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MCQ on Electrical Unit – 1

June 10, 2017 by admin

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 1. The rating of generator is expressed in terms of
(A) kW.
(B) kVA.
(C) kVAR.
(D) MW.

Answer ⇓

           A 

 2. The rating of prime mover is expressed in terms of
(A) kW.
(B) kg.
(C) kVA.
(D) tones.

Answer ⇓

           A 

 3. The relative permittivity has the following unit?
(A) F/m.
(B) m/F.
(C) Wb/m.
(D) No unit.

Answer ⇓

           D 

 4. The S.I. unit of power is
(A) Henry.
(B) coulomb.
(C) watt.
(D) watt-hour.

Answer ⇓

           C 

 5. One newton meter is same as
(A) one watt.
(B) one joule.
(C) five joules.
(D) one joule second.

Answer ⇓

           B 

 6. The unit of luminous flux is ?
(A) lux.
(B) candela.
(C) weber.
(D) lumen.

Answer ⇓

           D 

 7. Temperature co-efficient of resistance is expressed in terms
(A) ohms/°C.
(B) mhos/ohm°C.
(C) ohms/ohm°C.
(D) mhos/°C.

Answer ⇓

           C 

 8. The unit of luminous flux is ?
(A) lux.
(B) candela.
(C) weber.
(D) lumen.

Answer ⇓

           B 

 9. The unit of magnetic flux density is the
(A) Weber.
(B) Weber per metre.
(C) Ampere per metre.
(D) Tesla.

Answer ⇓

           D 

 10. The unit of inductance is
(A) henry.
(B) weber.
(C) weber-ampere.
(D) farad.

Answer ⇓

           A 

 11. Static capacitor are rated in term of
(A) kVAR.
(B) kW.
(C) kVA.
(D) kWh.

Answer ⇓

           A 

 12. Ω (ohm) is the Unit of
(A) Resistance.
(B) Inductive Reactance.
(C) Capacitive Reactance.
(D) All of the above.

Answer ⇓

           A 

 13. The coulomb is a unit of
(A) Energy.
(B) Voltage.
(C) Power.
(D) Quantity of electricity.

Answer ⇓

           D 

 14. The unit of quantity of electricity is the
(A) volt.
(B) coulomb.
(C) ohm.
(D) joule.

Answer ⇓

           B 

 15. The unit of current is the
(A) Volt.
(B) Coulomb.
(C) Joule.
(D) Ampere.

Answer ⇓

           D 

 16. The ohm is the unit of
(A) Charge.
(B) Resistance.
(C) Power.
(D) Current.

Answer ⇓

           B 

 17. The unit of resistivity is
(A) ohms.
(B) ohm millimetre.
(C) ohm metre.
(D) ohm/metre.

Answer ⇓

           C 

 18. Unit of clastance is
(A) farad.
(B) daraf.
(C) mho.
(D) tesla.

Answer ⇓

           B 

 19. Siemens or Mho is the unit of
(A) Conductance.
(B) Admittance.
(C) Both 1 & 2.
(D) None of the above.

Answer ⇓

           A 

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