COMPREHENSIVE EXAM SCRIPT FULL
QUESTIONS AND CORRECT ANSWERS
◉Parts of coil Tattoo machine. Answer: - 2 coils
-yoke
-frame
-tube
-tube clamp
-grip
-needle
-tip
-needle bar
-armature bar
-front spring
-contact screw
-o-ring
- rear spring
- rear spring mounting screw
, ◉Front Spring. Answer: - fixed to the same point of the rear spring,
not attached to the frame
-not attached so the bar can move
- bend at an upward angle so it can reach the contact screw
- to adjust the angle of the front spring, rubber grommets or o-rings
can be used because of their different widths
◉Armature bar. Answer: - made of magnetically responsive metal
- responsible for moving the needle
- fixed on the machine by a rear spring that allows the bar to move
up and down
- at the front of the bar is the front spring
-the electromagnetic force of the coils pulls the armature bar down,
opening the circuit when contact is made
- the electromagnetic field then dissipates, causing the armature bar
to leap upwards causing the front spring to make contact with the
contact screw.
◉Contact screw. Answer: - binding posts act as electrical
connections
- the front binding post is connected to the negative lead and also
holds the contact screw.