Why is concave mortar joint profile the most water-leakage resistant profile?
What will be an ideal response?
Because the concave joint is the only profile in which the mortar is pressed against the masonry units with a tool,
providing a tight bond between the mortar and the units.
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Describe the effects of Union, Subtraction, and Intersection.
What will be an ideal response?
The ____ simply states that a gas or liquid that’s flowing through a narrowed-down section of a passage will increase in speed and decrease in pressure compared with the speed and pressure in wider sections of the passageway.
a. Bernoulli principle b. Newton principle c. Einstein principle d. Venturi principle
How does heat capacity correlate with outdoor temperature on a balance point graph?
A) As outdoor temperature increases, the balance point decreases. B) As outdoor temperature increases, heat pump capacity increases. C) As outdoor temperature increases, heat pump capacity decreases. D) As outdoor temperature increases, heat pump capacity remains constant.
What is the primary advantage of using a cold start fuel injector?
A. It allows for a richer air/fuel ratio when starting a cold engine. B. It allows more time for the fuel to vaporize when starting a cold engine. C. It allows for the use of a lower octane fuel when starting a cold engine. D. It allows the PCM to shut down the primary fuel injectors when starting a cold engine.