25) What is the purpose of the choke after the fluorescent tube is just lighted to its full brightness ?

For supplying a higher operating current

Smoothing the sinusoidal operating current

Limiting the current flowing through the fluorescent tube filaments

Heating the filaments continuously during operation

Answer is:

Limiting the current flowing through the fluorescent tube filaments

Loose connection in the choke

Loose core

Loose winding turns

Loose cover screw

Answer is:

Tube lamp will begin to flicker

Tube lamp will go out immediately

Tube will operate normally

Tube will begin to hum very much

Answer is:

low voltage and limit current

low voltage and increase current

high voltage and limit current

high voltage and increase current

Answer is:

low voltage and limit current

low voltage and increase current

surge voltage and limit current

surge voltage and increase current

Answer is: