Electrical Quiz MCQ - Set 05 Electrical Quiz Quiz Questions 01. Which of the following are appropriate tests for a completed panel? (A) Flash testing of components (B) Insulation resistance and polarity (C) Inspection of conductors for current carrying capacity (D) Identification of conductors 02. The usual method of insulating core laminations is (A) Low reluctance silicon steel (B) Surface oxidization (C) High frequency air cores (D) Cellulose paper 03. A moving coil meter is not used on an ac circuit because (A) It cannot read very small variations (B) The direction of the deflection depends upon the direction of the current (C) It is non linear (D) It does not use the damping effect 04. A residual current device will disconnect under (A) Short circuit conditions only (B) Both earth fault and short circuit conditions (C) Earth fault conditions only (D) Overload conditions only 05. On a large construction site, inductions are carried out for new members of staff in order to inform them of the (A) Location of the canteen (B) Requirements within BS 7671 (C) Fire safety procedure (D) Location of the nearest wholesaler 06. Carbon-dioxide fire extinguishers are indicated by the color code (A) Black (B) Red (C) Beige (D) Blue 07. In a shunt-wound motor the field coil is connected in (A) Series with the armature (B) Series with the motor (C) Parallel with the armature (D) Parallel with the motor 08. It is necessary to avoid skin contact with quartz lamps, as it (A) Reduces the life of the lamp (B) Could cause burns (C) Generates excessive heat (D) Lengthens lampworking life 09. Which of the following is a transmission voltage? (A) 400 kV (B) 33 kV (C) 400 V (D) 230 V 10. The white or grey PVC outer layer of a twin and CPC flat thermoplastic (PVC) cable is the (A) Conductor (B) Insulation (C) Conductor (D) Sheath 11. To ensure that a particular item of electro technical equipment meets a particular British Standard or BSEN Harmonized Standard, the best source of information would be the (A) Manufacturer of the equipment (B) British Standards Institute (C) Institute of Electrical Engineers (D) Supplier of the equipment 12. When the field windings of an electrical machine are not connected to its own armature, it is known as (A) Self- excited (B) Polyphase (C) Separately-excited (D) Synchronous 13. Low-pressure mercury- vapor lamps should be disposed of by (A) Throwing in a skip (B) Putting in a glass recycle point (clear glass only) (C) Using a suitable lamp crusher (D) Putting in the refuse bins, which are collected weekly 14. In order to prove safe isolation of an electrical circuit, it is essential to use (A) A multi-meter (B) An insulation resistance tester (C) An approved voltage indicator (D) A low reading ohmmeter 15. The type of fire extinguisher, which would not be suitable for flammable liquids, is (A) Dry powder (B) Water (C) Carbon dioxide (D) Foam Submit Test Next Quiz Tests: Set 01 Set 02 Set 03 Set 04 Set 05 Set 06 Set 07 Set 08 Set 09
