Deck 5: Tools and Equipment

Question 1

Mercury bulb-controlled thermostats require that they are installed perfectly horizontal. The tool used to accomplish this is called a(n) ____________________.

Answer 1

level

Question 2

After brazing a joint in a very tight location, the technician would use a(n) ____________________ to determine if the joint is properly brazed.

Answer 2

inspection mirror

Question 3

Tube cutters are used to ____.

A) cut insulation for tubing
B) cut iron pipe used for natural gas or liquefied petroleum gas
C) cut copper tubing
D) cut sheet metal duct

Answer 3

C

Question 4

The odd shape of the Torx type screw driver is the square shaft used to tighten or loosen set screws.

Question 5

When required to drill holes on a roof that has no power supply, the best drill for the job would be a(n) ____________________.

Question 6

A clamp-on ammeter is designed to measure only alternating current.

Question 7

Variable speed reversible electric drills can be used to drill holes as well as tighten and loosen screws.

Question 8

A socket set is an integral part of a technician's tool box because ____.

A) the extension allows easier access to nuts/bolts in tight locations
B) the ratchet handle can loosen and tighten a nut or hex head bolt with minimal movement
C) there are multiple sockets that can be interchanged easily to accommodate many different size nuts and bolts
D) All of the above.

Question 9

The halide leak detector ____.

A) detects nitrogen leaks in the refrigeration system
B) is used to detect water leaks in a chilled water system
C) detects refrigerant leaks in a refrigeration system
D) detects air leaks in duct systems

Question 10

An instrument called a clamp-on ammeter is so called because the tongs can be clamped around a single wire.

Question 11

A wiring and crimping tool is used to ____.

A) crimp tubing
B) cut and strip wire
C) staple low voltage wire
D) fasten insulation to duct

Question 12

A programmable charging scale measures the volume of refrigerant flow into a refrigeration system.

Question 13

A sling psychrometer ____.

A) measures the dry-bulb and wet-bulb temperatures of air
B) measures the air velocity through a duct
C) uses a microprocessor to provide information for proper air balance
D) measures the quantity of air, in cfm, flowing through a duct

Question 14

Air conditioning and refrigeration reversible ratchet wrenches are used to ____.

A) tighten hex head sheet metal screws
B) tighten flare nuts
C) open and close refrigerant service valves
D) tighten nuts that cannot be reached with other wrenches

Question 15

Evacuating a system is accomplished with a(n) ____________________ and helps to remove air and non-condensable gases from a system.

Question 16

The tool used to create pipe threads on the outside of a pipe is called a(n) ____________________.

Question 17

Which of the following tools is different from the rest with respect to the shape of the nut or screw that it turns?

A) Open end wrench.
B) Combination wrench.
C) Hex key.
D) Adjustable wrench.

Question 18

Flare nut wrenches are used to ____.

A) tighten or loosen nuts on copper tubing
B) open or close refrigerant service valves
C) tighten nuts that cannot be reached with other wrenches
D) remove hex head screws from refrigerator cabinets

Question 19

A gauge manifold used in refrigeration work may include ____.

A) compound gauge, high-pressure gauge, manifold, valves and hoses
B) either two or four valves
C) a four-way valve design using a shutoff valve for each hose
D) All of the above.

Question 20

The tool used to create internal threads is called a(n) ____________________.

Question 21

An instrument that can be used to determine the relative humidity of air is the ____________________.

Question 22

A(n) ____________________ is used to measure the amount of CO₂ in flue products.

Question 23

For what is a soldering gun usually used?

Question 24

A vacuum pump removes ____________________ and air from a refrigeration system.

Question 26

The dial-type meter used to measure the pressure in a heating unit flue pipe is called a(n) ____________________.

Question 27

A(n) ____________________ is used to measure the percentage of CO in flue products.

Question 28

What does a VOM meter measure?

Question 29

A(n) ____________________ is used to measure the amount of O₂ in flue products.

Question 30

What is the major advantage of a clamp-on ammeter?