Question

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Explanation:

Analyze hose safety criteria

Hose inspection guidelines state that a hose must be discarded if the cover is damaged exposing reinforcement, if it has blisters or bulges, or if it is crushed or kinked. Thus, all listed conditions (a, b, c, d) are correct reasons to discard.

Analyze surface cleaning safety standard

The industry standard length for a surface cleaning control bar (or lance) to prevent accidental contact with the operator's feet is typically 48 inches.

Analyze tube cleaning safety stinger function

When flex-lancing larger tubes, a rigid "stinger" (a stiff piece of pipe/tubing) is installed behind the nozzle. Its primary safety purpose is to prevent the nozzle from turning around inside the tube and coming back toward the operator.

Answer:

Question 4

• a. Cover is damaged exposing
• b. Cover has blisters or bulge
• c. Hose is crushed or kinked.
• d. End fittings are damaged.
• e. All of the above. (Correct answer)

Question 5

• a. 24"
• b. 36"
• c. 48" (Correct answer)
• d. None of the above

Question 6

• a. The nozzle from turning around (Correct answer)
• b. Hands from slipping.
• c. The nozzle from clogging.
• d. None of the above.