Gouging operations use a special tip that produces a low-velocity stream of oxygen that _____

a. blows downward
b. pierces the workpiece
c. distorts the flame
d. curves upward


Ans: d. curves upward

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NEC Article 240 covers which of the following?

a. Nontime-delay fuses b. Ampere rating c. Overcurrent protection d. Plug fuses

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The _____ already use biological control methods and may be able to teach us more about them

A) English B) Japanese C) Koreans D) Chinese

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A                                           test creates a situation that places the turbine in a stalled or stopped condition with the impeller at maximum engine throttle position.

Fill in the blank(s) with the appropriate word(s).

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The accompanying figure shows two plumbing symbols. What is the symbol at the top?

A. Urinal B. Wall-mounted lavatory C. Shower D. Water heater

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