Electrical Engineering MCQs on Measurements – Electrical Measurement MCQs Part 9
Contents
The ammeter is
The ammeter is:
- Integrating instrument
- Indicating instrument
- Recording instrument
- None of these
Correct answer: 2. Indicating instrument
It is found that 10 A current flows through a resistor of 10 ohms
It is found that 10 A current flows through a resistor of 10 ohms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor is
- 150 W
- 300 W
- 600 W
- 75 W
Correct answer: 1. 150 W
The deflection angle in a gravity-controlled instrument is proportional
The deflection angle in a gravity-controlled instrument is proportional
- Measurand
- Sine inverse of measurand
- Sine of the measurand
- Square of the measurand
Correct answer: 2. Sine inverse of measurand
The error of an instrument is generally given as a percentage of
The error of an instrument is generally given as a percentage of
- Full-scale value
- Mean value
- Measured value
- Rms value
Correct answer: 1. Full-scale value
The repeat accuracy of an instrument can be judged from
The repeat accuracy of an instrument can be judged from
- Dynamic error
- Linearity error
- Standard deviation of error
- Static error
Correct answer: 3. Standard deviation of error