PSOC 24-25

The area under the load curve represents ____________

• maximum demand
  

• load factor
  

• the average load on power system
  

• number of units generated

Load duration curve indicates _______

• a) the variation of load during different hours of the day
  

• b) total number of units generated for the given demand
  

• c) total energy consumed by the load
  

• d) the number of hours for which the particular load lasts during a day

During which time the demand of electrical energy is maximum?

• a) 2 A.M. to 5 A.M.
  

• b) 5 A.M. to 12 P.M.
  

• c) 12 P.M. to 7 P.M.
  

• d) 7 P.M. to 9 P.M

What is Demand factor?

• a) Ratio of connected load to maximum demand
  

• b) Ratio of average load to connected load
  

• c) Ratio of maximum demand to the connected load
  

• d) Ratio of kilowatt hour consumed to 24 hours

Which of the following represents the annual average load?

• a) (KWh supplied in a day)/24
  

• b) {(KWh supplied in a day)/ 24 } × 365
  

• c) {(KWh supplied in a month)/(30 x 24)
  

• d) (KWh supplied in a year) / (24 × 365)

The load factor is __________

• a) always less than unity
  

• b) less than or greater than 1
  

• c) always greater than 1
  

• d) less than zero

In practice what is the value of diversity factor?

• a) Less than Unity
  

• b) Geater than Unity
  

• c) Equal to or greater than Unity
  

• d) Less than zero

What is the objective of the economic dispatch problem?

• The objective of economic dispatch problem is to maintain the operating cost of active power generation.

• The objective of economic dispatch problem is to maximize the operating cost of active power generation.

• 
  The objective of economic dispatch problem is to reduce the operating cost of active power generation.

• The objective of economic dispatch problem is to minimize the operating cost of active power generation.

Economic distribution of loads between plants also know as _____________.

• 
  unit commitment

• Coordination equation

• economic dispatch

The rate of change of fuel cost with active power generation is called______________________.

• incremental rate

• incremental fuel-cost

• 
  participation rate

• base point