Answers |Guaranteed to Pass
After using a pipe cutter to cut a piece of pipe, the inside edge of the pipe should be?
✔Correct Answer-deburred with a pipe reamer
carbon steel bolts can be rather than alloy steel bolts to make up a flange if the normal
operating. . . ✔Correct Answer-pressure doesn't exceed 300 PSI
piping is sized by its nominal? ✔Correct Answer-inside diameter from 1/8 inch to 12 inches
which of the listed materials have been used to manufacture piping available in standard
weight, extra strong, and double extra strong wall thickness?
plastic
copper
steel
all the above ✔Correct Answer-steel
Coast guard regulations permit copper pipe to be used for steam service subjected to a max
pressure and temp of? ✔Correct Answer-250 psi 406 F
steam piping subject to main boiler pressure must be hydrostatically tested at specified
intervals. Therefore, which of the following statements is true?
-the piping must be tested at a P and T specified by a Coast Guard marine inspector
-the piping must be tested at 1 1/2 times working P every 4 years
-piping under 3 inches nominal piping size need not to be hydrostatically tested.
-the piping must be tested at 2 times max allowable P every 4 years ✔Correct Answer-piping
under 3 inches nominal piping size need not to be hydrostatically tested.
when renewing sections of pipe in a hydraulic system, the nominal pipe size of the piping always
indicates the? ✔Correct Answer-size for threaded connections
internal pipe threads are cut with? ✔Correct Answer-taps
when pipe is properly screwed into a tapped hole, it will give the correct fit when? ✔Correct
Answer-all but two or three threads are covered
insulation on deck steam piping must be installed securely because? ✔Correct Answer-deck
steam lines are subject to vibration from water hammer
steam supply piping to deck machinery is insulated in order to? ✔Correct Answer-reduce heat
loss from the system