When a heating system is full of water and at a normal operating temperature, a standard expansion tank should be about _____.

a. empty
b. 10 percent full
c. 20 percent full
d. 35 to 50 percent full


d. 35 to 50 percent full

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What is the most common type of sunload sensor?

A) Photo diode B) Potentiometer C) NTC thermistor D) PTC thermistor

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When cutting thin steel with oxyfuel cutting equipment, hold the torch so that the tip is pointing in the direction the torch is traveling at a _____ degree angle.

a. 10- to 12- b. 15- to 20- c. 21- to 25- d. 30- to 35-

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When all parts of an arrangement—color, texture, shape, size, and line—have a favorable relationship, then ____________________ has been reached

Fill in the blank(s) with correct word

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The _________________________ is perpendicular to the plane of projection.

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

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