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Errors in Measurements & Their Statistical Analysis – 1 – 1

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

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

ANSWER

EXPLANATION

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

EXPLANATION

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

EXPLANATION

4.  Errors introduced by the observer or user.

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

ANSWER

EXPLANATION

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

EXPLANATION

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