NEHA-Solid Waste EXAM QUESTIONS AND ANSWERS
Dead animals are best disposed in Either a or b
above Choose one answer.
a.an incinerator or rendering plant
b.a separate area of sanitary landfill
c. a composting bed
d.either a or b above
Which of the following is (are) true about composting? both b and c
above Choose one answer.
a.it has been a great success in the United States
b.it may come from the organic fraction of municipal
solid waste
c. it results in a poor fertilizer
d. both b and c above
After a landfill site is closed, it should be covered with at
__________2 feet least of
compacted soil having a low permeability,
graded to shed rainwater, melting snow, and
surface water.
Choose one answer.
a.5 feet
b.3 feet
c. 2 feet
d.6 feet
, Which of the following is not recommended for a refuse uncovered
base storage area?
Choose one answer.
a.a drained concrete floor
b.ample natural or artificial light and ventilation
c. temperature kept below 50 degrees F
d.uncovered base
In the rectangular furnace, the grates are arranged in tiers
Choose one answer.
a.arches
b. rectangles
c. tiers
d. circles
Additional fuel is needed to incinerate refuse both a and
b Choose one answer.
a.with 30 percent or less rubbish
b.with 50 percent or more moisture
c. with 10 percent or more metals
d.both a and b above
The three essentials for combustion in an incinerator are time, temperature, and
turbulence Choose one answer.
a.temperature, time, and heat
b.time, temperature, and moisture
c. temperature, heat and fuel
d.time, temperature, and turbulence
The direction of operation of a sanitary landfill should be with the
prevailing wind Choose one answer.
a.against the prevailing wind
b.with the prevailing wind
c. perpendicular to the prevailing wind
d.changed daily to be perpendicular to the prevailing
wind
______ reduces the final volume of wastes. a and b
above Choose one answer.
a.compaction
b. maceration
c. pneumatic transport
d.a and b above
The valley or ravine landfill method utilizes "lifts" from the 8 to
10 feet bottom up with depths usually of
Choose one answer.
a.6 to 8 feet
b.8 to 10 feet
c. 10 to 12 feet
d.12 to 14 feet
Dead animals are best disposed in Either a or b
above Choose one answer.
a.an incinerator or rendering plant
b.a separate area of sanitary landfill
c. a composting bed
d.either a or b above
Which of the following is (are) true about composting? both b and c
above Choose one answer.
a.it has been a great success in the United States
b.it may come from the organic fraction of municipal
solid waste
c. it results in a poor fertilizer
d. both b and c above
After a landfill site is closed, it should be covered with at
__________2 feet least of
compacted soil having a low permeability,
graded to shed rainwater, melting snow, and
surface water.
Choose one answer.
a.5 feet
b.3 feet
c. 2 feet
d.6 feet
, Which of the following is not recommended for a refuse uncovered
base storage area?
Choose one answer.
a.a drained concrete floor
b.ample natural or artificial light and ventilation
c. temperature kept below 50 degrees F
d.uncovered base
In the rectangular furnace, the grates are arranged in tiers
Choose one answer.
a.arches
b. rectangles
c. tiers
d. circles
Additional fuel is needed to incinerate refuse both a and
b Choose one answer.
a.with 30 percent or less rubbish
b.with 50 percent or more moisture
c. with 10 percent or more metals
d.both a and b above
The three essentials for combustion in an incinerator are time, temperature, and
turbulence Choose one answer.
a.temperature, time, and heat
b.time, temperature, and moisture
c. temperature, heat and fuel
d.time, temperature, and turbulence
The direction of operation of a sanitary landfill should be with the
prevailing wind Choose one answer.
a.against the prevailing wind
b.with the prevailing wind
c. perpendicular to the prevailing wind
d.changed daily to be perpendicular to the prevailing
wind
______ reduces the final volume of wastes. a and b
above Choose one answer.
a.compaction
b. maceration
c. pneumatic transport
d.a and b above
The valley or ravine landfill method utilizes "lifts" from the 8 to
10 feet bottom up with depths usually of
Choose one answer.
a.6 to 8 feet
b.8 to 10 feet
c. 10 to 12 feet
d.12 to 14 feet
