GOVERMENT POLYTECHNIC GANDHINAGAR
ELELCTRICAL
IMP QUSTIONS FOR WCC
Subject: WIRING ESTIMATING, COSTING AND CONTRACTING
1. List functions of purchase committee.
2. State advantages of preventive maintenance.
3. Draw a service pole with stay and earthing arrangement and mention
names of each component.
4. Explain types of conductor material used in overhead transmission and
distribution line.
5. Explain factors affecting the size of line conductors.
6. Write down types of service connection and explain.
7. Draw and Explain underground service connection.
8. Explain types of insulators for overhead lines.
9. Define and explain schedule of rates (SOR).
10.Compare scientific and approximate estimation.
11.Explain in detail steps for industrial wiring estimation.
12.Explain use of any 8 tools used for wiring.
13.Explain abilities of a good estimator.
14.Compare different types of wiring.
15.Explain circuit continuity test in detail.
16.What is the Importance of sub circuit?
17.Write down four steps to estimate domestic wiring.
18.Explain salient features of industrial wiring.
19.Draw service connection for single storied building.
20.Draw the figure of anchor stay or guy wire.
21.Explain the function of cross arm in overhead line with figure.
22.State and explain types of Estimations.
23.Explain overhead charges in detail.
24.Write down effect of working condition on labour cost. Explain any four.
25.Give definition of Tender and state the advantages of purchase using
tender method.
26.State any three I.E. rules pertaining to overhead line.
27.Draw figure of D.O.L. starter and write down its parts name.
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28.Draw and explain staircase wiring.
29.Explain factors of Estimations of repairing of electrical equipments.
30.Explain earnest money deposit.
31.Calculate full load current of 10 HP 3-phase induction motor.
32.List parts of table fan and explain any two.
33.Explain earthing of transmission and distribution lines.
34.Give meaning of service connection and explain 3-phase 4 wire distribution
system.
35.Explain fault in house wiring and its remedies.
36.Explain reason of faults occurrence in electrical equipments
37.Install 2 lamps, 2 tube light, 2 ceiling fan, one 15 A socket in 4 x 4x 4 metre
drawing hall. Calculate current and draw wiring diagram.
38.Explain circuit continuity test in detail.
39.Write down types of service connection. Which are the condition for
implement of service connection?
40.Explain Earth leakage circuit breaker and Miniature circuit break
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