Manufacturers recommend pressurizing VRF piping to ________ with nitrogen and performing a 24 hour standing leak test
A) 400 — 500 psig B) 200 — 300 psig C) 500 — 600 psig D) 300 — 400 psig
C
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When selecting a point to tie off your own body harness, you should always choose an anchorage point that is _____.
a. at least 20' above where you will be working b. directly below your working position c. capable of supporting at least 5,000 pounds d. low enough to allow you to drop to the ground from the end of your lanyard
If a ferret bites while you hold it, you should immediately put it down
Indicate whether the statement is true or false
One design for a system requires the installation of two identical components. The system will work if at least one of the components works. An alternative design requires four of these components, and the system will work if at least two of the four components work. If the probability that a component works is 0.9, and if the components function independently, which design has the greater probability of functioning?
What will be an ideal response?
Brake tubing is being discussed. Technician A says tubing vibration could cause metal fatigue. Technician B says copper tubing may be used as brake tubing. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B