60 most asked Metrology and quality control mcq questions

Q. 1. What is the principle of ‘The Johansson Mikrokator’?
A : Button spinning on a loop of string
B : Principle of interference
C : Optical magnification
D : Principle of transformer

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Button spinning on a loop of string

Q. 2. How many divisions are graduated on thimble?
A : 20
B : 25
C : 45
D : 50

50

Q. 3. Which of the following is true for Pneumatic sensitivity in pneumatic
comparators?

A : Directly proportional to operating pressure
B : Inversely proportion to operating pressure
C : Directly proportional to geometrical area of orifice
D : Independent of area of orifice and operating pressure

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Directly proportional to operating pressure

Q. 4. A positive allowance will always result in a _____ fit.
A : Clearance
B : Interference
C : Allowance
D : None of the above

Clearance

Q. 5. The following is an internationally recognized and accepted unit system
A : MKS
B : FPS
C : SI
D : All of the above

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SI

Q. 6. Which of the following statements is/are true according to Deming’s
Deadly Diseases

A : short term profits are very useful for long term goals
B : mobility of management leads to stability
C : merit rating leads to devastating
D : all of the above

merit rating leads to devastating

Q. 7. To compare an unknown with a standard through a calibrated system is
called

A : Direct comparison
B : Indirect comparison
C : both ‘a’ and ‘b’
D : None of the above

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Indirect comparison

Q. 8. An objective of quality circle team is to ______ errors and _______ quality.
A : reduce, enhance
B : increase, enhance
C : reduce, demean
D : increase, demean

reduce, enhance

Q. 9. Following is the theoretical size which is common to both the parts of a
mating pair

A : Normal size
B : Actual size
C : Base size
D : All of the above

Base size

Q. 10. Circular scale on micrometer is marked on
A : anvil
B : barrel
C : thimble
D : ratchet

thimble

Q. 11. What are the responsibilities of management in quality system
management

A : Frequently change responsibilities of employees for flexibility
B : Frequently change authorities for flexibility
C : Authority changes but fixed responsibility
D : Fix authority and responsibility

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Fix authority and responsibility

Q. 12. According Juran’s Triology, which of the following actions is performed
under planning procedure

A : choosing control subjects
B : organizing project teams
C : project establishment
D : deal with resistance to change

project establishment

Q. 13. Who among the following suggested seven quality tools for controlling
quality

A : Juran
B : Kaoru Ishikawa
C : Dr. W. Edward Deming
D : Feigenbaum

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Kaoru Ishikawa

Q. 14. Which of the following is true for the multiple start screw threads
A : It is produced by a single helical groove
B : Grooves should be different in spacing
C : It gives a quick transverse
D : It is formed in a transverse section on a cylinder

It gives a quick transverse

Q. 15. Malcolm Baldrige national quality award is for (MBNQA)
A : Total Quality Managemnet
B : International Standard Organisation
C : Total Productive Management
D : Total Quality Management

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Total Quality Managemnet

Q. 16. The following is a line standard of measurement
A : Measuring tape
B : Slip gauge
C : Micrometer
D : End bars

Measuring tape

Q. 17. A negative allowance will always result in a _____ fit.
A : Clearance
B : Interference
C : Allowance
D : None of the above

Interference

Q. 18. The frequency distribution of a numerical data can be graphically
represented by a ______

A : Histogram
B : Plan Do Study Act
C : Scatter Diagram
D : Fishbone Diagram

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Histogram

Q. 19. What is the effect of improper alignment of each tooth
A : Tooth thickness increases
B : Face width decreases
C : Load will not distributed evenly
D : Pitch of teeth reduced

Load will not distributed evenly

Q. 20. Which of the following is not true about the axial thickness of screw
thread

A : Measured in direction perpendicular to the axis of thread
B : Measured on pitch cylinder
C : Distance between opposite faces of same thread
D : Measured at the same thread

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Measured in direction perpendicular to the axis of thread

Q. 21. What is meant by P, D, S and A in PDSA cycle
A : Progress Development Study Act
B : Plan Do Study Act
C : Project Development Study Act
D : Prevention Do Study Act

