Transmission and Distribution Objective Type questions - Set 03 - ObjectiveBooks

Transmission and Distribution Objective Type questions - Set 03

Practice Test: Question Set - 03

1. The material commonly used for insulation in high voltage cables is
    (A) Lead
    (B) Paper
    (C) Rubber
    (D) None of the above

2. Transmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is
    (A) 25 percent
    (B) 50 percent
    (C) 75 percent
    (D) 100 percent

3. Which of the following materials is used for overhead transmission lines?
    (A) Steel cored aluminium
    (B) Galvanised steel
    (C) Cadmium copper
    (D) Any of the above

4. In AC.S.R. Conductors, the insulation between aluminium and steel conductors is
    (A) Insulin
    (B) Bitumen
    (C) Varnish
    (D) No insulation is required

5. The voltage drop, for constant voltage transmission is compensated by installing
    (A) Inductors
    (B) Capacitors
    (C) Synchronous motors
    (D) All of above

6. In the analysis of which of the following lines shunt capacitance is neglected?
    (A) Short transmission lines
    (B) Medium transmission lines
    (C) Long transmission lines
    (D) Medium as well as long transmission lines

7. The following system is not generally used
    (A) 1-phase 3-wire
    (B) 1-phase 4-wire
    (C) 3-phase 3-wire
    (D) 3-phase 4-wire

8. ________ are the conductors, which connect the consumer's terminals to the distribution.
    (A) Distributors
    (B) Service mains
    (C) Feeders
    (D) None of the above

9. Which of the following is the demerit of a 'constant voltage transmission system’?
    (A) Increase of short-circuit current of the system
    (B) Availability of steady voltage at all loads at the line terminals
    (C) Possibility of better protection for the line due to possible use of higher terminal reactants
    (D) Improvement of power factor at times of moderate and heavy loads

10. Besides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system?
    (A) Circulating current method
    (B) Thevenin's theorem
    (C) Superposition of currents
    (D) All of the above

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