Diesel Power Plant
What is supercharging?
a. Pumping
of air into the cylinder at the pressure greater than atmospheric pressure.
b. Pumping
of air out of the cylinder at the pressure greater than atmospheric pressure.
c. Pumping of air into the cylinder at the
pressure lower than atmospheric pressure.
d. Pumping of air out of the cylinder at the
pressure lower than atmospheric pressure.
Calculate the overall
efficiency of the diesel plant if the fuel consumption is 0.24 kg per kWh and
the calorific value of the fuel being 10000 kcal/kg.
a. 30.78 b. 35.83 c. 28.73 d. 36.86
The lubrication cost
in a diesel power plant is
a. High b. Low c. Moderate d.
Very low.
The identification of
a two stroke engine is given by
a. Cooling system. b. Lubrication system. c. Absence
of valve. d. All of these.
Maximum temperature
developed in a diesel engine is in the range of
a. 2000 -
2500 °C b. 500 –
1000 °C c. 1500 – 2000 °C d. 1000 – 1500 °C
High output diesel
engines are started by
a. Self starter. b.
Compressed air. c.
Battery. d. Cranking.
Heating value of
diesel is around?
a. 4000 kcal/kg b. 10000
kcal/kg c. 15000
kcal/kg d. 20000 kcal/kg
The temperature of the
cooling water leaving the diesel engine should not exceed.
a. 25 °C b. 40 °C c. 85 °C d. 70 °C
Hydroelectric Power Plant
1. Which of the following is the correct equation for the electrical
power generated by the hydroelectric power plant?
a) 75×0.736 wQHη Watt b) (7.5/0.736) × wQHη Watt
c) 0.845 ×wQHη Watt d) 9.81 ×wQHη
2. Which of the following is not a requirement for site
selection of hydroelectric power plant?
a) Availability of water b)
Large catchment area
c) Rocky land d) Sedimentation
3. The amount of electrical energy that can be generated
by a hydroelectric power plant depends upon ___________
a) Head of water b) Quantity of water
c) Specific weight of water d)
Efficiency of Alternator
4. Which of the following statement is true about
hydroelectric power plant?
a) Hydroelectric power plants are
multipurpose.
b) Due to non-uniform flow of water
frequency control in such plants is very difficult.
c) Hydroelectric power plant has high running cost
d) Water is used as fuel in hydroelectric power plant
5. Hydroelectric power plant is __________
a) Non-renewable source of energy b) Conventional source of energy
c) Non-conventional source of energy d)
Continuous source of energy
6. Which of the
following is not an advantage of hydroelectric power plant?
a) no fuel requirement b)
low running cost
c) continuous power source d) no standby losses
7. Hydroelectric power plant is mainly located in
____________
a) Flat areas b)
Deserts c) Hilly areas d) Deltas
8. Which statement about hydroelectric power plant is
wrong?
a) Efficiency of hydroelectric power plant does not reduce with age
b) Its construction coast is very high and takes a long time for erection.
c) It is very neat and clean plant because no smoke or ash is produced.
d) Meeting rapidly changing load demands
is not possible in hydroelectric power plant.
Composed By:
R.Satheesh, M.E., Asso.Prof.,
E-Mail: rsatheeshemail@gmail.com
