Technician A says that at stall speed the impeller is spinning as fast as the engine can drive it. Technician B says that at stall speed the turbine is stationary. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician


C) Both technicians

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The smoke shelf is built by rolling the back wall of firebrick lining forward until it meets the rear flange of the fireplace damper.

Answer the following statement true (T) or false (F)

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Building codes typically require all wood to be ____" minimum above the finish grade.

A. 4 B. 6 C. 8 D. 10

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Fusion welding is done extensively on iron

Indicate whether the statement is true or false.

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Describe when a reamer should be used on a hole.

What will be an ideal response?

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