DBATU Model MCQ - Metrology & Quality Engineering

Welcome to your Metrology & Quality Engineering, dated April 19, 2021

1. Johansson mickrocator is a type ofDeselect Answer

mechanical optical comparator

mechanical comparator

optical comparator

electrical comparator

2. What is a least square line?Deselect Answer

A line which has sum of errors minimum

A line which has sum of difference of errors minimum

A line which has sum of squares of errors minimum

All of the above

3. Why are pitch errors observed in threads?Deselect Answer

Lack of inspection

Incorrect ratio of tool work velocity

Interference between mating parts

None of the above

4. Spiral gears are used to transmit power when the shafts areDeselect Answer

parallel

interesting

parallel and intersecting

neither parallel nor intersecting

5. Which among the following is a type of control chart for variables?Deselect Answer

X chart

P chart

C chart

U chart

6. What are the factors causing sampling error?Deselect Answer

method of sample selection

Sample size

Both a & b

None of the above

7. What is the type of instrument shown below?
Deselect Answer

Bore gauge

Telescopic gauge

Slip gauge

All of the above

8. Indicator method is used to testDeselect Answer

straightness

squareness

flatness

all of the above

9. Which type of fringe is formed, if a path difference of λ/2 is observed in an interference pattern?Deselect Answer

Dark fringe

Bright fringe

Both bright and dark fringe overlap

Unpredictable

10. Which among the following causes first order surface irregularity?Deselect Answer

Lack of rigidity

Feed and speed

vibration

Lack of straightness

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