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Electrical Engineering
Electric Energy Generation Utilization And Conservation
Quiz 2
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Q.1
Which of the following furnace suffers from pinch effect?
resistance furnace
core type induction furnace
coreless induction furnace
vertical core type induction furnac
Q.2
How are different forms of energy related?
they can all be transformed into other forms of energy
none of them can be transformed into other forms of energy
they can be created
they can be destroyed
Q.3
Which of the following causes the corrosion of terminals and clamps?
spilled electrolyte
increase in temperature
decrease in pressure
due to high current
Q.4
Which of the following methods of heating is not dependent on the frequency of supply?
induction heating
dielectric heating
electric resistance heating
all of the above
Q.5
Which of the following is an advantages of heating by electricity?
quicker operation
higher efficiency
absence of flue gases
all of the above
Q.6
As an object falls its __________ energy decreases and its kinetic energy increases
potential
chemical
thermal
electric
Q.7
What is an example of multiple energy transformations?
Your body transforms chemical to thermal
Your body transforms chemical to mechanical
a flashlight converts chemical energy in batteries to electrical to electromagnetic energy in light
a phone converts electrical to electromagnetic
Q.8
Whenever a moving object experiences friction, some of its kinetic energy is transformed into __________ energy.
thermal
electrical
nuclear
mechanical
Q.9
_________ CANNOT be created or destroyed
energy
transformation
motion
pendulums
Q.10
A change from one form of energy to another
energy conservation
energy transformation
potential energy
kinetic energy
Q.11
A pendulum has the most kinetic energy when?
at the top of its swing
at the bottom of its swing
Q.12
Grounding transformer is used where neutral .........available
is
is not
either a or b
. none of the above
Q.13
In equipment grounding, the enclosure is connected to ...........wire
ground
neutral
phase
either a or b
Q.14
In case of earth fault, the underground neutral system lead to arcing ground
does
does not
any of above
none of above
Q.15
In a substation the equipment used to limit short circuit current level is
series reactor
coupling capacitor
lightening switch
isolator.
Q.16
Grounding transformer is used where neutral available
is
is not
any of above
none of above
Q.17
In electric welding, arc blow can be avoided by
using bare electrodes
welding away from earth ground connection
using welding machines
increasing arc length
Q.18
A.C. welding machine cannot be used for welding
mig
atomic hydrogen
resistance
submerged ar
Q.19
The major disadvantage of carbon arc welding is that
there is occurrence of blow holes
electrodes are consumed fast
separate filler rod is needed
bare electrodes are necessary.
Q.20
The free-running speed of a train does NOT depend on the
duration of stops
distance between stops
running time
acceleration.
0 h : 0 m : 1 s
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