Solar Energy
Questions and Answers
1). The Zenith Angle complement is ________
Surface
Azimuth
AngleSlope
Solar Altitude Angle
Solar Azimuth Angle
2). Which Meter is used to measure
the Beam Radiations ________
Pyrheliomete
rSunshine Recorde
rAnemometer
All of the above
3). How many types of solar cells?
One
Two
Three
Four
4). In which collector the efficiency
is maximum ________
Flat
Plate
Line Focusing
Evacuated Tube
Paraboloid Dish
5). The solar cell efficiency is
about ________
25%
15%
48%
63%
6). The source of energy used for
satellites is __________
Solar Cells
Edison Cells
Fuel Cells
Cryogenic Cells
7). The Pyranometer measures
_________
Direct
Radiation
Diffusion Radiation
Both a and b
None of the above
8). The single solar cell voltage is
about _______
0.2
V
0.5 V
1.0 V
2.0 V
9). The solar heater function is to
convert the solar energy in to ________
Radiation
Electrical Energy
Thermal Energy
None of the above
10). The solar heater life span is
around _________
4-5
years
2-6 years
1-2 years
6-7 years
11). The radiation of solar includes
____________
Ultraviolet
light and Visible light
Radio waves and Infrared waves
X rays and Gamma rays
All of the above
12). Which cell is used to converts
solar energy directly into electrical energy ________
Dry
cell
Photoelectric cell
Battery
None of the above
13). Which of the following is the
most dangerous type of radiation ________
Alpha radiation
Beta radiation
Gamma radiation
None of the above
14). The energy which is stored as
latent heat is called as _______ energy
Mechanical
energy
Electrical energy
Thermal energy
None of the above
15). The solar energy directly used
for ______
Drying
Water heating
Distillation
All of the above
16). The nuclear radiation unit is
______
Pascal
Rankine
Reaumur
Roentgen
17). The standard form of HHW is
__________
High level waste
Low level waste
High and low level waste
None of the above
18). _________ radiation is called as
a diffuse radiation
Scattered solar radiation
Beam radiation
Infrared radiation
None of the above
19). Which type of radiation reaches
the surface without absorption or without scattering?
Scattered
solar radiation
Infrared radiation
Beam radiation
None of the above
20). From the sun the solar energy is
radiated in the form of ___________ waves
Electromagnetic waves
Infrared waves
Transverse waves
None of the above
21). The less insolation occurs when
the sun is ________
At
night
Low in the sky
High in the sky
None of the above
22). In solar cells _________
material is used
Copper
Silver
Silicon
None of the above
23). The range of solar cell
efficiency is
5-10%
10-15%
15-20%
None of the above
24). In aircrafts _____________
batteries are used
Alkaline
battery
Aluminium-ion battery
Nickel-iron battery
None of the above
25). The sun emits ______________
radiations
Infrared
Visible
Small amount of ultraviolet
All of the above
26). Visible radiations gives
______________ energy
Light energy
Heat energy
Both a and b
None of the above
27). Infrared radiations gives
______________ energy
Light
energy
Heat energy
Both a and b
None of the above
28). The Infrared radiations, visible
radiations and small amount of ultraviolet radiations are collectively known as
______________ energy
Light
energy
Heat energy
Solar energy
None of the above
29). In how many ways we can harness
solar energy?
One-way
Two ways
Three ways
Four ways
30). Plants convert solar energy into
____________ energy
Chemical energy
Light energy
Heat energy
None of the above
31). The solar constant also called
as ____________
Solar intensity
Solar irradiance
Both a and b
None of the above
32). The formula of solar constant is
________
S=
(R/r).σT2
S = (R/r)2. σT4
S = (R/r2).ΣT2
None of the above
33). The solar cell has __________
One
generation
Two generations
Three generations
Four generations
34). What is the S.I unit of the
solar constant?
S.I
unit= W2/m2
S.I unit= Wm2
S.I unit= W/m2
None of the above
35). What is the solar constant
value?
