Grade 7 and Grade 8 TLE- RAC Servicing

1.The tubing intended for refrigeration and air conditioning installation should be.

• A. Wet

• B. Clean and dry

• C. Moisturized

• D. Oily

2. The tubing to be swaged is clamped

• A. Flaring block

• B. Bench vise

• C. Vise grip

• D. Pliers

3. Which tools are used to enlarge and swage the end of the copper

tubing?

• A. Flaring Process

• B. Bending tools

• C. Flaring block

• D. Swaging tools

4. What is the excellent heat source for silver brazing?

• A. Soldering iron

• B. Oxy-acetylene

• C. Blow torch

• D. Electric stove

5. What tool is used for tightening or loosening screws in extremely closed places?

• A. Offset

• B. Torx head

• C. Flat screw

• D. Stub

6. A wrench with flat interior surface so that it is less likely to slip off when

working with hex head bolts, nuts, or screws.

• A. Open end

• B. Box wrench

• C. Combination

• D. Flat nut

7. What kind of tubing is considered strong, highly resistant to corrosion, and easily

connected to fittings by either flaring or brazing?

• A. Rubber

• B. Stainless Steel Tubing

• C. Aluminium

• D. Copper

8. Which of the following tubing is installed in the suction and discharge lines of the system in

order to prevent vibrations of the mechanism?

• A. Copper Tube

• B. Rubber

• C. Steel

• D. Plastic

9. Which tools are used to enlarge the end of the tubing to make flared a fitting?

• A. Swaging tools

• B. Flaring tools

• C. Bending tools

• D. Cutting tools

10. The process of applying molten metal to heated metals is called

• A. Clamping

• B. Soldering

• C. Welding

• D. Riveting