QUESTIONS AND ANSWERS LATEST 2025-2026
EXAM UPDATE |GRADE A+ GUARANTEE
Switch - Answer-is a device for making and breaking the connection in
an electric circuit.
Isolator - Answer-is a mechanical switch that isolates a part of a circuit
from the system as when required. Electrical isolators separate a part of
the system from rest for safe maintenance works.
SPST - Answer-is a single pole, single throw switch.
SPDT - Answer-is a single pole, double throw switch.
DPST - Answer-is a double pole, single throw switch.
DPDT - Answer-is a double pole, double throw switch.
single cell battery symbol - Answer-
battery symbol - Answer-
, connecting wire symbol - Answer-
Resistor symbol - Answer-
switch (open) symbol - Answer-
switch (closed) symbol - Answer-
earth electrode symbol - Answer-symbol is down arrow with lines
Earth electrode - Answer-is a metal plate or other conducting elements
of electricity partially buried in the earth to constitute and provide a
reliable conductive path of the fault current to the ground.
cell - Answer-is a device containing electrodes immersed in an
electrolyte, used for generating current or for electrolysis.
Battery - Answer-is a container consisting of one or more cells, in
which chemical energy is converted into electricity and used as a source
of power.
source - Answer-is a part of a field effect transistor from which carriers
flow into the inter electrode channel.