The two basic types of fans used in most air handling units are
A) positive pressure and negative pressure
B) reciprocating and orbital
C) centrifugal and axial
D) clockwise rotating and counter clockwise rotating
C
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Normally open contact devices on ladder rungs and are sometimes called ____ contacts.
a. prohibit b. extend c. inhibit d. enable
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An engine failed because it was overheated. Technician A says that a coolant temperature sensor could be defective. Technician B says that the fan relay could be defective. Who is right?
A. Technician A only B. ?Technician B only C. Both A and B D. ?Neither A nor B
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All vaccines are prophylactic
Indicate whether the statement is true or false
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A(n) ____________________ or a(n) ____________________ can be used to connect two pieces of
similar pipe.
Fill in the blank(s) with the appropriate word(s).
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