ELECTRIC MAGNETISM – Air – DGCA Question Bank For Politics

#1. The area of force around a magnet is termed:

conductance.

stable

magnetic resistance.

magnetic field.

#2. When a magnet is unable to accept any further magnetism it is termed:

reluctance

saturation

active

reactance

#3. Permanent magnets are manufactured from:

steel

plastic

liquid

glass

#4. Magnetic lines of force flow externally from:

one main line station to another.

the master station.

the north to the south pole.

in a random direction.

#5. Which of the two poles has the greatest strength:

north seeking pole.

south seeking pole

both poles have the same strength.

the saturated pole.

#6. Electromagnetism is a product of:

voltage.

current.

resistance.

engine resistance.

#7. To increase electromagnetic force one would:

increase coil resistance.

reduce current flow.

lower EMF.

increase current flow.

#8. If you bring two magnets together:

like poles will attract.

unlike poles will attract.

over heating will occur.

their magnetic fields will adjust to avoid overcrowding.

#9. A soft iron core in an electromagnet:

increases flux density.

decreases flux density.

reduces arcing.

increases the lines of strength.

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