S
= 1.4*103 W/m2
S = 1.4*102 W/m2
S = 1.4*104 W/m2
None of the above
36). The formula of the surface
temperature of the sun is ________
T=
(R/r)2 (s/σ)
T4= (R/r)2 (s/σ)
T2= (R/r)2 (s/σ)
None of the above
37). What are the non-renewable
energy sources of energy?
Energy
from wind, sun
Energy from flowing water, ocean waves
Fossil fuels such as coal, petroleum
Both a and b
38). Solar energy can leads to
generate the electricity through ______
Heat
engines
Photovoltaics
Heat engines and Photovoltaics
None of the above
39). The solar energy is essentially
useful in _________ contexts
Solar
thermal
Solar photovoltaics
Solar thermal and Solar photovoltaics
None of the above
40). The high temperature in the
concentrating solar technologies divided into how many parts?
One
Two
Three
Four
41). Choose the odd one out
Coal
Petroleum
Oil
Biomass
42). What are the drawbacks of the
solar cooker?
Doesn’t
work at night
Solar cooker takes more time to cook the
food
Both a and b
None of the above
43). How many layers do solar cells
consist of?
One
layer
Two layers
Three layers
Four layers
44). What are the advantages of the
solar cells?
Maintenance
is very low
No pollution
Maintenance is very high
Both a and b
45). What are the drawbacks of using
solar cells?
Very
expensive
Efficiency is low
Wire which is used for connections is
made up of silver material
All of the above
46). What is the importance of solar
energy?
Environmental
friendly
Saves your money
Low Maintenance and diverse applications
All of the above
47). What are the different methods
of solar energy utilizations?
Direct
method
Indirect method
Both a and b
None of the above
48). The direct method of solar
energy utilization can be classified into ______?
Solar
thermal
Solar photovoltaic
Solar thermal and solar photovoltaic
None of the above
49). __________ comes under the
indirect method of solar energy utilization
Water
power, wind, wave energy
Marine currents,
OTEC
Biomass
All of the above
50). The efficiency achieved from
solar thermal energy is almost __________
20-45%
10-40%
15-30%
None of the above
51). The medium temperature in the
concentrating solar technologies divided into how many parts?
One
Two
Three
Four
52). The thin bottom layer of the
semiconductor in the solar cell is also called as _______
P – type
N – type
PNP – type
All of the above
53). The concentrating solar
technologies divided into how many parts?
One
Two
Three
Four
54). The low temperature in the
concentrating solar technologies divided into how many parts?
One
Two
Three
Four
55). The efficiency achieved from
photovoltaic is almost __________
20-45%
20-40%
19-24%
None of the above
56). The solar photovoltaics
efficiency varies between ___________
20-40%
9-70%
45-60%
8-40%
57). The total efficiency of the
solar thermal power plant is divided into ________
Receiver
efficiency
Generator efficiency
Both a and b
None of the above
58). What are the layers which
improve the receiver efficiency of solar thermal energy?
Absorber
layer coated tube
Anti-reflective layer coated tube
Both a and b
None of the above
59). The coating materials which are
used in solar absorber should possess the _________ properties
High
absorptivity, low emissivity
Strong adhesion, high durability
High thermal conductivity, corrosion,
and wear resistance
All of the above
60). What is the source of solar
energy?
Nuclear fusion
Nuclear power plant
Coal
None of the above
61). How many parts does solar energy
have?
One
Two
Three
Four
62). The semiconductor is the part of
the solar cell that has ___________
Top
layer
Bottom layer
Middle layer
All of the above
63). The solar radiation range in the
visible rays is about _______
40-41%
33-35%
42-43%
None of the above
64). The solar radiation range in
infrared is about _______
52-55%
33-35%
40-43%
None of the above
65). The solar radiation range in
ultraviolet is about _______
4-5%
3-5%
0-3%
None of the above
66). How many types of solar cells
are there based on the crystal structure?
One
Two
Three
Four
67). What are the parts of solar
energy?
Visible
Infrared
Ultraviolet
All of the above
68). What are the characteristics of
the solar cells?
