Power System - I (3140914) MCQs

MCQs of Mechanical Features and Design of Overhead Transmission Line

Showing 21 to 30 out of 108 Questions
1 2 3 4 5 6
21.
ACSR conductor implies
(a) Aluminum conductor steel reinforced
(b) All conductors surface treated and realigned
(c) Anodized core steel reinforced
(d) None of above
Answer:

Option (a)

22.
The steel cores used in ACSR conductors are usually
(a) Alloy steel
(b) Galvanized steel
(c) Stainless steel
(d) High speed steel
Answer:

Option (b)

23.
ACSR is used in place of copper in overhead line because of
(a) High current carrying capacity
(b) Lighter in weight
(c) Economy
(d) Higher tensile strength
Answer:

Option (c)

24.
ACSR conductors has
(a) All conductors made of aluminum
(b) Outer conductor made of aluminum
(c) Inner conductor made of aluminum
(d) No conductor made of aluminum
Answer:

Option (b)

25.
ACSR conductors having 70 aluminum and 6 steel conductor is
(a) 70/6
(b) 6/70
(c) 70/76
(d) 6/76
Answer:

Option (a)

26.
Expanded ACSR conductors are composed of
(a) Larger diameter individual stands for a given cross section of the aluminum
(b) Larger diameter of the central steel stranded for a given overall diameter of the conductor
(c) Larger diameter of the aluminum strands only for a given overall diameter of conductor
(d) A filter between the inner steel and outer aluminum strands to increase the overall diameter of the conductor
Answer:

Option (b)

27.
The function of steel wire in ACSR conductor is to
(a) Compensate skin effect
(b) Take care of strength
(c) Provide mechanical strength
(d) Reduce inductance
Answer:

Option (c)

28.
In ACSR conductor, insulation between aluminum and steel conductor is
(a) Betumin
(b) Varnish
(c) Insulin
(d) No insulation required
Answer:

Option (d)

29.
Galvanized steel wire is usually used as
(a) Stay wire
(b) Earth wire
(c) Structure components
(d) All of above
Answer:

Option (d)

30.
Material used for ground wire is
(a) Aluminum
(b) Galvanized steel
(c) Cast iron
(d) Stainless steel
Answer:

Option (b)

Showing 21 to 30 out of 108 Questions
1 2 3 4 5 6