Tests of Metrology - SHAHEEN LEADERS ACADEMY PAKISTAN

Metrology MCQs

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Metrology Quiz

1 / 25

What is the relation between variation due to observation, manufacturing process and measuring process of a product?

σobservation = σprocess + σmeasurement

σobservation = σprocess / σmeasurement

σobservation = σprocess – σmeasurement

σobservation = σprocess * σmeasurement

2 / 25

Which error is observed due to lack of squareness when depth is measured using depth micrometer?

Parallax error

Sine error

Cosine error

All of the above

3 / 25

What are the two grades of angle gauges?

Precise and Normal

Master and tool room

Standard and Industrial

High and low

4 / 25

Which type of tolerance does a slip gauge have?

Both a. and b.

None of the above

Bilateral tolerance

Unilateral tolerance

5 / 25

Who among the following suggested seven quality tools for controlling quality?

Kaoru Ishikawa

Feigenbaum

Dr. W. Edward Deming

Juran

6 / 25

What is the range of reading error for measuring a range of height gauges of 250 mm?

±0.05

±0.02

±0.04

±0.03

7 / 25

What is error of circularity?

None of the above

Distance between maximum inscribing circle and minimum circumscribing circle measured radially

Distance between least square circle and minimum zone circle measured radially

Distance between maximum inscribing circle and minimum zone circle measured radially

8 / 25

Overall magnification of optical comparators is given as

(2 d / f) x ( magnification of eye piece)

(4 d / f) x ( magnification of eye piece)

(4 f / d) x ( magnification of eye piece)

(2 f / d) x ( magnification of eye piece)

9 / 25

Which of the following statements is/are false?

All of the above

Clearance is observed in push fit

Allowance represents minimum interference for interference fits

Interference is observed in tight fit

10 / 25

Which among the following is a type of control chart for variables?

U chart

X chart

P chart

C chart

11 / 25

A negative allowance will always result in a _____ fit.

Interference

Clearance

Transition

Any of the above

12 / 25

The following is an internationally recognized and accepted unit system

MKS

All of the above

FPS

13 / 25

ISO 14000 quality standard is related with

Eliminating poor quality

Customer satisfaction

Environmental management systems

Automotive quality standards

14 / 25

Slip gauges were invented by _________

C V Raman

Alexander

Symons

C E Johansson

15 / 25

what is the least count of vernier calip

0.2

0.01

0.02

0.1

16 / 25

Match the following Group 1 items (Type of error) with Group 2 items (characteristics) and select the correct option

1. Gross error --------------------------------------------- A. Magnitude and direction vary
2. Systematic error -------------------------------------- B. Caused by electrostatic fields
3. Random error ------------------------------------------ C. Human fault
4. Environmental error ---------------------------------- D. Magnitude and direction are definite

1-C, 2-D, 3-A, 4-B

1-D, 2-A, 3-B, 4-C

1-B, 2-A, 3-D, 4-C

1-A, 2-C, 3-D, 4-B

17 / 25

How many grades or classes of slip gauges are present?

18 / 25

The following term(s) is (are) associated with measuring devices

None of the above

Both ‘a’ and ‘b’

Damping

Sensitivity

19 / 25

What is the least count of dial indicators which can be calibrated using passmeter?

0.05 mm

0.07 mm

0.01 mm

0.03 mm

20 / 25

A gear has 30 teeth with module 4 mm and pressure angle of 20o. Calculate length of base tangent in a gear over 7 teeth space.

90.23 mm

21.25 mm

None of the above

62.53 mm

21 / 25

Gearing, backlash, friction between moving parts, and scale accuracies are generally known as

Instrument error

Calibration error

Interaction error

Interference error

22 / 25

What is the permissible error in straight movement of longitudinal and transverse table in horizontal plane?

0.004 mm

0.002 mm

0.003 mm

0.005 mm

23 / 25

To check external diameter of hole, we use

Slip gauge

Ring gauge

Standard screw pitch gauge

Plug gauge

24 / 25

In an outside micrometer _______ turns open the anvils by exactly 1.00 mm

Two

Half

One and half

One

25 / 25

What is quality assurance?

Quality assurance deals with controlling the quality of products by inspection

Quality assurance deals with activities which aim at customers satisfaction

All of the above

Quality assurance deals with activities which prove that products and services meet the required quality standard

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Metrology MCQs

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