Q.1.
Which of the following furnace suffers from pinch effect?
Q.2.
How are different forms of energy related?
Q.3.
Which of the following causes the corrosion of terminals and clamps?
Q.4.
Which of the following methods of heating is not dependent on the frequency of supply?
Q.5.
Which of the following is an advantages of heating by electricity?
Q.6.
As an object falls its __________ energy decreases and its kinetic energy increases
Q.7.
What is an example of multiple energy transformations?
Q.8.
Whenever a moving object experiences friction, some of its kinetic energy is transformed into __________ energy.
Q.9.
_________ CANNOT be created or destroyed
Q.10.
A change from one form of energy to another
Q.11.
A pendulum has the most kinetic energy when?
Q.12.
Grounding transformer is used where neutral .........available
Q.13.
In equipment grounding, the enclosure is connected to ...........wire
Q.14.
In case of earth fault, the underground neutral system                    lead to arcing ground
Q.15.
In a substation the equipment used to limit short circuit current level is
Q.16.
Grounding transformer is used where neutral                  available
Q.17.
In electric welding, arc blow can be avoided by
Q.18.
A.C. welding machine cannot be used for welding
Q.19.
The major disadvantage of carbon arc welding is that
Q.20.
The free-running speed of a train does NOT depend on the