cameroon gce intermediate level 2024 photovalvic systems 1
cameroon gce intermediate level 2024 photovalvic systems 1
Energy derived from natural organic materials ’ 91
is called
A biomass
B geothermal
C solar
D hydro,
Light is made up of packets of enei
A electrons
B neutrons
C photons
D protons
10. called
Which of the following energy has the
greatest potential among all the sources of
renewable energy?
A Wind energy
B Solar energy
C Thermal energy
D Hydro–electrical energy
2.
In the production of solar cells the typeof
materials used are
A insulators
B conductors
C semiconductors
D galvanized materials
1 1.
1
Solar radiation received at any point of the
earth is called
A insolation
B radiation
C infrared rays
D irradiant
J.
t
–
The output voltage of a PV cell at Standard
Test Conditions STC is
A 0.7V
B 0.6V
C 0.26V
D 0.3V
12.
4. Solar radiation flux is usually measured with
the help of
A both direct and diffused radiations.
B direct radiations only
C diffuse radiations only.
D solar insolation. Improving the efficiency of a PV cell can be
done by
A adjusting the light facing angle all day
B placing coloured acetates on the cell
C heating the cell
D changing its direction to north
13.
5. The angle made by the plane surface with the
horizontal is known as
A latitude
B slope
C surface azimuth angle
D declination The most widely used semiconductor material
for solar panels production is
A silicon
B carbon
C selenium
D germanium
14.
6. The hour angle is equivalent to
A 10° per hour
B 15° per hour
C 20° per hour
D 25° per hour
1– The basic unit of a photovoltaic system is
A PV cell
B PV panel
C PV array
D The sun
The sun irradiation is approximately
1000W/m2 at
A 12 noon
B 10 am
C 2 pm
D 3 pm
73
3 A hot spot in an array is caused by
A Damaged panel
B Shaded or a dead cell in a panel
C High temperature
D Poor weather
It is a measure of how much sunlight intensity
is falling on a flat surface
A Solar insolation
B Solar irradiance
C Solar location
D Elevation
