1) What is an electrical schedule?
a. A list or a plan of a building providing information of number of points in each room.
b. The list of all the electrical components required for a particular room
c. The list of electrical components along with their prices’
d. Both (B) and (C)
e. None of these
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Answer
Explanation
Related Ques
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ANSWER: A list or a plan of a building providing information of number of points in each room.
Explanation:
No explanation is available for this question!
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2) Which among the following information is required for a good estimation?
i. Availability of products
ii. Sources of production, vendor selection
iii. New products and their quality
iv. Prices and the discounts provided for each product
a. i and ii
b. ii, iii and iv
c. i, ii, iii and iv
d. only iv
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3) What is meant by contingencies?
a. The list of required components are included in this category
b. The list of vague and unforeseen items is included in this category
c. The list of components along with their discounted price is included in this category
d. Both (A) and (C)
e. None of these
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Answer
Explanation
Related Ques
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ANSWER: The list of vague and unforeseen items is included in this category
Explanation:
No explanation is available for this question!
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4) Which among the following mode of tendering is used by purchase department?
i. Open tendering
ii. Limited tender
iii. Spot tendering
iv. Global tendering
v. Proprietary tender
a. i, iii and iv
b. i, ii, iii and v
c. i and iv only
d. i, ii, iii, iv and v
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5) What is meant by petty purchase?
a. An item purchased from market by purchase assistant with proper formal order.
b. An item purchased from market by purchase assistant without proper formal order.
c. A single tendering purchase
d. None of these
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Answer
Explanation
Related Ques
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ANSWER: An item purchased from market by purchase assistant without proper formal order.
Explanation:
No explanation is available for this question!
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6) What is the maximum number of lighting points that can be connected in a circuit?
a. 5
b. 10
c. 8
d. 12
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7) What is the maximum load that can be connected in a circuit connecting only lighting points?
a. 500 watts
b. 750 watts
c. 800 watts
d. 1000 watts
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8) Which among these is a method of wiring?
a. Joint box
b. Tee system
c. Loop in system
d. Only a and c
e. All of these
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9) For what voltage levels are the screwed conduit circuits used?
a. Less than 250 V
b. For voltages between 250 V – 600 V
c. For voltages above 600 V
d. None of these
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10) Which material is used for wiring continuous bus bar?
a. Aluminium
b. Copper
c. Both (A) and (B)
d. None of these
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11) Which type of earthing is also called as ‘fire earthing’?
a. Plate earthing
b. Rod earthing
c. Strip earthing
d. All of these
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12) What is the dimension of the copper strips used for the strip earthing?
a. 25 mm * 4 mm
b. 25 mm * 3 mm
c. 30 mm * 4 mm
d. 30 mm * 3 mm
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13) What type of earthing is used by transmission lines?
a. Plate earthing
b. Rod earthing
c. Strip earthing
d. Both (a) & (c)
e. All of these
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14) What should be the value of earthing resistance for large power stations?
a. 1 Ω
b. 0.5 Ω
c. 2 Ω
d. 5 Ω
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15) What is the diameter of the GI pipe through which the earth wire needs to be taken out?
a. 13 mm diameter
b. 15 mm diameter
c. 19 mm diameter
d. 6 mm diameter
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16) Which set of rules are to be verified on completion of wiring on any new installation?
a. IE rules, 1950
b. IE rules, 1956
c. IE rules, 1960
d. None of these
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17) Branch circuit must not feed more than __________ points.
a. 12
b. 5
c. 10
d. 8
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18) The leakage current must not be more than ____________ of maximum supply current
a. 1 / 1000
b. 1 / 100
c. 1 / 5000
d. 1 / 500
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19) ______ should be provided as the working space around the main switchboard according to IE rule 51.
a. 0.914 m
b. 0.523 m
c. 0.638 m
d. 0.814 m
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20) At what temperature value is the insulation resistance corrected if it is measured to be different?
a. 30 ° C
b. 25 ° C
c. 22 ° C
d. 15 ° C
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21) Which among these is a type of internal wiring?
a. Cleat wiring
b. Conduit wiring
c. CTS wiring
d. Both (a) & (b)
e. All of these
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22) What is the maximum distance between the two successive cleats?
a. 0.25 m
b. 0.6 m
c. 0.9m
d. 1.25 m
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23) Which among these is a type of batten wiring?
a. Using metal sheathed wiring
b. Using TRS or PVC wires
c. Both (A) and (B)
d. None of these
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24) A black body when heated to ____________ emits the maximum energy in the visible spectrum range.
a. 5000 ° C
b. 3250 ° C
c. 6250 ° C
d. 8000 ° C
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25) Beyond what temperature does the gas vaporise and blackens the lamp in a gas filled lamp?
a. 550 ° C
b. 2000 ° C
c. 1000 ° C
d. 3000 ° C
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26) How many outlets are permitted in a power circuit?
a. 10 points
b. 5 points
c. 2 points
d. 1 point
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27) What is the maximum load that is permitted in a power circuit?
a. 5000 watts
b. 3000 watts
c. 2000 watts
d. 10000 watts
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28) Which statement is true, with respect to the motor installation?
a. Wood work is used for mounting switchgears.
b. All equipments used in power wiring shall be of iron clad.
c. Looping of conductors is usually made.
d. The length of flexible conduit is more than 3 m.
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Answer
Explanation
Related Ques
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ANSWER: All equipments used in power wiring shall be of iron clad.
Explanation:
No explanation is available for this question!
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29) What is the maximum length of the flexible conduit in motor installation?
a. Less than 1.25 m
b. Less than 2.25 m
c. Less than 3.5 m
d. Can exceed not more than 5 m.
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30) What is the factor of safety used for current ratings in a power installation?
a. 1
b. 1.5
c. 1.75
d. 2
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31) Which among these is a part of distribution system?
a. Feeders
b. Distributors
c. Service mains
d. All of these
e. None of these
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32) What is the maximum span upto which the wooden poles can be used?
a. 20 m
b. 50 m
c. 60 m
d. 100 m
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33) For what voltage is the H type of poles used?
a. 22 kV
b. 130 kV
c. 11 kV
d. All of these
e. None of these
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34) To prevent the decaying owing to snow and rain, the wooden poles are protected by _____________ cap at the top.
a. Aluminium
b. Zinc
c. Cement
d. All of these
e. None of these
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35) Steel rail poles of height 13 meters are used for transmission purpose of _________ voltage.
a. 33 kV
b. 11 kV
c. 22 kV
d. Both (a) & (b)
e. All of these
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36) Which type of cable does not require bedding?
a. Paper insulated lead covered cables
b. PVC cables
c. Both (A) and (B)
d. None of these
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37) Which among these is the main requirement of the insulating materials?
i. Non inflammable
ii. High permittivity
iii. High dielectric strength
a. i and ii
b. i and iii
c. ii and iii
d. i, ii and iii
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38) What is the dielectric constant of impregnated paper insulation?
a. 3.5
b. 2.5
c. 4.3
d. 3.8
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39) Which type of stress is developed in a belted type cable construction used for voltage above 22 kV?
a. Radial stress
b. Tangential stress
c. Electrostatic stress
d. Both (A) and (B)
e. All of these
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40) What should be the minimum depth of trench from the ground level for cables carrying a voltage between 3.3 kV and 11 kV?
a. 0.75 m plus radius of complete cable
b. 0.45 m plus radius of complete cable
c. 1.0 m plus radius of complete cable
d. All of these
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