An instrument that provides a direct reading of relative humidity is the _____

a. sling psychrometer
b. manometer
c. velometer
d. hygrometer


d

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The last brick to be laid in a wall is the _____ brick, usually located near the center of the wall.

A. center B. closure C. joining D. head

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Which of the following is the best method of checking out an air filter between service intervals?

A. remove and test with a trouble light B. test with a low pressure gauge C. test with a high pressure gauge D. tap on floor to loosen dust

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Materials which will be used more frequently should be stored _____.

a. in locked storage b. toward the front of the storage area c. completely covered d. toward the back of the storage area

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In contrasting the two main types of bills of materials, the ____ covers an entire job.

A. advance bill B. bill of sales C. originator's receipt D. shop bill

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