Introduction to Metrology Quality Control - Mechanical Engineering (MCQ) questions and answers

1)   The study of scientific metrology deals with

a. accuracy and methods of measurement
b. standard specifications
c. theories related to nature
d. all of the above
Answer  Explanation 

ANSWER: theories related to nature

Explanation:
No explanation is available for this question!


2)   Which of the following processes is used to monitor space signals of a space craft?

a. Stroboscope
b. Telemetry
c. Pyrometer
d. None of the above
Answer  Explanation 

ANSWER: Telemetry

Explanation:
No explanation is available for this question!


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

a. Pyrometer is a non-contact type of instrument
b. Stroboscope is a contact type of instrument
c. Micrometer is a non-contact type of instrument
d. All of the above
Answer  Explanation 

ANSWER: Pyrometer is a non-contact type of instrument

Explanation:
No explanation is available for this question!


4)   Which of the following causes is/are responsible for systematic errors?

a. non linearity
b. change in sensitivity
c. zero offset
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


5)   Imperial standard yard is made of

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

ANSWER: bronze

Explanation:
No explanation is available for this question!


6)   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 

ANSWER: line standard

Explanation:
No explanation is available for this question!


7)   Which of the following is a characteristic of End standard?

a. accuracy of ± 0.2 mm
b. accuracy of ± 0.050 mm
c. accuracy of ± 0.001 mm
d. accuracy of ± 1.00 mm
Answer  Explanation 

ANSWER: accuracy of ± 0.001 mm

Explanation:
No explanation is available for this question!


8)   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


a. 1-B, 2-A, 3-D, 4-C
b. 1-A, 2-C, 3-D, 4-B
c. 1-C, 2-D, 3-A, 4-B
d. 1-D, 2-A, 3-B, 4-C
Answer  Explanation 

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

Explanation:
No explanation is available for this question!


9)   Which of the following errors are also known as cumulative errors?

a. Random errors
b. Systematic errors
c. Gross errors
d. System interaction errors
Answer  Explanation 

ANSWER: Systematic errors

Explanation:
No explanation is available for this question!


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

1. Gross errors are known as compensating errors
2. Systematic errors are caused due to system interaction errors
3. Probability laws are followed by systematic errors


a. Only 1
b. Only 2
c. Only 3
d. All of the above
Answer  Explanation 

ANSWER: Only 2

Explanation:
No explanation is available for this question!