19. Q. Why is Deltabeston wire used in preference to cotton-covered wire?
A. So that it cannot be injured by short circuits, for if a short circuit occurs and afterwards is removed there is no danger done to the insulation on this make of wire.
20. Q. Where are the fields located?
A. One on each side of the dynamo.
21. Q. Why?
A. So that they cannot be injured by waste oil from the ball bearing, or by water or snow.
22. Q. How should ball bearing on dynamo end be lubricated?
A. By removing oil plug in frame just back of dynamo and introducing cylinder oil.
23. Q. Is it necessary to remove the top carbon holder from the lamp to remove reflector from case?
A. No.