An air preheater is an essential part of which of the following power plant?
A.Nuclear power plant
B.Steam power plant
C.Diesel engine power plant
D.Gas turbine power plant
E.Hydro-electric power plant
Category: Energy Conversion Mcqs
Long distance electric trains take power on
A.600 V dc
B.1500 V dc
C.25 kV single phase ac
D.25 kV two phase ac
E.25 kV three phase ac
Which of the following is considered to be superior quality coal for power plants?
A.Bituminous coal
B.Peat
C.Coke
D.Lignite
E.Pulverised coal
The fixed cost of a power plant depends on
A.Installed capacity
B.Demand factor
C.Diversity factor
D.Average demand
E.All of the above
Phase, advancers for power factor improvement are generally used for
A.Induction motors below 10 HP
B.Induction motors below 100 HP
C.Induction motors below 200 HP
D.Are lamps of high wattage
E.Transformers of 100 MVA and above
The standard wattage of 4 feet fluorescent tube is
A.10 W
B.40 W
C.100 W
D.250 W
E.500 W
A jet aircraft is powered by
A.Petrol engines
B.Diesel engines
C.Gas turbine
D.Batteries
E.Solar cells
By increasing sag in the suspended transmission line
A.Tension in the line decreases
B.Tension in the line increases
C.Current carrying capacity of conductor increases
D.Current carrying capacity of conductor decreases
E.None of the above
Power factor is expected to be highest in case of
A.Mercury vapour lamp
B.Carbon arc lamp
C.Tube lights
D.Sodium lamps
E.GLS lamp
The initial cost of an equipment is Rs. 20 lakhs and depreciated cost after ten years is Rs. 15 lakhs. The useful life of the equipment is
A.5 years
B.10 years
C.15 years
D.20 years
E.Cannot be determined on the basis of the information provided
