fluid lines & fittings final

8192. which coupling nut should be selected for use with 1/2 inch aluminum oil lines which are to be assembled using flared tube ends and standard AN nuts sleeves and fittings?

• AN 818-5

• AN 818-16

• AN 818-8

8193. metal tubing fluid lines are sized by wall thickness and

• outside diameter in 1/16 inch increments

• inside diameter in 1/16 inch increments

• outside diameter in 1/32 inch increments

8193-1 rolling type flaring tools are used to flare

• stainless steel, hard copper, mild steel

• titanium, soft copper, corrosion resistant steel

• soft copper, aluminum, brass

8194 from the following sequences of steps, indicate the proper order you would use to make a single flare on a piece of tubing:

1 place tube in proper size in flaring block

2 project end of tube from top to thickness of dime

3 slip fitting nut and sleeve on tube

4 strike plunger several light blows w hammer or mallet and turn 1/2 turn after blow

5 tighten clamp

6 center the plunger or flaring pin over tube

• 1, 3, 5, 2, 4, 6

• 3, 1, 6, 2, 5, 4

• 3, 1, 2, 6, 5, 4

8195 hydraulic tubing, which is damaged in a localized area to such an extent that repair is necessary, may be repaired

• by cutting out the damaged area and utilizing a swaged tube fitting to join the tube ends

• only by replacing the tubing section run (connection to connection) using the same size and material as the original

• by cutting out the damaged section and soldering in a replacement section of tubing

Tags

NGSS.HS-ETS1-3

8196 what is an advantage of a double flare on aluminum tubing?

• ease of construction

• more resistant to damage when the joint is tightened.

• can be applied to any size and wall-thickness of tubing.

8197 a certain amount of slack must be left in a flexible hose during installation because, when under pressure it

• expands in length and diameter

• expands in length and contracts in diameter

• contracts in length and expands in diameter

8198 the term "cold flow" is generally associated with

• the effects of low temperature gasses or liquids flowing in hose or tubing

• impressions left in natural or synthetic rubber hose material.

• flexibility characteristics of various hose materials at low ambient temperatures

what is the color of an AN steel flared-tube fitting?

• Black

• Blue

• Red

8200 which of the following statements is/are correct in reference to flare fittings?

• AN fittings have an identifying shoulder between the end of the threads and the flare cone

• AC and AN fittings are considered identical except for material composition and identifying colors

• AN fittings are generally interchangeable with AC fittings of compatible material composition