CDC 3e251 Set B Vol. 3

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  • 1/101 Questions

    Which materials can you use to prevent berm erosion?

    • Sod
    • Clay
    • Soil-cement
    • All of the above
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CDC 3e251 Set B Vol. 3 - Quiz
About This Quiz

This quiz will cover all URE multiple choice questions from Vol. 3 of the B-Set of Pavements and Construction Equipment Operator 5-Level upgrade course. All questions are taken directly from the UREs and the multiple choice options are the same. Correct answers reflect the correct answers from the CDC themselves and not necessarily the correct See moreanswers from the CERTest.

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  • 2. 

    How many, if any, damaged parts can you have on an oxyacetylene welding system and still be able to use the system?

    • None

    • One

    • Two

    • Three

    Correct Answer
    A. None
    Explanation
    An oxyacetylene welding system requires all parts to be in good condition in order to function properly and safely. Even a single damaged part can compromise the effectiveness of the system and potentially lead to accidents or malfunctions. Therefore, it is not possible to have any damaged parts and still be able to use the system.

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  • 3. 

    How many, if any, damaged parts can you have on an oxyacetalene welding system and still be able to uyse the system?

    • 0

    • 1

    • 2

    • 3

    Correct Answer
    A. 0
    Explanation
    An oxyacetylene welding system requires all its parts to be in good condition in order to function properly. Any damaged part can compromise the safety and effectiveness of the system. Therefore, having even one damaged part would make it impossible to use the system. Hence, the correct answer is 0.

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  • 4. 

    A sanitary landfill should NOT be located near...

    • A spring

    • A mjor highway

    • Railroad tracks

    • Power lines

    Correct Answer
    A. A spring
    Explanation
    A sanitary landfill should not be located near a spring because springs are natural sources of water that emerge from the ground. If a landfill is situated near a spring, there is a high risk of contamination. The pollutants and toxins from the landfill can seep into the groundwater, which can then flow into the spring, contaminating the water source. This can have detrimental effects on the environment and public health, as the contaminated water can be used for drinking, irrigation, and other purposes. Therefore, it is crucial to avoid locating a landfill near a spring to protect the integrity and safety of the water source.

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  • 5. 

    What is the first thing to assemble on the temper tent?

    • Window sections

    • End sections

    • Tent frame

    • The fly

    Correct Answer
    A. Tent frame
    Explanation
    The first thing to assemble on the temper tent is the tent frame. This is because the tent frame provides the structure and support for the entire tent. Once the frame is assembled, the other components such as the window sections, end sections, and the fly can be attached to complete the assembly of the temper tent.

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  • 6. 

    Concertainer revetments are lined with a...

    • Cotton liner

    • Plastic liner

    • Sandbag liner

    • Geofabric liner

    Correct Answer
    A. Geofabric liner
    Explanation
    Concertainer revetments are structures used for erosion control and flood protection. They are made up of wire mesh baskets filled with soil or other materials. A geofabric liner is a suitable choice for lining these revetments because it is a permeable material that allows water to pass through while retaining the soil inside the baskets. This prevents erosion and provides stability to the revetments. Geofabric liners are also durable and resistant to degradation, making them an ideal option for long-term protection against erosion and flooding.

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  • 7. 

    The purpose of revetments is to...

    • Protect parked aircraft and essential facilities

    • Construct contingency water storage tanks

    • Store uneeded fill material

    • Serve as attack decoys

    Correct Answer
    A. Protect parked aircraft and essential facilities
    Explanation
    Revetments are structures built to protect parked aircraft and essential facilities. They act as a barrier against potential damage caused by natural disasters, such as floods or high winds, as well as protect against potential attacks. By providing a physical barrier, revetments ensure the safety and security of parked aircraft and essential facilities, minimizing the risk of damage and ensuring their operational readiness.

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  • 8. 

    Concertainer revetmenst are held together using...

