Electrical Quiz MCQ - Set 06

Quiz Questions

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01. A common type of cable termination used for ribbon cables in panel building is

     (A) Pin

     (B) Lug

     (C) Insulation displacement

     (D) Screw

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02. Q8 BS 7671 provides appropriate advice on

     (A) Heights of panels

     (B) Design of panels

     (C) Environmental conditions

     (D) Instrumentation

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03. Which of the following is a statutory piece of legislation?

     (A) BS 7671

     (B) IEE Guidance Notes

     (C) Electricity at Work Regulations

     (D) IEE On-Site Guide

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04. The most suitable item of equipment to mark a straight line in order to install a horizontal conduit over a distance of 4 m is a

     (A) Plumb line

     (B) Spirit level

     (C) Steel tape

     (D) Chalk line

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05. An earthing arrangement that has a PEN conductor is

     (A) TN-C-S

     (B) TN-S

     (C) TT

     (D) IT

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06. If a circuit protective device requires 200 A in order to disconnect in the required time, the overall impedance of the earth fault path for a 230 V circuit protected by the device must not exceed

     (A) 0.86 O

     (B) 1.15 O

     (C) 2.15 O

     (D) 2.30 O

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07. The ratio of the true power to apparent power in an ac circuit is the

     (A) Power consumption

     (B) Harmonic current

     (C) Power factor

     (D) Reactive power

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08. The purpose of a bonding conductor is to provide

     (A) An earth fault path

     (B) An equal potential zone

     (C) Short circuit protection

     (D) Overload protection

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09. A mass of 20 kg is to be raised by a hoist 2 m in 30 seconds. Assuming no losses, the power required to raise this load is

     (A) 13.08 Watts

     (B) 196.2 Watts

     (C) 392.4 Watts

     (D) 1200 Watts

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10. The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA. The power drawn by the circuit is

     (A) 12 kW

     (B) 22 kW

     (C) 32 kW

     (D) 64 kW

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11. Higher the self-inductance of a coil,

     (A) Lesser its weber-turns

     (B) Lower the e.m.f. induced

     (C) Greater the flux produced by it

     (D) Longer the delay in establishing steady current through it

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12. Dielectric strength of a material depends on

     (A) Moisture content

     (B) Temperature

     (C) Thickness

     (D) All of the above

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13. The least share of power is provided in India, by which of the following power plants?

     (A) Diesel power plants

     (B) Thermal power plants

     (C) Hydroelectric power plants

     (D) Nuclear power plants

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14. One Maxwell is equal to

     (A) 10^8 webers

     (B) 10^-4

     (C) 10^4

     (D) 10^-8

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15. D.C. machines designed with a large value of air gap length have

     (A) Worst, ventilation

     (B) Poor ventilation

     (C) Better ventilation

     (D) None of the above

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 Next Quiz Tests:

Set 01

Set 02

Set 03

Set 04

Set 05

Set 06

Set 07

Set 08

Set 09