Measuring Instruments MCQ Question And Answer

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ITI ELECTRICIAN | Measuring Instruments MCQ

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1.
Which force is required to move the pointer from zero position in an indicating instrument?

Controlling force
Deflecting force
Air friction damping
Eddy current damping

2.
Which is the position to use the instrument provided with gravity control?

Any position
Vertical position
Inclined position
Horizontal position

3.
What is the name of the scale?

Linear scale
Coarse scale
Extended scale
Non-linear scale

4.
Which error is caused by the incorrect position of instrument reading?

Device error
Human error
Influence error
Switching error

5.
Which instrument is used to measure one ohm and below one ohm resistance value accurately?

Megohm meter
Multimeter (analog)
Shunt type ohm meter
Series type ohm meter

6.
What is the purpose of the 3rd terminal provided in a advanced megohm meter?

Get higher ohmic values
Pass the excess voltage to ground
Pass the excess current to ground
Get accurate readings without oscillation

7.
What is the name of the shunt resistance material?

Copper
Eureka
Nichrome
Manganin

8.
What is the reason for the moving coil meter having uniform scale?

Deflecting torque is directly proportional to the current
Deflecting torque is inversely proportional to the current
Deflecting torque is inversely proportional to the square of the current
Deflecting torque is directly proportional to the square of the current

9.
Which error if the energy meter disc rotating continuously on no load?

Speed error
Phase error
Friction error
Creeping error

10.
What is the effect on CT if its secondary is kept open?

CT primary burns out CT
Volt ampere capacity reduces
Volt ampere capacity increases
CT secondary winding burns out CT

11.
What is the purpose of variable resistor connected across shunt type ohm meter?

Avoid draining of battery
Minimize the error in reading
Adjust the current to safe value
Adjust the pointer to zero adjustment

12.
Which material is used to make control spring in measuring instruments?

Steel
Silver
Tinned copper
Phosphor bronze

13.
Which electrical effect that the single phase energy meter works?

Heating effect
Induction effect
Chemical effect
Electrostatic effect

14.
Which is the position to use the instrument provided with spring control?

Any position
Vertical position only
Inclined position only
Horizontal position only

15.
What is the name of meter?

AC multirange ammeter
DC multirange voltmeter
AC and DC multirange ammeter
AC and DC multirange voltmeter

16.
Which instrument is an example of an integrating instrument?

AC voltmeter
DC voltmeter
Energy meter
Tangent galvanometer

17.
How the creeping error is controlled in energy meter?

By reducing rated voltage
By increasing the inductive load
By adjusting the brake magnet position
By drilling two holes diametrically opposite on disc

18.
Why the scale of the moving iron instrument is having un-uniform scale?

Deflecting force is directly proportional to the Current
Deflecting force is inversely proportional to the Current
Deflection of force is directly proportional to the square of the Current ,
Deflection force is inversely proportional to the square of the Current

19.
Which source of measuring error is caused by the effect of magnetic fields?

Device error
Human error
Influence error
Switching error

20.
Which type of wattmeter?

Three element 4 wire wattmeter
Two element 3 phase wattmeter
Three element 3 phase wattmeter
Three phase two element with C.T & P.T

21.
Which type of instrument is used with air friction damping?

Moving coil instrument
Moving iron instrument
Induction type instrument
Dynamo meter type instrument

22.
Which type of energy meter works with netural connection?

Three phase two element
Three phase three element
Single phase single element
Three phase two element with CT & PT

23.
What is the type of frequency meter?

Weston type
Ratio meter type
Electro dynamic type
Mechanical resonance type

24.
What is the unit of sensitivity in instruments? ?

Volt / ohm
Ohm / volt
Ohm metre
Ohm / metre

25.
Why two straight holes are provided in the aluminium disc in energy meter?

To reduce the disc weight
For power factor correction
To prevent the flux leakage
To arrest the creeping error

26.
What is the name of the instrument?

Absolute instrument
Indicating instrument
Recording instrument
Integrating instrument

27.
Why damping force is required in a moving coil instrument?

Makes the needle movement faster
Helps the deflecting force to act fast
Brings the needle to its zero position
Arrests the needle without oscillations

28.
What is the function of soft iron core in a moving coil instrument?

Strengthens the deflection force
Controls the needle’s movement
Provides meter with maximum sensitivity
Provide uniform distribution of magnetic flux in air gap

29.
Which parameter is the cause for loading effect on measuring instruments?

Low accuracy
High sensitivity
Low sensitivity
Low influence error

30.
Name the type of instrument.

Attraction type moving iron
Repulsion type moving iron
Permanent magnet moving coil
Dynamo meter type moving coil

31.
Which meter is used to measure revolution per minute of a motor?

Tachometer
Energy meter
Ampere hour meter
Centre zero ammeter

32.
How to identify the moving iron type instrument?

No terminal marking
Terminal marked (+) only
One terminal coloured red
Terminal marked (+) and (-)

33.
Which is an absolute instrument?

Ammeter
Volt meter
Energy meter
Tangent galvanometer

34.
Which force produces movement of pointer in an indicating instrument?

Damping force
Deflecting force
Repulsion force
Controlling force

35.
What is the function of integrating instrument?

Displays the quantity
Indicates the quantity
Registers the quantity
Measures the quantity

