Metrology & Quality Control Test Question - Set 3

1)   Imperial standard yard is made of

a. platinum alloy
b. platinum iridium alloy
c. bronze
d. all of the above
Answer  Explanation  Related Ques

ANSWER: bronze

Explanation:
No explanation is available for this question!


2)   In which of the following length standards, parallax error is observed?

a. line standard
b. end standard
c. both a. and b.
d. none of the above
Answer  Explanation  Related Ques

ANSWER: line standard

Explanation:
No explanation is available for this question!


3)   Grade 1 is used in

a. high precision tasks
b. department of inspection
c. calibration of instruments
d. all of the above
Answer  Explanation  Related Ques

ANSWER: department of inspection

Explanation:
No explanation is available for this question!


4)   Testing flatness or straightness of a surface is possible using

a. vernier caliper
b. micrometer
c. autocollimator
d. all of the above
Answer  Explanation  Related Ques

ANSWER: autocollimator

Explanation:
No explanation is available for this question!


5)   Which principle is used to measure distance in electronic comparator?

a. Frequency modulation
b. Radio oscillations
c. Both a. and b.
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Both a. and b.

Explanation:
No explanation is available for this question!


6)   The sensitivity of back pressure air gauge is given by the relation shown below, what does δ R / δ p2  signify?

(δR / δt) = (δ Am / δ t) x (δ R / δ p2 )  x (δ p2  / δ Am )


a. Pneumatic sensitivity
b. Sensitivity of pressure gauge
c. Overall magnification
d. Measuring head sensitivity
Answer  Explanation  Related Ques

ANSWER: Sensitivity of pressure gauge

Explanation:
No explanation is available for this question!


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

a. parallax error
b. cosine error
c. sine error
d. all of the above
Answer  Explanation  Related Ques

ANSWER: cosine error

Explanation:
No explanation is available for this question!


8)   Which type of circularity reference circle is shown below ?
Condition given out of roundness δ = δr


MQC - (38).jpeg
a. Minimum inscribed circle
b. Minimum circumscribed circle
c. Least square circle
d. Minimum zone circle
Answer  Explanation  Related Ques

ANSWER: Minimum zone circle

Explanation:
No explanation is available for this question!


9)   Which of the following is true for interference fit?

a. Shaft is always smaller than the hole
b. Shaft is always bigger than the hole
c. Interference fits have shaft and hole of same dimension
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Shaft is always bigger than the hole

Explanation:
No explanation is available for this question!


10)   How is interference between shaft and hole calculated?

a. Interference = maximum shaft – minimum hole
b. Interference = minimum shaft – maximum hole
c. Interference = minimum shaft + maximum hole
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Interference = maximum shaft – minimum hole

Explanation:
No explanation is available for this question!


11)   Which among the following is used to create fringes in N.P.L. interferometer?

a. Condensing lens
b. Collimating lens
c. Optical flat
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Optical flat

Explanation:
No explanation is available for this question!


12)   Which type of light source is used in N.P.L. type of flatness interferometer?

a. Mercury vapour lamp
b. Cadmium lamp
c. Both a. and b.
d. None of the above
Answer  Explanation  Related Ques

ANSWER: Mercury vapour lamp

Explanation:
No explanation is available for this question!


13)   Which principle does Taylor-Hobson-Talysurf tester work on?

a. Capacitive demodulating principle
b. Intensity modulating principle
c. Inductive modulating principle
d. Carrier modulating principle
Answer  Explanation  Related Ques

ANSWER: Carrier modulating principle

Explanation:
No explanation is available for this question!


14)   Which of the following methods is unreliable to evaluate the surface finish?

a. Electrical stylus profilometer
b. Wallace surface dynamometer
c. Profilograph
d. Tomlinson surface tester
Answer  Explanation  Related Ques

ANSWER: Wallace surface dynamometer

Explanation:
No explanation is available for this question!


15)   Calculate diameter of best wire for a Withworth thread of M 24 x 7 mm size.

a. 4.04 mm
b. 7.8 mm
c. 3.94 mm
d. 8.08 mm
Answer  Explanation  Related Ques

ANSWER: 3.94 mm

Explanation:
No explanation is available for this question!


