Electrical Measurements Advanced Problems Indicating Instruments 1 Online Exam Quiz
Electrical Measurements Advanced Problems Indicating Instruments 1 GK Quiz. Question and Answers related to Electrical Measurements Advanced Problems Indicating Instruments 1. MCQ (Multiple Choice Questions with answers about Electrical Measurements Advanced Problems Indicating Instruments 1
A meter has a full scale of 90° at a current of 1 A. This meter has a perfect square law response. What is the current when the deflection angle is 45°?
Options
A : 0.5 A
B : 0.25 A
C : 0.707 A
D : 0.67 A
Two ammeters, one with a full-scale current of 1 mA and internal resistance of 100 ? and other a full-scale current of 10 mA and internal resistance of 25 ? are in parallel. What is the total current, these two meters can carry without the reading out of scale in any meter?
Options
A : 1 mA
B : 10 mA
C : 11 mA
D : 5 mA
A 10 mA PMMC ammeter reads 4 mA in a circuit. Its bottom control spring snaps suddenly. The meter will now show __________
Options
A : 10 mA
B : 8 mA
C : 2 mA
D : Zero
The full-scale deflection current of an ammeter is 4 mA and its internal resistance is 400?. If this meter is to have a full deflection of 10 A, what is the value of the shunt resistance to be used?
Options
A : 49.99 ?
B : 0.16 ?
C : 1.5 ?
D : 2.6 ?
The full-scale deflection current of a meter is 4 mA and its internal resistance is 400?. This meter is to have full deflection when 400 V is measured. What is the value of the series resistor to be used?
Options
A : 99.90 k?
B : 100 k?
C : 99.60 k?
D : 100 ?
Moving Iron Instrument can be used as ____________
Options
A : An ammeter for measuring DC as well as AC
B : For measuring DC current and voltages only
C : An ammeter and a voltmeter for measuring DC as well as AC
D : For measuring AC current and voltages only
In a moving iron meter, the deflection torque is proportional to?
Options
A : Square of the current through the coil
B : Current through the coil
C : Sine of measurand
D : The Square root of the measurand
The scale of a dynamometer type instrument marked in terms of RMS value would be__________
Options
A : Uniform throughout
B : Non-uniform and crowded near the full scale
C : Non-uniform and crowded at the beginning
D : Non-uniform and crowded around mid-scale
The standardization of AC potentiometer is done by ____________
Options
A : Using a DC standard source and d’ Arsonval galvanometer
B : Using AC standard sources and transfer instruments
C : Using a standard AC voltage source
D : Using a DC standard source and transfer instruments
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