Q.1
________ are the conductors, which connect the consumer's terminals to the distribution.
Q.2
The square root of the ratio of line impedance and shunt admittance is called the
Q.3
The operating voltage of high voltage cables is up to
Q.4
If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the corresponding size of conductor will be most economical. This statement is known as
Q.5
On which of the following factors skin effect depends?
Q.6
Which of the following characteristics should the line supports for transmission lines possess?
Q.7
The wooden poles well impregnated with creosote oil or any preservative compound has life
Q.8
The power transmitted will be maximum when
Q.9
The presence of ozone due to corona is harmful because it
Q.10
The following system is not generally used
Q.11
Besides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system?
Q.12
Which of the following is the source of heat generation in the cables?
Q.13
Which of the following faults is most likely to occur in cables?
Q.14
A feeder, in a transmission system, feeds power to
Q.15
Transmission line insulators are made of
Q.16
Skin effect is proportional to
Q.17
Owing to skin effect
Q.18
Which of the following is not a constituent for making porcelain insulators?
Q.19
Which of the following materials is not used for transmission and distribution of electrical power?
Q.20
For transmission of power over a distance of 200 km, the transmission voltage should be
Q.21
The loads on distributors systems are generally
Q.22
A conductor, due to sag between two supports, takes the form of
Q.23
The cause of damage to the lead sheath of a cable is
Q.24
The spacing between phase conductors of a 220 kV line is approximately equal to
Q.25
The skin effect of a conductor will reduce as the
Q.26
In transmission lines the cross-arms are made of
Q.27
The underground system cannot be operated above
Q.28
For transmission of power over a distance of 500 km, the transmission voltage should be in the range
Q.29
The steel used in steel cored conductors is usually
Q.30
In a D.C. 3-wire distribution system, balancer fields are cross-connected in order to
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