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ELECTRICAL INSTRU & FEEDBACK CONTROL OBJCTVS

Authored by JEZZMEY VERMI

Engineering

Professional Development

ELECTRICAL INSTRU & FEEDBACK CONTROL OBJCTVS
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36 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which of the following can be used to measure small dc generated voltages?

galvanometer

thermocouple

pyrometer

voltmeter

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

if moving-iron type ammeter is connected to a circuit, and then its connection was interchanged, THEN

it will give no deflection

it will deflect in opposite direction

its reading will not changed

it will burn out

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

an electrodynamic meter can be used to measure _____

AC voltage

DC voltage

AC as well as DC voltage

DC voltage but for AC voltage needs rectification

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

for measuring the resistance of the elements of an attenuator which of the following is the best choice?

maxwell bridge

ohmmeter

megger

wheatstone bridge

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the most efficient form of a damping employed in electrical measuring insturment is ___

air friction

fluid friction

eddy current

none of these

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

due to which of the following reason excessive bandwith in control system should be avoided?

has no considerable effect

it leads to slow speed response

it leads to a low relative stability

noise is proportional to band width

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a good control system will have ALL the following features EXCEPT:

good accuracy

sufficient power handling capacity

slow response

good stability

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