What sealing compound should be used on brass oxy-acetylene fittings?

A. Nothing
B. Never-seize
C. Multi-purpose thread sealant
D. Teflon® tape


A. Nothing

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From which layer of the OSI model does Transfer Control Protocol (TCP) operate?

A. The physical layer B. The frame layer C. The transport layer D. The application/process layer

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The weight of the volume of water contained in piping or a fixture must be calculated to _____.

a. prevent bursting b. help determine installation costs c. be sure the piping or fixture is adequately supported d. meet code requirements

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Technician A says that a vibration damper, also known as a harmonic balancer, is used to dampen harmful twisting vibrations of the crankshaft. Technician B says that most engines are externally balanced. Which technician is correct?

A) Technician A B) Technician B C) Both technicians D) Neither technician

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Using solubility data of a gas in a solid, explain how you would determine the molar concentration of the gas in the solid at the solid–gas interface at a specified temperature.

What will be an ideal response?

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