Answer to Question 1A drive train is the collective components that transfer power from a source to a load.
Answer to Question 2Electric motors are often the chosen type of power because (1) they are adaptablemotors can be used
in almost any location including underwater; (2) they are automaticmotors are easily controlled by
automatic devices; (3) they are compacta small unit develops a relatively large amount of power; (4)
they are economicala small motor operating at less than .25 per hour can do the work of several
humans; (5) they are dependableelectric motors selected specifically for the job seldom give trouble.