
The Spring Material Used in A Spring Control Device Should Have the Following Property:
Should Have Low-Temperature Co-Efficient
Should Be Non-Magnetic
All of The Above
Should Have Low Specific Resistance
An Ammeter Is A …………….. Instrument.
A …………. The device Prevents the Oscillation of The Moving System and Enables The Latter To Reach Its Final Position Quickly.
Random Errors In A Measurement System Are Due To …………..
In measuring instruments, spiral springs are provided to
_____ Instruments are those which measure the total quantity of electricity delivered in a particular time.
Random Errors In A Measurement System Are Due To …………..
The Function of Shunt In An Ammeter Is To …………..
The Multiplier and The Meter-Coil in A Voltmeter Are In …….
A Moving Iron Instrument Can Be Used For ……..
An Ammeter Is Convertible To A Voltmeter By
In A Moving Coil Instrument, The Deflecting Torque Is Proportional To,
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100Ohm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100Ohm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used?
The Indicating Instruments With Linear Scale Is ……….
Range of an electrical instrument depends on __________
Voltage
Resistance
Power
Current
The Eddy Current Torque On A Metallic Disc Rotating Between Poles Of Permanent Magnet In Energy Meter Is Directly Proportional To The Angular Velocity Of The Disc.
true
false
As Instrument Reading Is Compared with Higher Accuracy Instrument Is Known As
Calibration
Accuracy
Repeatability
Measurement
A …………. The device Prevents the Oscillation of The Moving System and Enables The Latter To Reach Its Final Position Quickly.
Damping
Deflecting
Controlling
All of The Above
Moving system of the induction type single phase energy meter has _________
Light aluminum disc
Heavy aluminum disc
Medium aluminum disc
No aluminum disc
A moving-coil permanent-magnet instrument can be used as _____ by using a low resistance shunt.
Ammeter
Voltmeter
Flux-meter
Ballistic galvanometer
The Resistance In The Circuit Of The Moving Coil Of A Dynamometer Should Be ……
HIGH
ZERO
Low
None of The Above
In A Moving Iron Meter, The Deflecting Torque Is Proportional To
Square Of The Current Through The Coil
Current Through The Coil
Sine Of The Measurand
Square root Of The Measurand
Wattmeter Reading Has Errors Induced By _________
Mutual Inductance
Resistance
Self-Capacitance
Self-Inductance
A shunt is a __________
Very low resistance
Very high resistance
Medium resistance
High resistance
The Minimum Number of wattmeter's Required To Measure Power In An Unbalanced Three-Wire System Is
Two
One
Three
Four