Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Fuels Vol. 4 Unit 3
Expedient Field Construction and Repair
| Question | Answer |
|---|---|
| What do you install in a latrine box to prevent soakage of the wood? 625 | A metal deflector inside the box |
| Why do you pile dirt at the end of the straddle trench? 625 | So each user can cover their excreta and toilet paper with dirt |
| What is the difference between a VIP latrine and other pit latrines? 625 | The VIP has a vertical vent pipe with a fly screen at the top |
| What should you install on the top of a burnout latrine’s drum? 625 | A fly-proof self-closing lid |
| How wide do you make a mound latrine? 625 | At least 6 feet wide |
| What do you place at the bottom of a urine soakage pit? 626 | Large stones |
| What influences the degree of stabilization in a stabilization lagoon? 626 | climatic conditions |
| What can you use to seal a stabilization lagoon? 626 | Bentonite Clay |
| When should you construct evaporation lagoons? 626 | When it is impossible to discharge wastewater off base |
| What is the purpose of baffle boards in a septic tank? 626 | They reduce agitation of the layer of scum on the surface of the tank by slowing the water currents through the tank |
| What problem occurs when grease is not allowed to cool down in the trap? 626 | The grease remains uncongealed and passes through the trap |
| How many inches apart are ½” holes drilled in leach field piping? 626 | 6 inches |
| Why is plastic pipe preferred in expedient wastewater systems? 626 | Because of its light weight, strength, and ease of installation |
| What happens if rainwater is allowed to pond? 627 | The subgrade becomes saturated and fails under load |
| What is normally done to damaged, underground storm drains? 627 | They are discarded and open channels or ditches are used |
| What is the most expedient method of removing rainwater? 627 | Digging open ditches |
| What simple rule of thumb should you to use to size an expedient drainage ditch? 627 | The larger the ditch, the more water it will remove |
| What are the two most common landfill methods? 628 | Trench and area |
| What is the usual method of using a sanitary fill? 628 | Dump the waste into a trench or dig one to put it in |
| What do you do with compacted refuse? 628 | cover it with earth |
| How should you use the dirt from the trench excavation? 628 | to build a truck ramp |
| What determines the length of the landfill’s starting trench? 628 | depends on the disposal area |
| For a base of less than 10,000 people, how deep should be the original landfill trench? 628 | about 3 feet deep |
| Where do you use the area construction method? 628 | where there is a high-water table |
| At what angle should you pile a mound of soil or refuse on flat land? 628 | form a 30 degree ramp |
| Why is it helpful to wet refuse before you unload it? 629 | To prevent excessive paper blowing |
| What is involved in maintaining inactive landfills? 629 | After the landfill is closed, filled in, or covered with ashes or dirt, the only maintenance is a periodic check and correcting depressions and cracks |
| What are the most common sources of water supply? 630 | surface waters |
| How can you increase the water yielding capacity of small streams? 630 | by building dams and reservoirs |
| How can you tap water flowing in a muddy stream? 630 | by building an infiltration gallery |
| Which well developed method is still used in many underdeveloped countries? 631 | dug well |
| (625) Which expedient latrine is used if a prolonged deployment is planned? | deep-pit latrines |
| (625) How much fuel oil should you place in the burnout latrine prior to use? | 1/2 gallon |
| (626) From top to bottom, what are the contents of a urine soakage pit? | fine gravel, small stones, large stones |
| (626) To prevent the growth of rooted aquatic plants, how many feet is the minimum depth of an oxidation pond? | 2 feet |
| (628) When you use a trench-in landfill operations with compacted refuse, the | length should be twice the depth of the compacted refuse |
| (628) The area landfill construction method is used | Where there is a high-water table. |
| (628) How many inches of earth should you apply to the daily waste in an area landfill? | 6 inches |
| (629) What should you do to prevent erosion of a completed landfill? | plant grass |
| (630) When you expand water facilities, the capacity of any small dams and reservoirs you build should be capable of impounding at least the total | daily flow |
| (631) In a dug well, the water flows into the casing from the | bottom |
Created by:
Scottydick
Popular Military sets