101e Flashcards
Service wrench is used for
Opening and closing compressor valves
Fin combs are used to
Straighten evaporator and condenser coils
Manifold and gauge set
Accurately diagnose and service refrigeration and air conditioning systems
Low side gauge is
Blue
High side gauge is
Red
Centre hose is
Yellow
Types of screwdrivers
Allen key
Torx
Robertson (square)
Phillips(cross)
Cabinet(straight)
How many Phillips screwdriver sizes
5 (0,1,2,3,4)
How many Robertson screwdriver sizes
4
(0 yellow, 1 green, 2 red, 3 black)
Two types of wrenches
Closed and open
Combination wrench is both
Open and closed
What wrench is used on black iron
Pipe wrench
On a saw if the blades are close together it is used for
Metal
On saw if blades are further apart it’s used for
Wood
4 types of teeth for saw
14 teeth per inch
18 teeth per inch
24 teeth per inch
32 teeth per inch
Do you store hacksaws with the blade loose
Yea
Do you store a hacksaw with the blade a little loose
Yes to prevent frame distortion
Power tools must be ungrounded (yes or no)
Yes if not double insulated
Alcohol ambient temperature reading
-40F to 172°F
Mercury ambient thermometer range
-38.02°F to 674.04°F
A bimetallic thermometer has
Two dissimilar metals
The difference between the dry and wet bulb temperatures is called
Wet bulb declination
One pound per square inch is equal to how many microns
25,400
Vacuum gauges are often called
Micron gauges
