In a cross-bearing wall structure, the load-bearing walls are ________.
A) parallel to the main axis of the building.
B) perpendicular to the main axis of the building.
C) A or B.
D) A and B.
B) perpendicular to the main axis of the building.
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A(n) ____________________ is a solid-state electronic device where direct current is passed through to produce light.
Fill in the blank(s) with the appropriate word(s).
A pressure relief valve is set at 30 psig. The valve is constantly opening and flooding the floor. What is causing the relief valve to constantly open?
A. The water-regulating valve is broken. B. The system is overfiring. C. The system needs to be calibrated. D. The system requires a new boiler.
The temperature measurement of the air outside around the unit is called:
A) Supply-air temperature. B) Return-air temperature. C) Ambient temperature. D) Approach temperature.
The usual maximum pressure that should be used when pressure bleeding a brake system is ________
A) 20 psi B) 50 psi C) 70 psi D) 30 psi