3e571 CDC Volume 2
Practice test for Engineering Assistant Vol 2 CDC
- 1.What facility design element determines how well a facility serves the mission requirement and its occupants on a day in and day out basis?
- A.
Functionality
- B.
Flexibility
- C.
Accuracy
- D.
Economy
- 2.When assessing existing conditions at a proposed construction site, what potential hazards should you look for?
- A.
Weapons storage area, asbestos, lead-based paint, and contaminated soil.
- B.
Asbestos, Weapons storage area, and contaminated soil.
- C.
Asbestos, lead-based paint, and Weapons storage area.
- D.
Asbestos, lead-based paint, and contaminated soil.
- 3.What should govern all military construction design?
- A.
Flexibility
- B.
Accuracy
- C.
Economy
- D.
Function
- 4.What design standards do you need to be aware for all military construction?
- A.
Military and government only.
- B.
Military, industrial, and government
- C.
Military, industrial, and local ordinances.
- D.
Metropolitan ordinances, military, and industrial.
- 5.Where can you find the military design standards for military construction?
- A.
AFMC
- B.
AFCESA
- C.
US Army Corps of Engineers
- D.
United Facilities Guide Specification.
- 6.In the Unified Soils Classification System, what type of soil group does the letter "M" designates?
- A.
Silt
- B.
Sand
- C.
Gravel
- D.
Highly organic
- 7.At least what percent of the soil must be retained on the No. 200 sieve for it to be classified as coarse grained?
- A.
10 percent
- B.
20 percent
- C.
40 percent
- D.
50 percent
- 8.What size sieve is used to distinguish between gravels and sands?
- A.
No. 4
- B.
No. 10
- C.
No. 40
- D.
No. 200
- 9.Which of these properties indicate whether or not soil contains clay?
- A.
Cohesion
- B.
Plasticity
- C.
Compaction
- D.
Permeability
- 10.When wet soil is air-dried in a laboratory, the moisture is removed by evaporation until
- A.
a constant weight is attained
- B.
The meniscus in the pore openings restricts the rate of capillary rise
- C.
The hygroscopic moisture in the soil is in equilibrium with the moisture vapor in the air.
- D.
the capillary fringe in the soil recedes to a point where it is in equilibrium with hygroscopic moisture.
- 11.What is the plasticity index of a soil with a liquid limit of 28 and a plastic limit of 21?
- A.
0.75
- B.
1.33
- C.
7.00
- D.
49.0
- 12.What do we call the particle size distribution of a soil aggregate?
- A.
Angularity
- B.
Durability
- C.
Gradation
- D.
Granularity
- 13.A soil whose individual grains cover a narrow range of particle sizes is
- A.
un-graded
- B.
Gap-graded
- C.
well-graded
- D.
poorly-graded
- 14.What should be done if a structure is likely to be affected by the ground water table or by capillary action?
- A.
Lower the grade line
- B.
Raise the ground water table
- C.
Keep the site location regardless of cost
- D.
Change the site location if there is enough cause
- 15.To prevent the flow of water from standing in low places and seeping into the ground, the minimum longitudinal grade of a ditch should be
- A.
0.2 percent
- B.
0.5 percent
- C.
2 percent
- D.
5 percent
- 16.The maximum grade of ditch side slopes is determined by
- A.
The nature of the soil
- B.
The area to be drained
- C.
Specification limitations
- D.
The equipment available
- 17.Which of these conditions is a function of subsurface drainage?
- A.
To lower the water table
- B.
To raise the water table
- C.
To maintain underground springs
- D.
To collect water in pools or layers beneath the surface
- 18.What is the minimum distance required between the top of the base course and the natural water table if frost action is to be prevented?
- A.
2 feet
- B.
3 feet
- C.
4 feet
- D.
5 feet
- 19.Asphalt cement is usually made fluid by
- A.
Heating
- B.
adding alcohol
- C.
Mixing with coal air
- D.
Adding ascorbic acid
- 20.Which of these is not one of the functions of aggregate in a bituminous pavement mix?
- A.
Provide a nonskid surface
- B.
Provide a binder for the bitumen
- C.
Transmit the load to the base course
- D.
Take the abrasive action of the traffic
- 21.Which of these can determine an aggregate's affinity for water?
- A.
Wash test
- B.
Stripping test
- C.
Distillation test
- D.
Mohs hardness scale
- 22.Which variables affect the final mix-design of a bituminous pavement?
- A.
Moisture content and aggregate size
- B.
Moisture content, intended use, gradation, and angularity
- C.
Intended use, binder type, loading, and maximum aggregate size
- D.
Plasticity, binder type, maximum aggregate size, and angularity
- 23.N/A
- A.
N/A
- B.
N/A
- 24.Water's main function in concrete mix is to
- A.
Make the mix workable and inhibit hydration
- B.
make the mix workable and start hydration
- C.
Increase weight of mix and inhibit hydration
- D.
decrease the amount of mix and start hydration
- 25.Fine aggregate used in cement paste should have a
- A.
Rough shape to promote workability
- B.
Round shape to promote workability
- C.
Round shape to promote uniformity
- D.
Rough shape to promote uniformity
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