch diameter combination?

22mm diameter with lowest fine pitch

22mm diameter with all pitch

22mm diameter with standard coarse pitch

22mm diameter with highest fine pitch

9. Where does involute gear is used?

Where impact loads comes on machine

For crude purposes

Where heavy loads comes on machine

General purpose in precision engineering

10. Which of the following is used to test leveling of machine bed?

Feeler gauge

Sensitive spirit level

Mandrels

Slip gauge