Electrical Installation, Estimation & Costing Test Questions - Set 3

1)   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
Answer  Explanation 

ANSWER: All of these

Explanation:
No explanation is available for this question!


2)   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
Answer  Explanation 

ANSWER: 0.6 m

Explanation:
No explanation is available for this question!


3)   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
Answer  Explanation 

ANSWER: Both (A) and (B)

Explanation:
No explanation is available for this question!


4)   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
Answer  Explanation 

ANSWER: 6250 ° C

Explanation:
No explanation is available for this question!


5)   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
Answer  Explanation 

ANSWER: 2000 ° C

Explanation:
No explanation is available for this question!


6)   How many outlets are permitted in a power circuit?

a. 10 points
b. 5 points
c. 2 points
d. 1 point
Answer  Explanation 

ANSWER: 2 points

Explanation:
No explanation is available for this question!


7)   What is the maximum load that is permitted in a power circuit?

a. 5000 watts
b. 3000 watts
c. 2000 watts
d. 10000 watts
Answer  Explanation 

ANSWER: 3000 watts

Explanation:
No explanation is available for this question!


8)   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.
Answer  Explanation 

ANSWER: All equipments used in power wiring shall be of iron clad.

Explanation:
No explanation is available for this question!


9)   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.
Answer  Explanation 

ANSWER: Less than 1.25 m

Explanation:
No explanation is available for this question!


10)   What is the factor of safety used for current ratings in a power installation?

a. 1
b. 1.5
c. 1.75
d. 2
Answer  Explanation 

ANSWER: 2

Explanation:
No explanation is available for this question!