E&m
What will be an ideal response?
Evaluation and management
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Which of the following statements regarding flame spread rating tests is the MOST accurate?
A) Even though interior finish material is intended to be used in varying thicknesses, it only needs to be tested in a single thickness. B) Test conditions provide an absolute measure of the spread of fire travel. C) Plastic material that drips on the floor of the test furnace will not affect the accuracy of the evaluation of the material. D) For test results to be accurate, specimens must be attached to the furnace with the same materials and methods used in the actual installations.
There is a limit to which the speed a stream of water can travel through a hoseline. If the speed is increased beyond these limits, the friction loss becomes so great that the entire stream is agitated by resistance, this agitation causes a point of turbulence called____
A. Pressure resistance limit B. Water hammer C. Cavitation D. Critical velocity