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WorksheetsENERGY &POWER ENGG.
Total questions: 20
Worksheet time: 11mins
Energy can neither be created nor destroyed but still everybody discuss about the energy crisis because
Energy transform into different form continuously.
Usable form of energy is dissipated to the surroundings in less usable forms.
Energy is consumed and cannot be used again
All of these
An ideal source of energy should have
higher calorific value
easy transportability
easy accessibility
All of these
Spent slurry (Bio-waste after obtaining biogas) is used as
fuel
manure
used again for generating biogas
food for livestock
A good fuel should possess
high ignition temperature
moderate ignition temperature
high calorific value
both high calorific value and moderate ignition temperature
Mirrors used for solar cooker are (a)
One major problem in harnessing nuclear energy is
disposing off spent fuel easily.
splitting the nuclei.
sustaining the reaction.
converting nuclear energy into electrical energy.
A device in which electricity is produced by the process of controlled nuclear fission reaction is called
nuclear chain reaction
hydel power plant
nuclear reactor
thermal power plant
Ocean thermal energy is produced due to
pressure difference at different levels in the ocean
temperature difference at different levels in the ocean.
energy stored by waves in the ocean.
tides rising out of the ocean.
Which of the following gases is the main constituent of natural gas?
Ethane
Propane
Methane
Butane
Which element is used in solar cells?
Carbon
Silicon
Phosphorous
Sulphur
Which of these should not be a properties of fuel cell electrodes
good electrical conductors
highly resistant to corrosive environment
should perform charge seperation
take part in chemical reactions
How many types of OTEC plants are there
1
2
3
4
Closed cycle systems use the fluid having ___________
High boiling points
Low boiling points
High viscosity
low viscosity
Tidal energy development needs
Huge capacity and long construction time.
Huge capacity and low construction ti
Huge capacity and low construction ti
Low capacity and low construction time.
The installed capacity of wind energy in India is about
8000 MW
1500 MW
6000 MW
4000 MW
Winds having following speed are suitable to operate wind turbines
5-25 M/S
10-35 M/S
20-45 M/S
30-55 M/S
The hydrocarbons cracked with steam in fuel cells do not give rise to __________
CO
CO2
H2
H2O
Which of these gases or liquids are not used as source of hydrogen in fuel cells?
C2H6
C2H2
C6H6
C2H5OH
What is the voltage output of hydrogen-oxygen fuel cell?(in V)
-1.23
-1.45
-1.01
-.93
Fuel cell performance is not limited by __________
First law of Thermodynamics
Second law of Thermodynamics
Second law of Thermodynamics
All three laws are applicable
