What type of vent is designed specifically for category I gas appliances?
A) Type B vent B) Single-wall, galvanized metal vent
C) PVC vent D) Type L vent
A
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What is the developed length for an elbow bend in 5" conduit if the center line radius is 20"?
a. 7.85" b. 25" c. 31.4" d. 39.25"
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Which of the following is true with regard to scissor lifts?
a. Scissor lifts are insulated to protect against electrical contact. b. Lifts may only be operated from a platform operator's station. c. All scissor lifts operate in the same way. d. Conduct safety checks for loose and missing parts before operating the lift.
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Why should the steering wheel on a rack and pinion be properly centered?
What will be an ideal response?
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What can be done for a plant that has crown or stem rot?
What will be an ideal response?
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