Test: Power Systems - 2 - Electrical Engineering (EE) MCQ
25 Questions MCQ Test - Test: Power Systems - 2
As per IE rule, if the leakage current in an electrical installation exceeds a specified value, no supply should be given until the cause of the same is removed, this specified value is 1/5000 the part of ...............
Which material is having negative temperature coefficient ?
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As per BIS rule the resistance of earth electrode should be measured in ............... weather.
A choke is generally used in series with the tube in a fluorescent lamp circuit to
In a power house, illumination should be approximately ............
Power factor of an alternator driven by constant prime mover input can be changed by changing its
Where is the draft tube of a hydropower station that is an airtight pipe located ?
What is the nominal pH value of water that is to be maintained in a steam raising thermal power station ?
The maximum demand of a consumer is 2 kW and the corresponding daily energy consumption is 30 unit. What is the corresponding load factor ?
Buses for load flow studies are classified as (i)the load bus, (ii) the generator bus and (iii) the
slack bus The correct combination of the pair of quantities specified having their usual meaning for different buses is
The impedance value of generator is 0.2 pu on a base value of 11 kV, 50 MVA. The impedance value for a base value of 22 KV, 150 MVA is
If the fault current is 2 kA, the relay setting is 50% and the C.T. ratio is 400/5, then the plug setting multiplier of a relay will be
A power plant has a maximum demand of 15 MW. The load factor is 50% and the plant factor is 40%. The operating reserve is
The load curve of system is shown in the figure.
The load factor of the system is
Galloping in transmission line conductors arises generally due to
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW of remaining 12 hours. The plant capacity factor for this station is
Compared to Gauss-seidel method, Newton- Raphson method takes
The operation of a nuclear reactor is controlled by controlling multipliction factor (K) defined as
The power -level of the reactor can be increased by
Non-metallic conduits used in internal wiring are generally made of
The positive sequence current for a L-L fault of a 2 kV system is 1400 A, and corresponding current for a L-L-G fault is 2220 A. The zero sequence impedance of the system is
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