    • Rebar

    • Zip strips

    • Angle irons

    • Connecting pins

    Correct Answer
    A. Connecting pins
    Explanation
    Concertainer revetments are structures made of wire mesh containers filled with soil or other materials to prevent erosion or provide protection against floods. These containers are held together using connecting pins, which secure the adjacent units and maintain the overall stability of the revetment system. Rebar, zip strips, and angle irons are not typically used for this purpose.

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  • 9. 

    How are the sides and cross panels of the A-1 and B-1 revetments held together?

    • They are bolted together

    • They are welded together

    • They are held together with pins

    • Sandbags are palced against them

    Correct Answer
    A. They are held together with pins
    Explanation
    The sides and cross panels of the A-1 and B-1 revetments are held together with pins. This means that the different components of the revetments are joined and secured using pins, which provide stability and strength to the structure.

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  • 10. 

    If at all possible, the construction of a soil-cement road should be restricted during...

    • Peace time

    • Dry periods

    • Nighttime

    • Freezing weather

    Correct Answer
    A. Freezing weather
    Explanation
    During freezing weather, the water in the soil can freeze, causing the soil to expand and potentially crack or break apart. This can lead to a weakened road structure and result in potholes or other damage. Therefore, it is best to restrict the construction of a soil-cement road during freezing weather to ensure its durability and longevity.

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  • 11. 

    What is a very simple but critical task you must perform, before you light the cutting torch of an oxyacetylene outfit?

    • Check the entire outfit for gas leaks

    • Make sure the serial numbers match

    • Read the manufacturer's instructions

    • Review the shop operating procedures

    Correct Answer
    A. Check the entire outfit for gas leaks
    Explanation
    Before lighting the cutting torch of an oxyacetylene outfit, it is crucial to check the entire outfit for gas leaks. This is important to ensure the safety of the operator and prevent any potential accidents or hazards that may arise from leaking gas. By checking for gas leaks, any potential issues can be identified and addressed before the torch is ignited, minimizing the risk of fire or explosion.

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  • 12. 

    When an enemy attack becomes eminent, the RRR assets must be...

    • Relocated to a central location

    • Mobilized to the entire flight line area

    • Kept in the equipment yard for easy access

    • Equally divided and dispersed to separate areas

    Correct Answer
    A. Equally divided and dispersed to separate areas
    Explanation
    In order to effectively respond to an enemy attack, it is important to divide and disperse the RRR assets to separate areas. By doing so, the assets are distributed in different locations, making it harder for the enemy to target and neutralize them all at once. This strategy also ensures that the assets are readily available and accessible in multiple areas, allowing for a more efficient and coordinated response to the attack.

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  • 13. 

    Before you can use any material on a DoD airfield you must make sure it...

    • Is certified for use

    • Meets the tempurature ranges

    • Settles below the surface of neighboring runways

    • Produces a clean flexible patch of the runway surface

    Correct Answer
    A. Is certified for use
    Explanation
    Before using any material on a DoD airfield, it is necessary to ensure that it is certified for use. This certification ensures that the material meets the required standards and specifications for safety and performance on the airfield. Certification is important to maintain the integrity and functionality of the airfield, as using uncertified materials could pose risks and potentially compromise the operations and safety of aircraft.

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  • 14. 

    Why must you crack open each cylinder outlet valve before you attach regulators?

    • To loosen the cylinder valve

    • To see if there is pressure in the cylinder

    • To blow out any dirt lodged in the outlet nipple

    • The cylinder valves should not be opened before the regulators are attached

    Correct Answer
    A. To blow out any dirt lodged in the outlet nipple
    Explanation
    Before attaching regulators, it is necessary to crack open each cylinder outlet valve to blow out any dirt that may be lodged in the outlet nipple. This is important because if there is any dirt or debris present, it can potentially clog the regulators or cause damage to the equipment. By cracking open the cylinder outlet valve, any dirt or debris can be expelled, ensuring proper functioning of the regulators and preventing any potential issues or blockages.

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  • 15. 

    When closing down an Oxyacetylene unit, which valve do you close first?

    • Cylinder valves?

