Two technicians are discussing hard spots in brake drums. Technician A says the drum should be replaced. Technician B says the hard spots are caused by using riveted rather than bonded brake shoes. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A
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The preferred method of insulating elbows in larger pipe sizes is _____.
a. fabricating wrapped covers b. using molded perlite covers, when available c. using 45-degree stovepipe covers d. using diapers
A __________ is the framing member used to stiffen the ends of floor joists where they rest on the sill.
a. bottom plate b. rafter c. band joist d. leader
Briefly explain the reason that a three-phase synchronous motor is often connected to a three-phase industrial feeder circuit with a low lagging power factor.
What will be an ideal response?
What breaks down to form poisonous gas in the presence of flames?
A) A1 refrigerant only B) Compressor insulation C) Halogenated refrigerants D) Refrigerant oil