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

Estimation of Electrical Wiring True & False

Estimation of Electrical Wiring True and False Points : estimation of electrical wiring true and false estimation of electrical wiring objective True & False

1. Anyhow material handling charges should not be more than 5% (max.) of material cost. (T)
2. Overhead charges will generally be assumed as 10% to 25% of the total cost. (F)
3. In large installations, tool charges aren’t be included. (F)

Estimation of Electrical Wiring blanks

Estimation of Electrical Wiring blanks: Points : estimation of electrical wiring fill in the blanks, estimation of electrical wiring objective Fill in the blanks

1. Length of conduit required can be calculated by going through the plan of the building.
2. Allow 10% of total length for wastage in any system.
3. To calculate the length of wire, take the length of conduit after allowing wastage.

Estimation of Electrical Wiring Short Question and Answer

Estimation of Electrical Wiring Short Question and Answer Points : estimation of electrical wiring short question and answer Q # 1: What should be the resistance of earth continuity conductor in the completed installation? Answer: Circuit-breaker measured from the connection with the earth electrode to any points in the earth continuity conductor in the completed installation shall not exceed one ohm. Q # 2: What should be the estimate of length of wire for wiring? Answer: The length of wire can be taken as 2.5 times the length of conduit for looping system and 2 times for junction box system. Q # 3: What should be the estimate of length of wire for switch boxes? Answer: The length of the looping wire etc. in switch boxes shall not be lesser than 0.5 times of the height of the box itself.

Power Wiring Installations

Power Wiring Installations Points : power wiring installations, electrical power wiring installations

1. I.E.E. rules Nos. 22, 50, 51 are to be satisfied,
2. Wiring is to be installed either in surface conduits system or recessed conduit system.
3. Earth wire of 8 S.W.G. must run along the pipes.

Points To Be Considered While Preparing The Estimate

Points To Be Considered While Preparing The Estimate of Electrical Wiring Points : points to be considered while preparing the estimate, building wiring estimating & costing, estimate the installation of an electrical distribution, electrical design and estimation Points To Be Considered While Preparing the Estimate

1. Length of conduit required can be calculated by going through the plan of the building.
2. Allow 10% of total length for wastage in any system.
3. To calculate the length of wire, take the length of conduit after allowing wastage.
4. The length of wire can be taken as 2.5 times the length of conduit for looping system and 2 times for junction box system.

Fans and Exhaust Fans

Fans and Exhaust Fans Points : fans and exhaust fans, exhaust fans, testing of installation, insulation resistance test, testing of earth continuity path, earthed electrode resistance test Fans and Exhaust Fans Fans The fans shall be suspended from hooks or shackles by means of suspension rods. Rubber insulators (shackle) shall be provided between the hooks and suspension rods. There shall be no joints in the suspension rod. The canopies on top of the suspension rod shall hide the suspension. The lead-in-wire from the ceiling rose shall be of 1.5 mm2 size and shall be protected from abrasion. The fan blades shall be kept at least 2.75 metres above the floor unless specified otherwise.

Miniature Circuit Breakers

Miniature Circuit Breakers Points : miniature circuit breakers, distribution boards Miniature Circuit Breakers The current limiting miniature circuit breakers shall be I.S.I. marked of category M 91M 3 conforming to International standards of IEC: 8828-1978, BS-3871 part 1 and VDE-0641.

(i) Standard: “Standard KOPP” brand from 0.5 A to 63A
M 9 SP, SPN, DP, TP, TPN (four poles).

(ii) M.D.S.: “Load Konkatk” brand S 210-series, from