Match each tool with its purpose.

A. measures very small pressures that are expressed in IWC
B. measures the air pressure in a duct system
C. measures air volumes at registers and grills
D. measures the speed of an airstream in a duct system
E. measures circuit currents


A. u-tube manometer
B. pitot tube
C. flow hood
D. velometer
E. ammeter

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____ animation is created by generating a path of travel, typically a spline curve, and then assigning the part to move along that path over a fixed period of time.

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a. foundation drain b. subsoil drain c. scupper drain d. area drain

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If line one of a circuit had a potential of 120 V and line two was neutral, the potential voltage (difference) between line one and line two would be zero volts.

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

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The symbol for a float switch illustrates a ball float. It is drawn by adding a ____ to a line.

A. sphere B. circle C. square D. triangle

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