    • Flashback arresters

    • Oxygen torch valves

    • Acetylene torch valves

    Correct Answer
    A. Oxygen torch valves
    Explanation
    When closing down an Oxyacetylene unit, it is important to close the oxygen torch valves first. This is because oxygen supports combustion and is highly flammable, so shutting off the oxygen supply first ensures that any potential fire or explosion risks are minimized. By closing the oxygen torch valves before any other valves, the flow of oxygen is stopped, reducing the chances of accidents or hazards occurring during the shutdown process.

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  • 16. 

    We join the sections of the temper tents together with...

    • Snaps

    • Beckets

    • Zippers

    • Buttons

    Correct Answer
    A. Beckets
    Explanation
    Beckets are strong loops or handles that are used to join or secure different sections of the temper tents together. They provide a secure and reliable connection between the sections, ensuring that the tent remains stable and intact. Snaps, zippers, and buttons are not typically used for joining tent sections together as they may not provide the same level of strength and stability as beckets.

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  • 17. 

    Why is a pure acteylene flame smoky?

    • It has a high percentage of oxides in it

    • Because there is not enough oxygen in the air to burn the acetylene completely

    • It has a high percentage od nitrides in it

    • There is not enough hydrogen in the air to burn the acetylene completely?

    Correct Answer
    A. Because there is not enough oxygen in the air to burn the acetylene completely
    Explanation
    A pure acetylene flame is smoky because there is not enough oxygen in the air to burn the acetylene completely. Incomplete combustion occurs when there is insufficient oxygen available for the reaction, resulting in the production of soot and smoke. Acetylene requires a specific ratio of oxygen to burn cleanly and efficiently. When this ratio is not met, carbon particles are formed, leading to the smoky flame.

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  • 18. 

    The slot made during the oxyacetylene cutting we call the...

    • Cut

    • Kerf

    • Slice

    • Break

    Correct Answer
    A. Kerf
    Explanation
    The slot made during the oxyacetylene cutting is called the "kerf". The term "kerf" refers to the width of the cut made by a saw or other cutting tool. In the context of oxyacetylene cutting, the kerf represents the width of the groove or slot created by the process.

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  • 19. 

    Who determines how much fill is needed at the crater repair sites?

    • Crater OIC

    • Creater NCOIC

    • Dozer operator

    • Dump truck operator

    Correct Answer
    A. Creater NCOIC
    Explanation
    The Crater NCOIC is responsible for determining how much fill is needed at the crater repair sites. As the Non-Commissioned Officer in Charge, they have the authority and expertise to assess the extent of the damage and calculate the amount of fill required for proper repair. They oversee the operations and make informed decisions regarding the quantity of fill needed to effectively restore the crater site.

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  • 20. 

    When treating a coil-cement road area for final finishing, you divide the areas into sections.  The purpose of this is to...

    • Reduce the cement content

    • Make the areas easier to work

    • Lessen the equipment that is needed

    • Make it possible to complete and area in one working day

    Correct Answer
    A. Make it possible to complete and area in one working day
    Explanation
    Dividing the coil-cement road area into sections allows for easier management and completion of each section within a single working day. By breaking down the area, the workers can focus on one section at a time, ensuring that it is properly finished before moving on to the next section. This approach helps in efficient utilization of time and resources, allowing for timely completion of the entire area.

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  • 21. 

    What is one of the first things you do after constructing a lagoon?

    • Construct fire breaks

    • Slope the lagoon walls

    • Dispose of excess materials

    • Secure the area with fencing

    Correct Answer
    A. Secure the area with fencing
    Explanation
    After constructing a lagoon, one of the first things to do is to secure the area with fencing. This is important to prevent unauthorized access and ensure safety. Fencing helps to keep people and animals away from the lagoon, reducing the risk of accidents or contamination. It also serves as a boundary marker, clearly defining the area and indicating that it is a restricted zone. By securing the area with fencing, potential hazards can be minimized, and the lagoon can be properly protected and maintained.

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  • 22. 

    What is the newest all-purpose tent type shelter used by the Air Force?

