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
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Answer
Explanation
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ANSWER: theories related to nature
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: Telemetry
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: Pyrometer is a non-contact type of instrument
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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5) Imperial standard yard is made of
a. platinum alloy
b. platinum iridium alloy
c. bronze
d. all of the above
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Answer
Explanation
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ANSWER: bronze
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: line standard
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: accuracy of ± 0.001 mm
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: 1-C, 2-D, 3-A, 4-B
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: Systematic errors
Explanation:
No explanation is available for this question!
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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
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Answer
Explanation
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ANSWER: Only 2
Explanation:
No explanation is available for this question!
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