RAC 40 QUIZ 5 QUESTIONS AND CORRECT ANSWERS ALREADY PASSED
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Course
RAC 40
Institution
RAC 40
RAC 40 QUIZ 5 QUESTIONS AND CORRECT ANSWERS ALREADY PASSED
A wiring and crimping tool is used to:
A. Staple low-voltage wire
B. Crimp tubing
C. Cut and strip wire
D. Fasten insulation to duct - Answer- C. Cut and strip wire
A socket set is an integral part of a technician's toolbox becaus...
RAC 40 QUIZ 5 QUESTIONS AND
CORRECT ANSWERS ALREADY
PASSED
A wiring and crimping tool is used to:
A. Staple low-voltage wire
B. Crimp tubing
C. Cut and strip wire
D. Fasten insulation to duct - Answer- C. Cut and strip wire
A socket set is an integral part of a technician's toolbox because.
A. The ratchet handle can loosen and tighten a nut or hex head bolt with minimal
movement
B. there are multiple sockets that can be interchanged easily to accommodate different
size nuts and bolts
C. the extension allows easier access to nuts and bolts in tight locations
D. All of the above - Answer- D. All of the above
A sling psycrometer __________
A. Measures the dry bulb and wet bulb temperatures of air
B. measures the air velocity through a duct.
C. uses on micro processor to provide information for proper air balance
D. measures the quantity of air in CFM flowing through a duct - Answer- A. Measures
the dry bulb and wet bulb temperatures of air
Which of the following tools is different from the rest with respect to shape of the nut or
screw that it turns?
A. Adjustable wrench
B. Combination wrench
C. Hex key
D. Open end wrench - Answer- C. Hex key
Tubing cutters are used to.
A. Cut copper tubing
B. Cut sheet metal duct
C. Cut iron pipe used for natural gas or liquefied petroleum gas
D.Cut insulation for tubing - Answer- A. Cut copper tubing
A gauge and manifold assembly used in refrigeration work may include.
A. A four way valve design using a shut off valve for each hose
, B. compound gauge, standard gauge, manifold, valves and hoses
C. either two or four valves
D. all of the above - Answer- D. All of the above
The halide leak detector __________
A. detects air leaks in duct systems
B. detects nitrogen leaks in the refrigeration system
C. is used to detect water leaks in a chilled water system
D. detects refrigerant leaks in a refrigeration system - Answer- D. detects refrigerant
leaks in a refrigeration system
Air conditioning and refrigeration reversible ratchet wrenches are used to
A. Open and close refrigerant service valves
B. Tighten hex head sheet metal screws
C. tighten nuts that cannot be reached with other wrenches
D. Tighten flare nuts - Answer- A. Open and close refrigerant service valves
TRUE OR FLASE
The odd shape of the torx type screw driver is the square shaft used to tighten or loosen
set screw. - Answer- False
Variable speed reversible electric drills can be used to drill holes as well as tighten and
loosen screws. - Answer- True
A programmable charging scale measures the volume of refrigerant flow into a
refrigeration system. - Answer- False
An instrument called a clamp-on ammeter is so called because the tongs can be
clamped around a single wire. - Answer- True
A clamp-on ammeter is designed to measure only alternating current. - Answer- True
Name at least 6 types of fastener types and driver tips. - Answer- Philips, Torx, Cabinet,
Hex head, Reed and prince,keystone
Name a tool used to cut sheet metal duct - Answer- Aviation shears
3 common tools used to line up holes - Answer- Pin rivet tool/ Drill bit/ Self tapping
screw
Name a tool used to close off copper tubing before it is sealed by solder. - Answer-
Tubing pinch off tool
This tool has a copper disc and air for combustion is drawn through an attached hose
used with propane - Answer- Halide torch
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