4-47.
4-48.
4-49.
4-50.
4-51.
The distance from the top of one gear tooth
to its bottom, including any clearance is
known by what term?
4-52.
On piping fittings such as crosses and
elbows, what opening is read first?
1.
Working depth
2.
Whole depth
3.
Thickness
4.
Rack teeth
What symbol provide a foundation for
surface finish information?
1.
The smallest opening
2.
The largest opening
3.
The opposing opening
4.
The outlet end
4-53.
On a typical 45° Y-bend with the
dimensions of 45cm x 30cm x 60cm, what
is the measurement of the outlet end?
1.
2.
3.
4 .
1.
35cm
2.
30cm
3.
60cm
4.
75cm
At what degree to the horizontal should you
draw the legs of a finish mark?
4-54.
A brown valve in your space on board ship
indicates that the valve connects piping
carrying what type of fluids?
1.
30
2.
90
3.
45
4.
60
When should you draw an isometric single-
line plumbing diagram?
1.
When details are essential
2.
When speed is essential and pipes are
bent in more than one plane
3.
When the print will be used to install
pipes
4.
When visual appearance is important
How should you show a permanent pipe
connection?
1.
Anesthetics
2.
Flammable
3.
Oxidizing
4.
Toxic and poisonous
4-55.
What additional hazard marking label
should appear on piping with a brown
valve?
1.
FLAM
2.
TOXIC
3.
PHDAN
4.
AAHM
4-56.
Shipboard hydraulic lines carrying excess
fluids overboard are known by what term?
1.
With a crosshair and a note
1.
Return lines
2.
With a small vertical line
2.
Operating lines
3.
With a heavy solid dot
3.
Vent lines
4.
With a open-faced square
4.
Supply lines
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