The ratio of voltage and current in a closed circuit remains
A permanent magnet retains its magnetism
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Moving coil instruments are –
The dynamometer type wattmeter is used on –
Megger can be used of testing –
The most essential instrument required by a T.V. technician is –
The e.m.f. generated in a d.c. Generator is –
Rating of transformer is given in –
In a larger size of alternator, flux is kept –
A synchronous motor can be started by
The efficiency of lamp is measured in –
In metallic arc welding, the supply voltage may be –
Photo voltaic solar energy conversion system makes use of
A generating station which has a high investment cost and low operating cost is usually operated as a
Major share of power generated in India is through
Out of the following plants categories
(i) Nuclear (ii) Run-off-river
(iii) Pump Storage (iv) Diesel
The base load power plants are
Which of the following motors is used in ceiling fan?
In the optimum generator scheduling different power plants, the minimum fuel cost is obtained when
The area the load curve represents
The power system experiences peak demand from
Demand factor is defined as the ratio of
A power plant has a maximum demand of 15 MW. The load factor is 50% and the plant factoris 40%. The operating reserve is
The economics of power plant is greatly influenced by :
1. Load factor 2. utilization factor
3. unit capacity 4. type of load
Domestic consumers are usually charged
Distributors designed from the point of view of
What is the main reason for using the high voltage for the long distance power transmission?