What is the purpose of the ASTM standards?
What will be an ideal response?
ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
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Describe the welds required (if any) to join A1 to A4.
Review drawing number 523879C0A and then answer the question.
What are advantages of using large central air handling units to serve multiple floors of a high rise? Select all that apply.
A) Less noise on occupied space. B) Installing fewer units will reduce the cost of unit installation. C) Ductwork will be less expensive.
Air in a hydronic system can cause ____.
A. reduced water circulation B. increased water concentration C. corrosion D. Both a and c.
A weak-sounding horn is being diagnosed. Technician A says that a poor ground connector at the horn itself could be the cause. Technician B says that an open relay can be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician