Lesson 4/Practice Exercise
PRACTICE EXERCISE FOR LESSON 4
Instructions
Check your understanding of Lemon 4 by completing the practice exercise. There is only one
correct answer to each question. Try to answer all of the questions without referring to the
lesson materials.
When you have completed all of the questions, turn the page and check your answers against the
correct responses. Each correct response is referenced to specific portions of the lesson material
so that you can review any questions you have missed or do not understand, before continuing to
the next lesson.
1.
Your unit has been given the mission of paving 30 miles of road 22 feet wide. One two-
inch lift of asphalt concrete is to be placed, and maximum plant output is 200 tons/hour at
a unit weight of 150 lbs/cubic foot. You have ten 20-ton dump trucks available and one
SA35 paver. You are to begin paving at the plant. Road speed for the trucks is 30 MPH.
What is the distance from the plant where the inverse paver speed starts to increase (d1) ?
a.
12 miles
b.
18miles
c.
22 miles
d.
28 miles
2.
How many hours will it take to pave this project assuming no loss of time?
a.
622 hours
b.
425 hours
c.
316 hours
d.
262 hours
3.
What is the purpose of using the rotary sweeper?
a.
to level the pavement
b.
to remove excess aggregate
c.
to remove dust
d.
to remove water from the surface
4.
What size tank is mounted on the asphalt distributor?
a.
800 gallons
b.
1000 gallons
c.
1200 gallons.
d.
1500 gallons
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