483
Refer to para 4d(8).
485
Refer to para 8c(7).
486
Refer to fig 11.
490
CORRECT.
These type fittings can be used with either rigid or
flexible copper tubing and are made in the usual iron pipe
patterns.
491
Refer to para 11d(3).
492
CORRECT.
The minimum bending radius would be not less than 1-
3/4 inches.
493
Refer to para 34d(3).
496
Refer to para 20g(5).
500
Refer to para 33.
501
CORRECT.
The ball peen hammer has a round ball-shaped head and
is used for all general purpose work.
510
CORRECT.
Pipe is also furnished plain (black) or galvanized and
normally in 21-foot lengths.
521
Refer to para 4b(5).
522
Refer to pars 24c.
523
CORRECT.
If this action is timed correctly, both the rod and
base metal will melt at the same time.
524
CORRECT.
Type K is used for underground or heavy-duty purposes
and type L is used for general indoor plumbing.
527
CORRECT.
Also, use the longest screwdriver available which is
convenient to work with.
Oil or graphite on machine screws
help to drive the screws easier.
Use soap on wood screws.
529
Refer to para 6e(3)(a).
536
Refer to pars 4b.
537
Refer to pars 12a(2)(c).
539
CORRECT.
A welding rod can also be used to start a cut on heavy
sections .
541
Refer to fig 15.
547
Refer to par 5e(3).
562
CORRECT.
The three-sided file tapers toward the point, is
double cut, and has fairly sharp corners.
Refer to figure
35.
153
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