ASSIGNMENT 6
Textbook Assignment:
“Asphalt Plant Supervisor,” and “Well Drilling Superisor,” pages 8-11
through 9-17.
Learning Objective: (continued):
Recognize the operations of an
asphalt plant.
6-1.
Using table
distributor
for asphalt
1.
Between
2.
Between
3.
Between
4.
Between
8-1, what is the
spraying temperature
emulsion SS-1h?
50°F-140°F
75°F-130°F
110°F-160°F
135°F-175°F
6-2.
Final metering of mineral filler
to a mix is accomplished through
what device?
1.
A variable speed vane
2.
A screw feeder
3.
A belt feeder
4.
One of the above, depending
on the material being handled
Learning Objective: Recognize
the operational processes of
a batch asphalt plant.
6-3.
Which of the following units is a
distinguishing feature of a batch
asphalt plant?
1.
The cold aggregate feed
unit
2.
The batching unit
3.
The dryer unit
4.
The dust collector unit
6-4.
From the hot bins, what size
aggregates are deposited into
the weigh-hopper first?
1.
Coarse
2.
Intermediate
3.
Fine
4.
Mineral filler
6-5.
6-6.
6-7.
6-8.
A pugmill’s “live zone” is the net
volume in cubic yards below a line
extending across the top arc of
the inside body shell radius, with
shafts, liners, paddles, and tips
deducted.
1.
True
2.
False
In a batch asphalt plant, in
what location do the aggregates,
mineral filler, and asphalt get
mixed together?
1.
Dryer
2.
Weigh-hopper
3.
Pugmill
4.
Asphalt weigh bucket
In what manual can the batch
asphalt plant supervisor find
details on the setup and
adjustment of the automatic
equipment?
1.
NAVFAC Supervisory
Instructions Manual
2.
COMSECOND/COMTHIRDNCBINST
Equipment Management Manual
3.
Manufacturer operator’s manual
4.
Alfa company operations manual
Learning Objective: Recognize
the operational processes of a
continuous-flow asphalt plant.
What factor must be known at all
times in order to maintain
constant asphalt proportioning?
1.
The temperature of the
aggregate
2.
The output temperature
of the dryer
3.
The temperature of the hot
bins
4.
The temperature of the asphalt
41
