1. By which of the following systems electric power may be transmitted ?
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2 ........... are the conductors, which connect the consumer's terminals to the distribution
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3. The underground system cannot be operated above
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4. Overhead system can be designed for operation upto
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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
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The wooden poles well impregnated with creosite oil or any preservative compound have life
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Which of the following materials is not used for transmission and distribution of electrical power ?
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Galvanised steel wire is generally used as
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The usual spans with R.C.C. poles are
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The corona is considerably affected by which of the following ?
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Which of the following are the constants of the transmission lines ?
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310 km line is considered as
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The phenomenon qf rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the
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The square root of the ratio of line impedance and shunt admittance is called the
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Which of the following is the demerit of a 'constant voltage transmission system' ?
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Low voltage cables are meant for use up to
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The operating voltage of high voltage cables is upto
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The operating voltage of supertension cables is upto
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The operating voltage of extra high tension cables is upto
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Which of the following methods is used for laying of underground cables ?
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Transmission and Distribution MCQ 1
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