    • Temper Tent system

    • GP Medium system tent

    • GP Large system tent

    • Small Shelter System

    Correct Answer
    A. Small Shelter System
    Explanation
    The Small Shelter System is the newest all-purpose tent type shelter used by the Air Force. This implies that the other options mentioned, such as the Temper Tent system, GP Medium system tent, and GP Large system tent, are not as recent or commonly used by the Air Force.

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  • 23. 

    We can do oxyacetylene cutting without any special preacutions on...

    • Cast iron

    • Aluminum

    • Stainless steel

    • All low and medium carbon steels

    Correct Answer
    A. All low and medium carbon steels
    Explanation
    Oxyacetylene cutting can be done without any special precautions on all low and medium carbon steels because these materials have lower carbon content, which makes them less prone to cracking or distortion during the cutting process. Additionally, the high heat generated by the oxyacetylene flame is effective in cutting through these types of steels. However, special precautions may be necessary when cutting other materials such as cast iron, aluminum, and stainless steel due to their different properties and potential challenges during the cutting process.

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  • 24. 

    What metal must never be used on an acetylene hose because it forms an unstable compound with acetylene?

    • Aluminum

    • Copper

    • Brass

    • Steel

    Correct Answer
    A. Copper
    Explanation
    Copper must never be used on an acetylene hose because it forms an unstable compound with acetylene. This is because acetylene can react with copper to form copper acetylide, which is highly explosive and can cause serious accidents. Therefore, it is important to avoid using copper in any part of the acetylene hose system to ensure safety.

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  • 25. 

    What does the acronym MOS stand for?

    • Major Operating Offensive

    • Minor Operating Secrets

    • Minimum Operating Strip

    • Maximum Operating Strip

    Correct Answer
    A. Minimum Operating Strip
    Explanation
    The acronym MOS stands for Minimum Operating Strip. This refers to the minimum distance required for an aircraft to safely take off or land on a runway. It takes into account various factors such as the aircraft's weight, speed, and runway conditions to ensure a safe operation.

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  • 26. 

    Which method is considered the quickest but has limited success in repairing spalls?

    • Silikal

    • Polyurathane

    • Cold-mix asphalt

    • Magnesium phosphate cement

    Correct Answer
    A. Cold-mix asphalt
    Explanation
    Cold-mix asphalt is considered the quickest method for repairing spalls, but it has limited success. This is because cold-mix asphalt is a temporary solution that is not as durable or long-lasting as other methods. It is often used as a temporary fix until a more permanent solution can be implemented.

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  • 27. 

    The best way to repair damage to a large section of revetment is to...

    • Remove the damaged section

    • Replace the entire revetment

    • Weld patches over the damage

    • Cut the damaged panel and patch it

    Correct Answer
    A. Remove the damaged section
    Explanation
    The best way to repair damage to a large section of revetment is to remove the damaged section. This is because removing the damaged section allows for a clean and effective repair. By removing the damaged section, it ensures that there are no weak points or compromised areas left in the revetment. Additionally, removing the damaged section allows for a proper assessment of the extent of the damage, which can help determine if any other repairs or reinforcements are needed.

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  • 28. 

    You place sandbags, canvas, or burlap sacks around a metal planking culvert in order to...

    • Reduce voids around the culvert

    • Give more strength to the culvert

    • Keep debris from falling into the culvert

    • Give the culvert a better water-tight seal

    Correct Answer
    A. Give the culvert a better water-tight seal
    Explanation
    Placing sandbags, canvas, or burlap sacks around a metal planking culvert helps to give the culvert a better water-tight seal. By filling the voids around the culvert with these materials, it prevents water from seeping through and ensures that the culvert remains watertight. This additional layer acts as a barrier, reducing the risk of water leakage and improving the overall integrity of the culvert.

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  • 29. 

    Which fuel bladder berm is least desirable?

    • Above ground level

    • Below ground level

    • Constructed from earth fill

    • Constructed with a flat top

    Correct Answer
    A. Above ground level
    Explanation
    An above ground level fuel bladder berm is least desirable because it poses a higher risk of leakage or rupture, leading to potential fuel spills and environmental contamination. Being above ground level makes it more susceptible to damage from external factors such as weather conditions, accidental impacts, or vandalism. Additionally, an above ground level berm may require additional safety measures and maintenance to prevent any potential hazards. Therefore, it is considered the least desirable option compared to the other choices provided.

