1081. A 150 v moving iron voltmeter of accuracy class 1.0 reads 75 V when used in a circuit under standard conditions .The Greatest conceivable rate blunder in the perusing is :

A. 0.5
B. 1.0
C. 2.0 *
D. 4.0

1082. Threshold of sensitivity in reference to instrument is :

A. The tiniest signal that results in output that can be detected *
B. The largest signal which can be measured
C. The value of sensitivity on the highest scale
D. The lowest possible sensitivity value

1083. Sensitivity inaccuracy of a recording instrument means the :

A. Amount to which the instrument is unable to detect repeat readings
B. Most extreme blunder in responsiveness showed by a pen *
C. Smallest signal required to give detectable output
D. Amount of input needed to give unit pen deflection

1084. Accuracy is defined as the :

A. Measure of the consistency of reproducibility of the measurement
B. Closeness with which an instrument reading approaches the true value of the quantity being measured *
C. Smallest measurable input change
D. Ratio of the change in output signal of an instrument to a change in th input

1085.The degree of reproducibility among several independent measurement of same true value under references conditions is known as :

A. Accuracy
B. Precision *
C. linearity
D. Calibration

1086. Which one of the following statements is not correct ?

A. It is not possible to have precise measurement which are not accurate *
B. Correction in measurement requires both accuracy and precision
C. The best expressions for measuring precision are reproducibility and consistency.
D. An instrument with 2 percent accuracy is superior to one with 5 percent accuracy.

1087. Which one of the following statements is correct?
When the instrument is used incorrectly during the measurement procedure, one or more of the following consequences occur:

A. Systematic error
B. Random error
C. Gross error *
D. Instrument error

1088. Systematic error are :

A. Instrumental error
B. Environmental errors
C. Observational errors
D. All of the above *

1089. Which one of the following statements correctly represents the systematic error ?

A. These mistakes can be determined from the subtleties of the instrument *
B. These are the residual errors
C. These errors may occur under controlled conditions
D. These are the mistakes committed by the examinations

1090. A set of observation has a wide range so it has :

A. Low accuracy
B. Low precision *
C. High accuracy but low precision
D. High precision but low accuracy