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P&Q University: Lesson 8 Quiz Answers
1. To size and separate material before secondary and tertiary crushing circuits, or to size and separate material in preparation for final product stockpiling 2. Proper adjustments in speed, stroke, rotation/throw direction and angle of inclination 3. They are less prone to plugging and use gravity to reduce energy and horsepower requirements 4. It removes water content to 14 percent or less so material can be conveyed and stacked 5. When excessive undersize particles fail to pass through openings 6. A replaceable wear surface that can be made up of one or more removable panel selections on a single deck 7. Wire cloth, perforated and flame-cut plate, polyurethane, rubber and hybrid screens 8. To slow material and increase washing efficiency Keep Reading
P&Q University: Lesson 7 Quiz Answers
1. From recycled demolition concrete or asphalt pavement 2. 100 to 1,500 tph 3. Mobile plants 4. Gyratory crushers – both have a mantle that rotates within a bowl 5. The feed system 6. Chisels and blunts 7. Speed and chamber designs 8. It can cause increased maintenance intervals and, if not controlled, can enter the diesel tank and cause problems with the fuel system. The crusher also experiences faster wear. Keep Reading
P&Q University: Lesson 6 Quiz Answers
1. Receiving a load, hauling, dumping and returning 2. It refers to a generation of EPA emissions standards that apply to new diesel engines used in off-highway equipment 3. Rigid frame haul trucks 4. Contact with rocks spilled on the road, the loading area or dump point 5. Keeping the cab sealed well, keeping windows shut, keeping disposable earplugs in the vehicle and turning down the cab radio. 6. Cooled exhaust gas recirculation (CEGR), diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) 7. It uses diesel exhaust fluid (DEF) consisting of water and ammonia for the aftertreatment of exhaust gases. 8. Match the machine to the task; partner with the right loading equipment; identify jobsite restrictions; choose tires carefully; and extend ADT life with dealer support Keep Reading
P&Q University: Lesson 5 Quiz Answers
1. Wheel loaders and hydraulic excavators 2. High benches, multiple benches, excessive tramming and low angle of repose material 3. Poor underfoot conditions, poorly shot material and tight loading areas that restrict loader movement 4. 0.45 to 0.55 min. 5. Material weight, material type, machine stability, machine breakout force, visibility requirements and dump-height requirements 6. Daily to make sure no damage has occurred 7. The removal or excavation, transport and placement of dredged sediments 8. Hydraulic dredging and mechanical dredgings Keep Reading
P&Q University: Lesson 4 Quiz Answers
1. A blasthole 2. The drilling phase 3. Determine the hole size or diameter that fits an application best 4. Percussion (top hammer, out of the hole drills) and rotary (down the hole drills) 5. Mobility; simplicity; reliability and mechanical availability; productivity; and safety 6. Down-the-hole 7. ANFO – ammonium nitrate fuel oil 8. Delay detonators Keep Reading
P&Q University: Lesson 3 Quiz Answers
1. Geologic processes – volcanoes, glaciers, wind, rivers and seas 2. Crushed stone, sand and gravel 3. Western United States 4. Till 5. Sedimentary rocks, limestone and dolomite 6. 14 percent 7. Sandstone and shale 8. True, as long as they meet required specifications Keep Reading
P&Q University: Lesson 2 Quiz Answers
1. GIS 2. It defines the location, size and ownership of properties in an area 3. Rail and barge 4. Mobile crushing plant 5. Stationary plant 6. A track-mounted plant 7. Electrical Resistivity Imaging 8. To locate shallow rock exposures for mapping and sampling Keep Reading
P&Q University: Lesson 1 Quiz Answers
1. Post-World War II suburbanization and construction of the Interstate Highway System 2. 19.5 jobs 3. About 4,000 4. Less than 50,000 tons per year 5. Igneous, sedimentary and metamorphic 6. Sedimentary rock 7. Limestone 8. Ceramic, resin-coated and natural sand Keep Reading
Bucyrus Monighan 6160 walking dragline
In this video, a Bucyrus Monighan 6160 walking dragline stockpiles ore at a mine in Nigeria, Africa. Bucyrus-Erie entered the walking dragline market in 1931 when it purchased a controlling interest in the Monighan Manufacturing Corp. This video was was compiled, narrated and produced by Keith Haddock for the Historical Construction Equipment Association. Keep Reading
