1) Most economic load on an overhead line is a) Greater than natural load Less than natural load b) c) Equal to the natural load d) None of the above is necessary 2) The cost of generation is theoretically minimum if: a) b) c) Both system and operational constraints need to be considered. The constraints are not considered. 6) The operational constraints are considered. The system constraints are considered. None of these There is no effect of constraints on cost d) e) f) 3) If the penalty factor of a plant is unity, its incremental transmission loss is a) 1 b) 2 c) -1 d) None of the above 4) In order to have lower cost of electrical energy generation a) The load factor and diversity factors should be high. b) The load factor should be low but diversity factor low. c) The load factor and diversity factor should be low. d) The load factor should be low but diversity factor should be high. 5) Wind energy a) Is clean, almost free and domestically produced b) Develops power proportional to the power of the wind c) Has higher cost comparatively d) All of the above Which of the following generation station has minimum running cost? a) Oil Power Station b) Thermal Power Station c) Hydro-electr power station d) Nuclear Power Station 7) For economic measure the generators at the power plant operates at a) Equal incremental cost b) Equal loads c) Equal power rating d) Equal loads and power involved.