36.
Which position an instrument using gravity control reads accurately?

Any position
Vertical position
Inclined position
Horizontal position

37.
Which quantity is measured by an electrodynamo type instrument?

Power
Current
Voltage
Resistance

38.
How to achieve maximum accuracy in measurement using analog instrument?

Keep low input impedance
Keep high input impedance
Use short connecting leads
Provide correct damping system

39.
Calculate the value of shunt resistance required to measure 10 mA with one mA meter?

3 
30 
0.3 
300 

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Measuring Instruments MCQ Question and Answer | ITI ELECTRICIAN

PLEASE SELECT YOUR LANGUAGE FROM BELOW

ITI ELECTRICIAN | Measuring Instruments MCQ

PLEASE SELECT YOUR LANGUAGE FROM BELOW

1.Which force is required to move the pointer from zero position in an indicating instrument?

2.Which is the position to use the instrument provided with gravity control?

3.What is the name of the scale?

4.Which error is caused by the incorrect position of instrument reading?

5.Which instrument is used to measure one ohm and below one ohm resistance value accurately?

6.What is the purpose of the 3rd terminal provided in a advanced megohm meter?

7.What is the name of the shunt resistance material?

8.What is the reason for the moving coil meter having uniform scale?

9.Which error if the energy meter disc rotating continuously on no load?

10.What is the effect on CT if its secondary is kept open?

11.What is the purpose of variable resistor connected across shunt type ohm meter?

12.Which material is used to make control spring in measuring instruments?

13.Which electrical effect that the single phase energy meter works?

14.Which is the position to use the instrument provided with spring control?

15.What is the name of meter?

16.Which instrument is an example of an integrating instrument?

17.How the creeping error is controlled in energy meter?

18.Why the scale of the moving iron instrument is having un-uniform scale?

19.Which source of measuring error is caused by the effect of magnetic fields?

20.Which type of wattmeter?

21.Which type of instrument is used with air friction damping?

22.Which type of energy meter works with netural connection?

23.What is the type of frequency meter?

24.What is the unit of sensitivity in instruments? ?

25.Why two straight holes are provided in the aluminium disc in energy meter?

26.What is the name of the instrument?

27.Why damping force is required in a moving coil instrument?

28.What is the function of soft iron core in a moving coil instrument?

29.Which parameter is the cause for loading effect on measuring instruments?

30.Name the type of instrument.

31.Which meter is used to measure revolution per minute of a motor?

32.How to identify the moving iron type instrument?

33.Which is an absolute instrument?

34.Which force produces movement of pointer in an indicating instrument?

35.What is the function of integrating instrument?

36.Which position an instrument using gravity control reads accurately?

37.Which quantity is measured by an electrodynamo type instrument?

38.How to achieve maximum accuracy in measurement using analog instrument?

39.Calculate the value of shunt resistance required to measure 10 mA with one mA meter?

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1.
Which force is required to move the pointer from zero position in an indicating instrument?

2.
Which is the position to use the instrument provided with gravity control?

3.
What is the name of the scale?

4.
Which error is caused by the incorrect position of instrument reading?

5.
Which instrument is used to measure one ohm and below one ohm resistance value accurately?

6.
What is the purpose of the 3rd terminal provided in a advanced megohm meter?

7.
What is the name of the shunt resistance material?

8.
What is the reason for the moving coil meter having uniform scale?

9.
Which error if the energy meter disc rotating continuously on no load?

10.
What is the effect on CT if its secondary is kept open?

11.
What is the purpose of variable resistor connected across shunt type ohm meter?

12.
Which material is used to make control spring in measuring instruments?

13.
Which electrical effect that the single phase energy meter works?

14.
Which is the position to use the instrument provided with spring control?

15.
What is the name of meter?

16.
Which instrument is an example of an integrating instrument?

17.
How the creeping error is controlled in energy meter?

18.
Why the scale of the moving iron instrument is having un-uniform scale?

19.
Which source of measuring error is caused by the effect of magnetic fields?

20.
Which type of wattmeter?

21.
Which type of instrument is used with air friction damping?

22.
Which type of energy meter works with netural connection?

23.
What is the type of frequency meter?

24.
What is the unit of sensitivity in instruments? ?

25.
Why two straight holes are provided in the aluminium disc in energy meter?

26.
What is the name of the instrument?

27.
Why damping force is required in a moving coil instrument?

28.
What is the function of soft iron core in a moving coil instrument?

29.
Which parameter is the cause for loading effect on measuring instruments?

30.
Name the type of instrument.

31.
Which meter is used to measure revolution per minute of a motor?

32.
How to identify the moving iron type instrument?

33.
Which is an absolute instrument?

34.
Which force produces movement of pointer in an indicating instrument?

35.
What is the function of integrating instrument?

36.
Which position an instrument using gravity control reads accurately?

37.
Which quantity is measured by an electrodynamo type instrument?

38.
How to achieve maximum accuracy in measurement using analog instrument?

39.
Calculate the value of shunt resistance required to measure 10 mA with one mA meter?