What are some of the accessories required for a hot water boiler?
What will be an ideal response?
Shutoff valves, air purging fittings, automatic fill valves, flow control valves, expansion tanks, safety controls, and gauges.
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Explain how a datum axis may be established where an internal diameter is designated as a secondary datum feature and referenced in a feature control frame at RMB.
What will be an ideal response?
Algae are single-celled plants that function principally as primary producers in the soil ecosystem
Indicate whether the statement is true or false
The purpose of completing the comprehensive engineering survey before demolition operations begin is to determine:
A. Structural integrity of columns, beams. B. Structural integrity of floors, walls. C. Structural integrity of framing , roofs D. All of the above
A type of hand-operated winching device that should never be used for vertical overhead lifting is a _____
a. chain hoist b. come-along c. block and tackle d. ratchet lever hoist