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  • 30. 

    When are you allowed to disperse RRR equipment to designated staging areas situated around the runway?

    • When an attack is eminent

    • After the smoke clears

    • After you recieve an "All clear"

    • After the runway is surveyed

    Correct Answer
    A. After you recieve an "All clear"
    Explanation
    After you receive an "All clear," you are allowed to disperse RRR equipment to designated staging areas situated around the runway. This means that once it has been confirmed that there is no longer a threat or danger present, you can proceed with the distribution of the equipment. It is important to ensure the safety of the area and personnel before initiating any dispersal activities.

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  • 31. 

    Which equipment do we use to clear an area where AM-2 mats are to be assembled?

    • Angle dossier

    • Excavator

    • Grader

    • Small dozer

    Correct Answer
    A. Grader
    Explanation
    A grader is used to clear an area where AM-2 mats are to be assembled. A grader is a heavy equipment machine that is commonly used in construction and road maintenance projects. It is equipped with a long blade that is used to level and smooth the surface of the ground, making it suitable for the assembly of AM-2 mats. The blade can be adjusted to different angles and depths to remove any obstacles or unevenness in the area, ensuring a flat and stable surface for the mats to be placed on.

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  • 32. 

    You are preparing to construct a timber bridge: for this task, your most important consideration is to...

    • Determine if the bridge is a permanent or temporary type of construction

    • Ensure the bridge is constructed according to its projected use

    • Ensure the bridge is constructed to withstand heavy loads

    • Decide where the bridge is to be located

    Correct Answer
    A. Ensure the bridge is constructed according to its projected use
    Explanation
    The most important consideration when constructing a timber bridge is to ensure that it is constructed according to its projected use. This means that the bridge should be designed and built to meet the specific requirements and demands of its intended purpose. Factors such as the expected traffic volume, the weight of the loads it will carry, and the environmental conditions it will be exposed to should all be taken into account during the construction process to ensure that the bridge is safe, durable, and efficient.

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  • 33. 

    Inspect the Small Shelter System Tent electric cable assemblies every...

    • 10 days

    • 20 days

    • 30 days

    • 60 days

    Correct Answer
    A. 30 days
    Explanation
    The Small Shelter System Tent electric cable assemblies should be inspected every 30 days. This regular inspection ensures that the cables are in good condition and functioning properly. By inspecting them at this frequency, any potential issues or damage can be identified and addressed promptly, reducing the risk of electrical hazards or malfunctions.

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  • 34. 

    Which torch cutting technique is one of the more difficult to accomplish?

    • Straight-line cutting

    • Circle cutting

    • Beveling

    • Piercing

    Correct Answer
    A. Beveling
    Explanation
    Beveling is considered one of the more difficult torch cutting techniques to accomplish. This technique involves cutting at an angle or creating a beveled edge on the material being cut. It requires precise control and coordination to maintain the desired angle and produce a clean and accurate cut. Beveling requires a higher level of skill and experience compared to straight-line cutting, circle cutting, or piercing, making it more challenging to execute correctly.

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  • 35. 

    What is the minimum amount of people required to errect a concertainer revetment?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 2
    Explanation
    A concertainer revetment is a type of protective structure made from wire mesh containers filled with soil or other materials. Erecting a concertainer revetment typically involves lifting and placing the containers in a specific arrangement. While it is possible for one person to lift and place the containers, it is generally more efficient and safer to have at least two people working together. One person can hold and guide the container while the other person provides support and helps with the lifting. Therefore, the minimum amount of people required to erect a concertainer revetment is 2.

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  • 36. 

    When cleaning a tip you must use straight, back and forth cleaning motion to keep from...

