The Extinguishing Systems for Hoods, Vent Pipes, Flues or Ducts, as regulated by RCNY §15-04, could use all the following extinguishing agents except
A. Carbon dioxide
B. Fine water spray
C. Steam
D. Hydrogen gas
Ans: D. Hydrogen gas
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A danger of looking at your mirrors for too long is that
A. You will see potential hazards. B. You will travel too far without knowing what is happening on the roadway ahead. C. The mirrors may shake and move.
The length of the end pieces for a given radius is calculated by _____.
a. dividing the center-to-center by 2 b. multiplying the center-to-center by 2 c. multiplying the cutback by 4 d. multiplying the number of segments by 4
What term is used to measure the aggressiveness of friction facings?
A. inertia resistance B. coefficient of friction C. frictional tribology D. kinetic resistance
Ozone has the same chemical properties as carbon monoxide.
Answer the following statement true (T) or false (F)