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Power Systems

Power Systems
Which of following materials can be used as coolant

  Any of above.
 Helium.
 Heavy water.
 CO2.

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Power Systems
The essential requirement(s) for power plants to be operated as peak load plants are

All of these
 Capability of quick starts.
 Low capital cost.
 Quick response to load variation.

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Power Systems
If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs.

 3.
 20.
  5.
 7.

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Power Systems
In which of the following configuration power transferability is higher?

 same in both configuration
 horizontal configuration
 triangular configuration
None of these

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Power Systems
If the penalty factor of a plant is unity, its incremental transmission loss is

 -1
None of these
 1
 0

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Power Systems
Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no

 both 1 and 2
 shunt admittance
 mutual coupling
None of these

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