Plan Do Study Act

Q. 22. Which formula is used to calculate quality of performance
A : Quality of performance = quality of design + quality of conformance
B : Quality of performance = quality of design – quality of conformance
C : Quality of performance = quality of design + availability
D : None of the above

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Quality of performance = quality of design + quality of conformance

Q. 23. What is quality control
A : Process of recognition of entire manufacturing process
B : Concerned with the integration of all the efforts in organisation
C : Detection of defects in a product
D : Minimization of material level

Detection of defects in a product

Q. 24. Which of the following is used to make optical flats
A : Toughened glass
B : Glass wool
C : Fused quartz
D : Porous glass

Fused quartz

Q. 25. The following is used to check the diameters of holes
A : Plug gauge
B : Ring gauge
C : Slip gauge
D : Standard screw pitch gauge

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Plug gauge

Q. 26. In present day measurement systems
A : direct methods are commonly used
B : one of direst methods is limited but indirect methods are commonly used
C : both direct and indirect methods are commonly used
D : all of the above

one of direst methods is limited but indirect methods are commonly used

Q. 27. Which of the following is not determined by the functional type of
inspection

A : Lead
B : Noise level
C : Variation in action
D : Vibration

Lead

Q. 28. Which of the following is not a name of the major diameter of an
external thread

A : Outside diameter
B : Crest diameter
C : Full diameter
D : Cone diameter

Cone diameter

Q. 29. The ability by which a measuring device can detect small differences in
the quantity being measured by it, is called its

A : Damping
B : Sensitivity
C : Accuracy
D : None of the above

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Sensitivity

Q. 30. The amount by which the actual size of a shaft is less than the actual size
of mating hole in an assembly

A : Clearance
B : Interference
C : Allowance
D : None of the above

Interference

Q. 31. What is the order of magnification in flow type pneumatic gauge?
A : 100 to 1000 times
B : 500 to 5000 times
C : 50 to 500 times
D : 100 to 2000 times

500 to 5000 times

Q. 32. The degree of closeness of the measured value of a certain quantity with
its true value is known as

A : Accuracy
B : Precision
C : Standard
D : Sensitivity

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Accuracy

Q. 33. in Angle measurement 1 degree
A : 60 min
B : 30 min
C : 60 sec
D : 30 sec

60 min

Q. 34. The following is not used to measure angles
A : Bevel protectors
B : Calibrated levels
C : Clinometers
D : Optical flats

Optical flats

Q. 35. The thickness of light gauge sheet steel can be best checked with a
A : Finely divided steel scale
B : Depth gauge
C : Hermaphrodite caliper
D : Micrometer

Micrometer

Q. 36. What is quality assurance
A : Quality assurance deals with activities which prove that products and services meet
the required quality standard
B : Quality assurance deals with activities which aim at customers satisfaction
C : Quality assurance deals with controlling the quality of products by inspection
D : All of the above

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

Q. 37. The principle of ‘Interchangeability’ is normally employed for
A : Mass production
B : Production of identical parts
C : Parts within the prescribed limits of sizes
D : All of the above

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All of the above

Q. 38. What is the advantage of mechanical comparator over others?
A : Less moving parts
B : No need of external supply
C : No error due to parallax
D : Large range of instrument

No need of external supply

Q. 39. What is the relation between overall magnification and pneumatic
sensitivity in pneumatic comparators?

A : Independent of each other
B : Overall magnification is directly dependent on the square of pneumatic sensitivity
C : Overall magnification is inversely proportional to the pneumatic sensitivity
D : Overall magnification is directly dependent on the pneumatic sensitivity

Overall magnification is directly dependent on the pneumatic sensitivity

Q. 40. What is the range of bevel protractor?
A : 90-270°
B : 0-90°
C : 0-180°
D : 0-360

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0-360

Q. 41. While setting quality objective what measure focus to be considered
A : Material Quality
B : Customer Need
C : Market Demand
D : All of the Above

Customer Need

Q. 42. _____ is equal to the differences of the two limits of size of the part
A : Tolerance
B : Low limit
C : High limit
D : Design size

Tolerance

Q. 43. Which of the following is true for generating method of gear formation
A : No use of cutter
B : Profiles of several teeth are formed simultaneously
C : Linear motion of the tool and the blank is not constant
D : Each tool space is cut independently

