C:-system does not have any storage elements
D:-system has a very low energy stored
Correct Answer:- Option-B

Question70:-The damping ratio of a system with a characteristic equation (s?+25=0)
indicates that the system is

A:-under damped

B:-over damped
C:-undamped

D:-critically damped
Correct Answer:- Option-C

Question71:-A 0 - 250 V voltmeter has an error of +2% of full-scale deflection. What
would be the range of readings if true voltage is 50 V?

A:-49V-51V
B:-45V-55V

C:-40 V-50V

D:-None of the above
Correct Answer:- Option-B

Question72:-In a measurement using an instrument with D'Arsonval movement, the
friction in bearings of moving components causes an incorrect reading. This is an
example of:

A:-Gross error
B:-Systematic error
C:-Random error
D:-Observational error
Correct Answer:- Option-B

Question73:-It is required that in an electrical substation, voltage of a backup
battery bus need to be continuously monitored for 24 hours daily, and the data
need to be used for further analysis. Which type of instrument is most suitable for
this application?

A:-A moving coil indicating voltmeter
B:-A moving iron integrating voltmeter
C:-A recording voltmeter

D:-An electrostatic indicating voltmeter
Correct Answer:- Option-C

Question74:-An instrument is used for measuring the Ampere-Hour of a battery
charging system. Which class of measuring instruments it belongs to?

A:-Integrating instrument

B:-Recording instrument