16)   Which of the following statements is true?

a. In three wire method, each flank of a thread is touched by a wire in axial plane section and this is valid only for a thread having rank angle
b. Compression error is always subtracted from effective diameter value obtained
c. Floating carriage type of micrometer is used for two wire method ----
d. The value of θ is assumed 30o while calculating best wire diameter for Withworth thread
Answer  Explanation  Related Ques

ANSWER: Floating carriage type of micrometer is used for two wire method ----

Explanation:
No explanation is available for this question!


17)   Calculate the tool width of a gear having 30 number of teeth and with module 5 mm.

a. 6.352 mm
b. 5.555 mm
c. 7.850 mm
d. none of the above
Answer  Explanation  Related Ques

ANSWER: 7.850 mm

Explanation:
No explanation is available for this question!


18)   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.

a. 21.25 mm
b. 90.23 mm
c. 62.53 mm
d. None of the above
Answer  Explanation  Related Ques

ANSWER: 90.23 mm

Explanation:
No explanation is available for this question!


19)   Which of the following is a contact type of automated inspection method?

a. Inspection probe
b. Laser scanning
c. Electric field
d. All of the above
Answer  Explanation  Related Ques

ANSWER: Inspection probe

Explanation:
No explanation is available for this question!


20)   Which are the different techniques used by interpretation segments for interpretation?

a. frame grabber and frame store
b. template matching and weighting
c. thresholding and edge detection
d. all of the above
Answer  Explanation  Related Ques

ANSWER: template matching and weighting

Explanation:
No explanation is available for this question!


21)   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
Answer  Explanation  Related Ques

ANSWER: Quality of performance = quality of design + quality of conformance

Explanation:
No explanation is available for this question!


22)   Which of the following strategies of Deming's fourteen points is included into category of Management commitment?  

a. Institute leadership
b. Encouraging education
c. Eliminating exhortations
d. Adopting new philosophy
Answer  Explanation  Related Ques

ANSWER: Adopting new philosophy

Explanation:
No explanation is available for this question!


23)   Which among the following depicts positive and negative relation between driving factor and performance factor?

a. Scatter diagram
b. histogram
c. check sheet
d. none of the above
Answer  Explanation  Related Ques

ANSWER: Scatter diagram

Explanation:
No explanation is available for this question!


24)   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
Answer  Explanation  Related Ques

ANSWER: Pareto chart

Explanation:
No explanation is available for this question!


25)   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


a. Only 1
b. Only 2
c. Only 3
d. All the statements are true
Answer  Explanation  Related Ques

ANSWER: Only 3

Explanation:
No explanation is available for this question!


26)   Sample size of 1 m2 is observed in which type of chart?

a. C chart
b. P chart
c. nP chart
d. R chart
Answer  Explanation  Related Ques

ANSWER: C chart

Explanation:
No explanation is available for this question!


27)   Which of the following statements is/are true?

1. Probability of acceptance decreases if acceptance number increases, when sampling size is kept constant
2. Indifferent quality range is the range between lot tolerance percent defective and acceptable quality level
3. Operating characteristics curve is the curve plotted between probability of acceptance and indifferent quality range


a. Only 1
b. Only 2
c. Only 3
d. All the above statements are true
Answer  Explanation  Related Ques

ANSWER: Only 2

Explanation:
No explanation is available for this question!


28)   On operating characteristics curve, consumers risk is denoted by

a. α
b. β
c. γ
d. None of the above
Answer  Explanation  Related Ques

ANSWER: β

Explanation:
No explanation is available for this question!


29)   ISO 14000 quality standard is related with

a. Environmental management systems
b. Automotive quality standards
c. Eliminating poor quality
d. Customer satisfaction
Answer  Explanation  Related Ques

ANSWER: Environmental management systems

Explanation:
No explanation is available for this question!


30)   Which ISO standard is used in international automobile companies to set automotive quality system standards ?

a. ISO 14000
b. TS 16949
c. ISO 9000
d. none of the above
Answer  Explanation  Related Ques

ANSWER: TS 16949

Explanation:
No explanation is available for this question!