Estimation of Electrical Wiring Multi Choice Questions & Answers

Estimation of Electrical Wiring Multi Choice Questions & Answers Points : estimation of electrical wiring multi choice questions and answers, estimation of electrical wiring mcqs, objective Multi Choice Questions & Answers

1. In bath rooms, all non-electrical metal work including must be bonded together and earthed.
   (a) Bath tubs
   (b) Water pipes
   (c) Sinks
   (d) All of above
2. Do not exceed per circuit
   (a) 800 watts
   (b) 10 lights or fans
   (c) 15 lights
   (d) All of above
3. Do not exceed per circuit - numbers of plug points for power circuit.
   (a) 2
   (b) 3
   (c) 4
   (d) 1
4. Use heavily insulated, flexible cables for _______ appliances.
   (a) Domestic & Commercial
   (b) Industrial
   (c) Commercial
   (d) Domestic
5. Do not keep pump motors exposed to open atmosphere, provide
   (a) Weather proof covers
   (b) Tarpaulin
   (c) Cover
   (d) Canvas
6. Provide lighting arresters, for High Rise Buildings having IR values
   (a) Must be 10 M?
   (b) Mast be 15 M?
   (c) Must be 5 M?
   (d) Must be 1 M?
7. Provide Earth Leakage Circuit breakers, for loads exceeding
   (a) 15 K Watts
   (b) 25 K Watts
   (c) 05 K Watts
   (d) 0.5 K Watt
8. If Generators are used, connect them in a standard way and ensure that it is not _____ with EB supply.
   (a) Paralleled
   (b) Series
   (c) Compounded
   (d) None of above
9. Overhead charges will generally he assumed as ______ of the total cost.
   (a) 1%to2.5%
   (b) 10%to25%
   (c) 20%to25%
   (d) 15%to25%
10. Tool charges are usually _______ of the total cost.
    (a) 13 to 15%
    (b) 10 to 15%
    (c) 5 to 10%
    (d) 3 to 5%
11. Wiring of All multi-storied buildings above 15.0 M Height must be inspected by electrical Inspector and he/she has to approve.
    (a) Rule 60 A
    (b) Rule 50 A
    (c) Rule 70 A
    (d) None of above
12. Any wiring system has to Past for
    (a) 10 years
    (b) 12 years
    (c) 15 years
    (d) 25 years
13. In wiring system ____quality materials are to be used.
    (a) High
    (b) Medium
    (c) Low
    (d) Super
14. High _____workmanship must be executed so materials cost and labour charges will be high.
    (a) Quality
    (b) Rise
    (c) Tension
    (d) None of above
15. For loads above, _______ single phase supply must be arranged.
    (a) 15KW
    (b) 10KW
    (c) 5KW
    (d) 4KW
16. The wiring should be done very close to the
    (a) Walls
    (b) Ceiling
    (c) Floor
    (d) Slab
17. For final sub-circuits, use 1 sq. mm of copper or ___Aluminium for earth conductor,
    (a) sq.mm
    (b) sq.mm
    (c) sq. mm
    (d) sq. mm
18. The bottom of ceiling fan should have a mm. clearance of
    (a) 3m
    (b) 4m.
    (c) 3.5 m
    (d) 2.7m.
19. The consumer should provide ONE earth electrode for single and for three supplies.
    (a) Three
    (b) Two
    (c) Four
    (d) None
20. If than one electrode is provide, all earth electrodes must be linked for combined ______ resistance.
    (a) Low
    (b) High
    (c) Medium
    (d) None of above
21. Use a minimum of______ (Tinned- Copper) for earth leads.
    (a) 10 SWG TC
    (b) I2SWGTC
    (c) 16 SWG TC
    (d) 14 SWG TC
22. All non-current carrying metallic parts must be provided with _____separate and distinct earth wires.
    (a) 4
    (b) 3
    (c) 2
    (d) None of above
23. Allow 10% of total conduit length for wastage in any system.
    (a) 2%
    (b) 3%
    (c) 15%
    (d) 10%
24. The length of wire can be taken as ______________the length of conduit for looping system and 2 times for junction box system.
    (a) times
    (b) 2.0 times
    (c) 2.5 times
    (d) 3.5 times
25. The length of the looping wire etc. in switch boxes shall not be lesser than _____of the height of the box itself.
    (a) times
    (b) time
    (c) 0.5 times
    (d) 0.25 times