Practice Test: Question Set - 02
1. Most of the high voltage transmission lines in India are
- (A) Underground
- (B) Overhead
- (C) Either of the above
- (D) None of the above
2. Which of the following methods is used for laying of underground cables?
- (A) Direct laying
- (B) Draw-in-system
- (C) Solid system
- (D) All of the above
3. A uniformly loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is
- (A) One-fourth
- (B) One-third
- (C) One-half
- (D) Twice
4. Which of the following is not a constituent for making porcelain insulators?
- (A) Quartz
- (B) Kaolin
- (C) Felspar
- (D) Silica
5. In aluminium conductors, steel core is provided to
- (A) Compensate for skin effect
- (B) Neutralise proximity effect
- (C) Reduce line inductance
- (D) Increase the tensile strength
6. For transmission of power over a distance of 200 km, the transmission voltage should be
- (A) 132 kV
- (B) 66 kV
- (C) 33 kV
- (D) 11 kV
7. When the interconnector between two stations has large reactance
- (A) The transfer of power will take place with voltage
fluctuation and noise
- (B) The transfer of power will take place with least
loss
- (C) The stations will fall out of step because
of large angular displacement between the stations
- (D) None of the above
8. The skin effect of a conductor will reduce as the
- (A) Resistivity of conductor material increases
- (B) Permeability of conductor material increases
- (C) Diameter increases
- (D) Frequency increases
9. By which of the following systems electric power may be transmitted?
- (A) Overhead system
- (B) Underground system
- (C) Both (A) and (B)
- (D) None of the above
10. The square root of the ratio of line impedance and shunt admittance is called the
- (A) Surge impedance of the line
- (B) Conductance of the line
- (C) Regulation of the line
- (D) None of the above
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