1. A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
A. ammeter
B. voltmeter
C. flux-meter
D. ballistic galvanometer
✅ The correct answer is option A.
Measurement and Instrumentation MCQs
2. Commonly used standard capacitor is______________?
A. spherical type
B. concentric cylindrical type
C. electrostatic type
D. multilayer parallel plate type
✅ The correct answer is option B.
3. A sensitive galvanometer produces large deflection for a_______________?
A. small value of current
B. large value of current
C. large value of power
D. large value of voltage
✅ The correct answer is option A.
4. If an instrument has cramped scale for larger values, then it follows________________?
A. square law
B. logarithmic law
C. uniform law
D. none of the above
✅ The correct answer is option B.
5. The gravity controlled instrument has crowded scale because current is proportional to________________?
A. balancing weight
B. deflection angle
C. sine of deflection angle
✅ The correct answer is option C.
6. Systematic errors are_________________?
A. instrumental errors
B. environmental errors
C. observational errors
D. all of the above
✅ The correct answer is option D.
7. Volt box is a component to_____________?
A. extend voltage range
B. measure voltage
C. compare voltage in a box
D. none of the above
✅ The correct answer is option A.
8. Which of the following essential features is possessed by an indicating instrument?
A. Deflecting device
B. Controlling device
C. Damping device
D. All of the above
✅ The correct answer is option D.
9. Which of the following properties a damping oil must possess ?
A. Must be a good insulator
B. Should be non-evaporating
C. Should not have corrosive action upon the metal of the vane
D. The viscosity of the oil should not change with the temperature
✅ The correct answer is option E.
10. According to application, instruments are classified as_____________?
A. switch board
B. portable
C. both A. and B.
D. moving coil
✅ The correct answer is option C.