Errors in Measurements & Their Statistical Analysis – Exercise – 1

1. The deviation of a reading from the expected value :

(a) accuracy
(b) precision
(c) error
(d) difference

Answer
Answer : (c)
Explanation
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2. Errors due to frictions of the meter movement, incorrect spring tension, improper calibration or faulty instruments :

(a) Observational errors
(b) Environmental errors
(c) Instrument errors
(d) Gross errors

Answer
Answer : (c)
Explanation
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3.  When an instrument is subjected to harsh environments such as high temperature, strong magnetic, electrostatic or electromagnetic field, it may have detrimental effects and cause errors known as :

(a) Observational errors
(b) Environmental errors
(c) Instrument errors
(d) Gross errors

Answer
Answer : (b)
Explanation
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4.  Errors introduced by the observer or user.

(a) Observational errors
(b) Environmental errors
(c) Instrument errors
(d) Gross errors

Answer
Answer : (a)
Explanation
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5. _______ is the difference between the true value of quantity and the value indicated by instrument.

(a) Dynamic error
(b) Fidelity
(c) Measurement lag
(d) Speed of response

Answer
Answer : (a)
Explanation
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