[ILM] 101E Tools & Instruments

Question 1

service wrench is

Answer 1

valve wrench

Question 2

fin combs are used

Answer 2

to straighten fins in evaporators, condensers and cooling coils

always wear gloves while using a fin comb to prevent cuts

Question 3

gauge set

Answer 3

accurately diagnose service refrigeration and air conditioning systems

Question 4

see p5 for visual

Question 5

low side gauge & service hose are colour coded

Answer 5

blue

Question 6

high side gauge & service hose are colour coded

Answer 6

red

Question 7

centre hose is colour coded

Answer 7

yellow

Question 8

Phillips screwdriver

Answer 8

]]
#0 - 0 to 1
#1 - 2 to 4
#2 - 5 to 9
#3 - 10 to 16
#4 - 18 to 24

Question 9

Robertson screwdriver

Answer 9

]]
#0 - 3 and 4 (yellow)
#1 - 5 to 7 (green)
#2 - 8 to 10 (red)
#3 - 12 and larger (black)

Question 10

hex wrenches are

Answer 10

Allen keys

Question 11

always mount the blade so that cutting is on the push stroke

T or F

Answer 11

True

Question 12

less teeth

more teeth

Answer 12

wood

metal, copper

Question 13

24 teeth per inch

32 teeth per inch

Answer 13

thicker sheet metal

thinner sheet metal

Question 14

store hacksaws with the blade tension loosened

T or F

Answer 14

True

Question 15

metal snips (tin snips)

Answer 15

left direction
right direction

Question 16

hammer peen

Answer 16

망치 둥그런 부분

Question 17

micrometer

Answer 17

anvil
thimble
ratchet

Question 18

alcohol is much safer than mercury

T or F

Answer 18

True (-40C ~ 78C)

Question 19

mercury-filled thermometers

Answer 19

-38.9C ~ 356.7C

Question 20

the bimetallic thermometer has 2 dissimilar metals bonded together

T or F

Answer 20

True

Question 21

the difference between the dry and wet bulb temperature is called

Answer 21

web bulb declination

Question 22

sling psychrometers come with a chart that uses wet bulb declination to determine relative humidity

T or F

Answer 22

True

Question 23

1 psi ==

Answer 23

25,400 microns

Question 24

vacuum gauges are often called

Answer 24

micron gauges

Question 25

hygrometer == sling psychrometer determines

Answer 25

relative humidity of both room and outside air