Open-circuit
voltage and short circuit current
Fill factor
Power conversion efficiency
All of the above
69). What is the most commonly used
renewable energy?
Solar energy
Tidal energy
Hydro energy
None of the above
70). What is the basic component of
the PV system (Photovoltaic system)?
Battery
Charge collector
Solar cell
All of the above
71). How much voltage does a single
solar cell produce?
1v
0.5v
0.01v
None of the above
72). The efficiency of the poly
crystalline silicon solar cell is about __________
14-17%
12-17%
13-15%
None of the above
73). The semiconductor is the part of
the solar cell that has ___________
One
layer
Two layers
Three layers
None of the above
74). The types of solar cells based
on the crystal structure are _________
Single
crystal
Polycrystalline
Amorphous
All of the above
75). The top layer of the
semiconductor in the solar cell is also called as _______
P
– type
N – type
PNP – type
All of the above
76). The top layer of the
semiconductor in the solar cell consists of _______
Silicon
Phosporous
Silicon and phosphorous
All of the above
77). The thin bottom layer of the
semiconductor in the solar cell consists of _______
SiliconBoronSilicon and boronAll of the above
78). The solar cookers utilizes the
___________ energy to cook food
Infrared rays
Ultraviolet rays
Gamma rays
None of the above
79). A combination of solar panels
connected together is known as ______
Solar
cells
Solar array
Array
None of the above
80). What are the renewable energy
sources of energy?
Energy
from wind, sun
Energy from flowing water, ocean waves
Fossil fuels such as coal, petroleum
Both a and b
81). How many components does solar
energy have?
One
Two
Three
Four
82). What are the renewable sources
of energy?
Solar
energy, wind energy, hydroelectric power
Geothermal, ocean
Hydrogen, biomass
All of the above
83). Choose an odd one out
Wind
energy
Fossil fuels
Hydrogen
Biomass
84). Which materials are required to
make the solar cooker?
Aluminum
sheet, wooden box, Reflector
Glass slab, Black paint
Both a and b
None of the above
85). The formula of energy emitted or
energy radiated (p) by the sun is __________
p=4πR2 σT4
p=4πR2 σT2
p=4πR σT4
None of the above
86). The first generation of solar
cell consists of __________
Large
area
High quality
Single junction devices
All of the above
87). The efficiency of the first
generation of solar cell is about _______
15-20%
16-20%
10-20%
None of the above
88). The solar constant value is
________
1327
W/m2
1366 W/m2
1357 W/m2
1377 W/m2
89). The efficiency of
monocrystalline silicon solar cell is about __________
14-17%
15-19%
16-18%
None of the above
90). In polycrystalline silicon solar
cell which material is used as a raw material?
Silver
Copper
Liquid silicon
None of the above
91). The deficiency of
polycrystalline silicon solar cell is ________
Less than monocrystalline silicon solar cell
Higher than monocrystalline silicon
solar cell
Equal to monocrystalline Si solar cell
None of the above
92). What are the materials required
for the construction of solar cells?
P-type
material
N-type material
Both a and b
None of the above
93). The efficiency of amorphous
silicon solar cell is about __________
5-7%
15-19%
16-18%
None of the above
94). Who observed the materials which
turn light into energy?
August
Mouchout
Edmund Becquerel
Miyasaka
None of the above
95). Who has seen the direct
conversion of solar radiation into mechanical power?
August Mouchout
Edmund Becquerel
Miyasaka
None of the above
96). Who developed perovskite
materials into the solar cells?
August
Mouchout
Edmund Becquerel
Miyasaka
None of the above
97). The solar energy divided in to
_________
Active
Passive
Both a and b
None of the above
98). The photovoltaics divided in to
_________
Crystalline
Thin films
Both a and b
None of the above
99). The main components of the solar
thermal power systems are ___________
Reflectors
Receiver
Both a and b
None of the above
100). Which meter is used to measure
the solar radiation flux ________
Pyranometer
Sunshine Recorder
Anemometer
All of the above
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