    • Scoring the tip face

    • Enlarging the orifice

    • Clogging the tip with filings

    • Distorting the preheated flame

    Correct Answer
    A. Enlarging the orifice
    Explanation
    When cleaning a tip, using a straight, back and forth cleaning motion helps to prevent enlarging the orifice. This is because a straight motion ensures that the cleaning tool is evenly distributed across the tip, minimizing the chances of accidentally widening the orifice. By avoiding any irregular or circular motions, the risk of enlarging the orifice and potentially affecting the performance of the tip is reduced.

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  • 37. 

    Which item allows 2 AM-2 mat laying teams to start work in the middle of a runway and work in opposite directions towards the ends of the runway?

    • Typical keylock

    • Starter keylock

    • Towing tube

    • Starter tube

    Correct Answer
    A. Starter keylock
    Explanation
    The starter keylock allows 2 AM-2 mat laying teams to start work in the middle of a runway and work in opposite directions towards the ends of the runway. It is specifically designed to facilitate the starting point for the teams and allows them to work efficiently in opposite directions. The keylock ensures a smooth and coordinated workflow for the mat laying teams.

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  • 38. 

    What are the primary materials we use for expedient marking of the MOS?

    • Black paint with reflective beads

    • White paint with reflective beads

    • Orange paint with reflective beads

    • Yellow paint with reflective beads

    Correct Answer
    A. White paint with reflective beads
    Explanation
    White paint with reflective beads is the correct answer because it provides high visibility and contrast against most backgrounds, making it easier to mark and identify the Military Occupational Specialty (MOS) areas. The reflective beads enhance visibility during low light conditions or when headlights shine on the markings. Black paint would not provide sufficient contrast, while orange and yellow paints may not stand out as effectively against certain backgrounds. Therefore, white paint with reflective beads is the most suitable material for expedient marking of the MOS.

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  • 39. 

    Where do you palce stones that weight LESS than 10 pounds during constructionof berms or dykes?

    • Top of berm

    • Lower center of the berm

    • Lower outside of berm

    • Stones under 10 pounds should never be used

    Correct Answer
    A. Lower center of the berm
    Explanation
    Stones that weigh less than 10 pounds are placed in the lower center of the berm during construction. This placement helps to provide stability and support to the berm, as the heavier stones are typically placed on the top for added weight and strength. Placing the lighter stones in the lower center ensures that they still contribute to the overall stability of the berm, while also allowing for proper weight distribution.

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  • 40. 

    When disassembling sections of the temper tent, when do you remove a single ply floor?

    • Before you remove the liner

    • Before you start disassembly

    • After you remove the tent frame

    • After you remove all internal components

    Correct Answer
    A. After you remove all internal components
    Explanation
    The correct answer is "After you remove all internal components." This means that the single ply floor should be removed after all the internal components of the temper tent have been taken out. Removing the floor at this stage ensures that it doesn't get damaged or hinder the disassembly process.

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  • 41. 

    What is used inside acetylene cylinders to stabilized the pressurized acetylene?

    • Argon

    • Oxygen

    • Acetone

    • Nitrogen

    Correct Answer
    A. Acetone
    Explanation
    Acetone is used inside acetylene cylinders to stabilize the pressurized acetylene. Acetone acts as a solvent and helps to keep the acetylene in a stable state, preventing it from decomposing or becoming explosive. It helps to maintain the pressure inside the cylinder and ensures the safe storage and transportation of acetylene.

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  • 42. 

    A safety feature of oxyacetylene equipment is that...

    • Acetylene connections have right hand threads and and oxygen connections have left hand threads

    • Acetylene connections have left hand threads and and oxygen connections have right hand threads

    • All connections have right hand threads

    • All connections have left hand threads

    Correct Answer
    A. Acetylene connections have left hand threads and and oxygen connections have right hand threads
    Explanation
    The safety feature of oxyacetylene equipment is that acetylene connections have left hand threads and oxygen connections have right hand threads. This is important because it prevents accidental interchange of the two gases, as the left hand threads on the acetylene connections are not compatible with the right hand threads on the oxygen connections. This ensures that the gases are always connected correctly, reducing the risk of explosions or other hazards.

