ELECTRICIAN 1ST TEST

Which is the angle of Single Phase?

• 90°

• 120°

• 180°

• 360°

Which classification of instrument tangent galvanometer belongs?

• Secondary instrument

• Absolute instrument

• Recording instrument

• Integrating instrument

3 . Which electrical effect, the moving iron instrument works?

• Heating effect

• Chemical effect

• Magnetic effect

• Induction effect

Which meter is used to measure only DC quantities?

• Moving iron repulsion type instrument

• Moving iron attraction type instrument

• Induction type instrument

• Moving coil instruments

Which meter is used to measure the low and medium value of resistance?

• Shunt type ohm meter

• Megger

• Multimeter

• Series type ohm meter

What is the disadvantage of induction type wattmeter?

• It is used only in AC

• It is used only in DC

• Cannot be used for higher current

• Cannot be used on both AC and DC

Which is the advantage of dynamometer wattmeter?

• Uniform scale

• Less expensive

• High sensitivity

• Consumes less power

Which factor the accuracy of ohmmeter depends?

• Type of scale

• Condition of battery

• Sensitivity of the meter

• Value of resistance to be measured

What is the meter constant of an energy meter?

• Multiplication factor of energy meter

• Number of revolutions per KWh

• Initial reading of KWh

• Final reading of KWh meter

Which meter is integrating type instrument?

• Wattmeter

• Ammeter

• Multimeter

• Energymeter