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Important Tests MCQs of Metrology / Met Branch / PDF

Metrology plays a crucial role in various engineering fields, especially for candidates aspiring to join the Pakistan Air Force (PAF) in the Metrology Branch. For those looking to apply, it is essential to be well-prepared for the competitive metrology MCQs exam. Whether you are studying topics such as engineering metrology, measurement and metrology, or limits and fits, mastering these areas is key to success. Commonly asked questions in the PAF metrology exams often cover gauge systems, vernier and micrometer readings, and surface finish and tolerance. Additionally, understanding angular measurement, including tools like sine bars and bevel protractors, will give candidates an edge in the selection process.

To enhance your preparation, focusing on metrology MCQs specifically tailored for the PAF fitter exams can provide a clear advantage. By solving practice metrology objective questions and answers, candidates can boost their knowledge and gain confidence for the upcoming exams. All important questions related to Metrology are available here. These MCQs are very helpful and to join Pak Defence Forces. These are applicable for all officers and tests of below ranks. For more notes of the subjects CLICK HERE

Online Practice of PAF Metrology MCQs with Answers

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Metrology Quiz

Function of transducer is to convert:-

Electric signal into non electrical quantity

none

Non electrical signal into electrical signal

Both

For inspection purpose __________ slip gauges are used

00 grade

1 grade

2 grade

0 grade

Which one is incorrect about meter (line standard):-

It is inoxidable

supported by two rulers

Kept at 10 degree celsius

In meter rollers are laced at a distance of 751 mm:-

True

False

What is the width of feeler gauge blades at tip;-

6 mm

15 mm

25 mm

11 mm

What is the distance when support for a simply supported beam:-

0.577 L

0.554 L

0.557 L

0.575 L

Match the following group 1 items with group 2 items

1. Sort -------------------------------------------------- A. Seitan
2. Set in order ----------------------------------------- B. Seiketsu
3. Shine ------------------------------------------------ C. Seiri
4. Standardize ---------------------------------------- D. Seiso

1 – D, 2 – A, 3 – B, 4 – C

1 – C, 2 – A, 3 – D, 4 – B

1 –A, 2 – C, 3 – D, 4 – B

1 – B, 2 – C, 3 – A, 4 – D

What is another name of radius gauge;-

Ring gauge

Planer gauge

Fillet gauge

Circular scale on micrometer is marked on

Barrel

Anvil

Thimble

Ratchet

What is the use of v-block:-

For checking only squareness of square work pieces

For support purpose

For checking roundness

Process of chemical cleaning are:-

Solution

Emulsification

Sponificatio

All of them

A shaft rotating in a bushed bearing is good example of

Push fit

Running fit

Sliding fit

Driving fit

Which of the following statements is true?

1. P and nP charts cannot use limit gauges
2. P charts are difficult to understand
3. P charts cannot recognize different degrees of defectiveness in units

Only 2

Only 3

Only 1

Which among the following causes first order surface irregularity?

Lack of straightness

Lack of rigidity

Feed and speed

Vibrations

Which one is the most suitable for wavelength standard:-

Mercury 198

Cadmium114

Krypton 86

Which of the following is not the essential requirement for accuracy of measurement with a sine bar?

Exact distance between roller axes and mutual parallelism

Parallelism of rollers to upper surface and equality of axis distance as from surface

Flatness of upper surface

Parallelism between top and bottom surfaces

What is a least square line?

A line which has sum of difference of errors minimum

A line which has sum of errors minimum

A line which has sum of squares of errors minimum

None of the above

Which one is an advantage of gas laser:-

Highly monochromatic light

Produce intense light

All of them

Enormous path difference between interference fringes

Displacement method can be used for comparison of an end gauge with a line standard:-

True

False

At which angle does a glass plate reflector set in N.P.L. interferometer?

60˚

30˚

90˚

45˚

Male or female centres are non adjustable on bench centres;-

False

True

According to Taylor's principle which type of gauge checks both size and geometric features?

Go gauge

No go gauge

Both a. and b.

None of the above

1 Angstrom (Å) = _____

10^-6m

10^-12m

10^-8m

10^-10m

V blocks are used in;-

Checking roundness

Checking Eccentre

Checking flatness

What is alternative name of functional diameter:-

Root diameter

Cone diameter

Virtual diameter

Your score is

More Academic Tests of Metrology MCQs

What does metrology primarily study?
- A) Weather patterns
- B) Measurement systems
- C) Metallurgical processes
- D) Metropolitan development
- Correct Answer: B) Measurement systems
Which international organization is responsible for global metrology standards?
- A) World Trade Organization (WTO)
- B) United Nations (UN)
- C) International Organization of Standardization (ISO)
- D) International Bureau of Weights and Measures (BIPM)
- Correct Answer: D) International Bureau of Weights and Measures (BIPM)
What is the SI unit of temperature?
- A) Fahrenheit
- B) Celsius
- C) Kelvin
- D) Joule
- Correct Answer: C) Kelvin
Which instrument is used to measure atmospheric pressure?
- A) Anemometer
- B) Barometer
- C) Hygrometer
- D) Thermometer
- Correct Answer: B) Barometer
Accuracy in metrology refers to:
- A) The consistency of the measurement results
- B) The closeness of a measurement to the true value
- C) The range of measurement values
- D) The speed of obtaining measurement results
- Correct Answer: B) The closeness of a measurement to the true value
What is calibration in terms of metrology?
- A) Adjustment of equipment to minimize errors
- B) Repairing broken measuring instruments
- C) Estimation of the environmental impact on measurements
- D) Certification of technicians in measurement techniques
- Correct Answer: A) Adjustment of equipment to minimize errors
Which device is commonly used to measure length in the mechanical engineering field?
- A) Caliper
- B) Spectrometer
- C) Manometer
- D) Dynamometer
- Correct Answer: A) Caliper
What is the purpose of a gauge block?
- A) To measure the depth of holes
- B) To set or verify distances between surfaces
- C) To determine the hardness of materials
- D) To measure the temperature of liquids
- Correct Answer: B) To set or verify distances between surfaces