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Profiles of several teeth are formed simultaneously

Q. 44. According to Juran’s triology diagram, what is the shaded region called
A : zone of control
B : chronic waste
C : sporadic spike
D : none of the above

chronic waste

Q. 45. Cause and effect diagram is also known as _______
A : Fishbone diagram
B : Fish diagram
C : Both Ishikawa diagram and Fishbone diagram
D : Effect diagram

Both Ishikawa diagram and Fishbone diagram

Q. 46. What is the difference between CMM and UMM
A : UMM can’t inspect geometrical features while CMM does it
B : CMM is more accurate than UMM but can inspect geometrical features
C : UMM is more accurate than CMM and can inspect geometrical features
D : CMM is more accurate than UMM but can’t inspect geometrical features

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UMM is more accurate than CMM and can inspect geometrical features

Q. 47. The amount by which the actual size of a shaft is less than the actual size
of mating hole in an assembly

A : Clearance
B : Interference
C : Allowance
D : None of the above

Clearance

Q. 48. Which of the following is not true about metrology lasers used in laser
inspection

A : These are high-power instruments
B : Used for rapid non-contact gauging of delicate parts
C : Have low optical cross-talk
D : Wide dyanmic range

These are high-power instruments

Q. 49. Scatter diagram is graphical component of ____________
A : Regression analysis
B : Demand
C : Supply
D : Profit

Regression analysis

Q. 50. What is the sine center?
A : Center of the sine bar
B : Sine bar with block holding centers
C : Sine bar with a hole in center
D : Sine bar with hollow rod in center

Sine bar with block holding centers

Q. 51. Which type of chart uses the rule of 20:80
A : cause and effect chart
B : Pareto chart
C : fish bone diagram
D : control chart

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Pareto chart

Q. 52. Which of the following can be used to ensure smoothness of gear
operation

A : By limiting the minimum permissible deviation in base circle
B : By limiting the maximum permissible deviation in base circle
C : By limiting the maximum permissible deviation in basic pitch
D : By limiting the minimum permissible deviation in basic pitch

By limiting the maximum permissible deviation in basic pitch

Q. 53. Quality is fitness for use. Identify the quality guru who said this
A : Deming
B : Crosby
C : Juran
D : Taguchi

Juran

Q. 54. What is profile error
A : The minimum distance of any point on the profile of tooth form and normal to the
design profile when the two coincide at the reference circle
B : The minimum distance of any point on the profile of tooth form and parallel to the
design profile when the two coincide at the reference circle
C : The maximum distance of any point on the profile of tooth form and parallel to the
design profile when the two coincide at the reference circle
D : The maximum distance of any point on the profile of tooth form and normal to the design profile when the two coincide at the reference circle

The maximum distance of any point on the profile of tooth form and normal to the design profile when the two coincide at the reference circle

design profile when the two coincide at the reference circle
Q. 55. Which of the following is not true for autocollimator?

A : Contact measurement
B : Use for small tilts
C : High sensitivity
D : Used to determine parallelism

Contact measurement

Q. 56. What is the name of angle which is present between line of action and
common tangent to the pitch circles

A : Helix angle
B : Lead angle
C : Pitch angle
D : Pressure angle

Pressure angle

Q. 57. Which of the following is true about probes used in automatic inspection
machines

A : Retractable type
B : Non-retractable type
C : Auxiliary probe is not used
D : Heads of probes are not held back till the part is in gauging position

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Retractable type

Q. 58. Quality improvement planning is related to which category of cost
A : Cost of failure
B : Cost of appraisal
C : Cost of prevention
D : All of the above

Cost of appraisal

Q. 59. Which of the following is not true about automatic inspection machine
A : Human intervention is required to judge the quality
B : Consists a logic system
C : Self diagnostic system is present
D : Microprocessors are present

Human intervention is required to judge the quality

Q. 60. Which of the following instruments is used to measure base pitch of a
gear in base tangent method

A : Gear tooth vernier caliper
B : David brown tangent calliper
C : David Brown tangent comparator
D : David Brown tangent micrometer

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David brown tangent calliper

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