MGVCL Exam Paper (30-07-2021 Shift 2)
When different types of consumers are charged at different uniform per unit rates, it is called as ____

block rate tariff
two-part tariff
flat rate tariff
maximum demand tariff

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MGVCL Exam Paper (30-07-2021 Shift 2)
In the circuit of figure, the switch is closed to position-1 for a long time. At t = 0 the switch position is changed from postion-1 to postion-2. Find an expression for the current i(t).

i(t) = (E/R) sin√(LC) t A
i(t) = (E/R) cos√(LC) t A
i(t) = (E/R) sin[1/√(LC)]t A
i(t) = (E/R) cos[1/√(LC)]t A

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MGVCL Exam Paper (30-07-2021 Shift 2)
A power factor less than unity results in which of the following disadvantages?
(i) Large kVA rating of equipment
(ii)Poor voltage regulation
(iii) Greater conductor size

(i) and (iii) only
(ii) and (iii) only
(i) and (ii) only
(i), (ii) and (iii)

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MGVCL Exam Paper (30-07-2021 Shift 2)
Consider the following statements associated with Buchholz's relays.
Statement 1: Buchholz's relay is a current operated device.
Statement 2 : Buchholz's relay is placed between the transformer tank and the conservator.

Both Statement 1 and Statement 2 are TRUE
Statement 1 is FALSE and Statement 2 is TRUE
Both Statement 1 and Statement 2 are FALSE
Statement 1 is TRUE and Statement 2 is FALSE

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