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  • 43. 

    What is the first action you take when repairing a damaged utility located in a bomb crater?

    • Isolate the utility

    • Begin excavating on both sides of the utility

    • Cushion the utility with a load of sand

    • Disregard the utility as backfilling the crater is the priority

    Correct Answer
    A. Isolate the utility
    Explanation
    When repairing a damaged utility located in a bomb crater, the first action to take is to isolate the utility. This means disconnecting it from any power sources or systems to ensure the safety of the repair crew and prevent further damage. By isolating the utility, it can be safely assessed and repaired without any risk of electrical or other hazards. This step is crucial in prioritizing the safety and effectiveness of the repair process.

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  • 44. 

    What two types of concrete revetments are replacing A-1 and B-1 revetments?

    • ARMCO and barrels

    • Bitburg and ARMCO

    • Concrete bins and barrels

    • Bitburg and concrete bins

    Correct Answer
    A. Bitburg and concrete bins
    Explanation
    The correct answer states that Bitburg and concrete bins are the two types of concrete revetments replacing A-1 and B-1 revetments. This implies that the previous revetments, A-1 and B-1, are being replaced by Bitburg and concrete bins.

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  • 45. 

    Which is considered to be a quick and easily constructed temporary culvert?

    • Lean-to

    • Sandbag

    • Small piping

    • Steel planking

    Correct Answer
    A. Lean-to
    Explanation
    A lean-to is considered to be a quick and easily constructed temporary culvert. A lean-to is a simple shelter made by leaning one side of a roof against a wall or tree, providing a sloping roof that can redirect water flow. It can be easily constructed using available materials such as branches, leaves, and tarpaulin. This temporary culvert can be quickly assembled in emergency situations to divert water and prevent flooding.

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  • 46. 

    When abandoning a sanitary ladnfill trench, cover it with at least...

    • 1 foot of material

    • 2 feet of material

    • 3 feet of material

    • 4 feet of material

    Correct Answer
    A. 2 feet of material
    Explanation
    When abandoning a sanitary landfill trench, it is recommended to cover it with at least 2 feet of material. This is necessary to prevent the exposure of waste and to control odors, vectors, and potential contamination of groundwater. A thicker layer of covering material helps to ensure the proper containment and isolation of the waste, minimizing any potential environmental impacts.

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  • 47. 

    The Small Shelter System tent can easily withstand wind loads of...

    • 50 knots

    • 40 knots

    • 30 knots

    • 20 knots

    Correct Answer
    A. 50 knots
    Explanation
    The Small Shelter System tent is designed to withstand wind loads of 50 knots. This means that it is capable of withstanding a strong wind speed of 50 knots without being damaged or collapsing. The tent is built with materials and construction techniques that make it sturdy and resistant to high winds, providing a safe and secure shelter even in challenging weather conditions.

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  • 48. 

    When lighting the oxyacetylene torch you open the...

    • Oxygen valve first

    • Acetylene valve first

    • Oxygen and acteylene valves 1-1/2 turns

    • Oxygen and acetyelene valves all the way open

    Correct Answer
    A. Acetylene valve first
    Explanation
    When lighting an oxyacetylene torch, it is important to open the acetylene valve first. This is because acetylene is a flammable gas and should be ignited first before introducing oxygen. By opening the acetylene valve first, you can create a small flame that can be adjusted to the desired size. Once the acetylene flame is established, the oxygen valve can be gradually opened to achieve the desired flame intensity.

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  • 49. 

    What type of crater repair do we make to upgrade expedient repairs?

    • Permanent

    • Sustainment

    • Crush stone

    • Sand-Grid

    Correct Answer
    A. Sustainment
    Explanation
    Sustainment is the correct answer because when we want to upgrade expedient repairs, we need a type of crater repair that is long-lasting and can provide ongoing support. Sustainment repairs are designed to maintain and enhance the functionality and durability of the repaired area over an extended period of time. This type of repair ensures that the repaired crater remains in good condition and can withstand the demands of regular use.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 28, 2013
    Quiz Created by
    Johnr21077
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