D.E.A.D. Program NBE Arts
Examination Prep: Full-Spectrum
Question Bank with Answer Plus
Verified Rationales [Graded A+]
MOST RECENT
SECTION 1: CREMATION OPERATIONS &
TECHNOLOGY
1. Suspended ash particles, charred paper, dust, soot or other
partially incinerated matter, carried in the products of combustion is
referred to as:
A. Smoke only
B. Fly ash only
C. Both smoke and fly ash
D. Particulate emissions
Correct Answer: B. Fly ash
Rationale: Fly ash consists of suspended particulate matter carried in
combustion products. While smoke and fly ash may occur together, the
specific definition of suspended particles and partially incinerated matter
characterizes fly ash .
2. The maximum temperature at which a human crematory should
be operated for efficient use is:
,A. 1600 degrees F
B. 1800 degrees F
C. 2000 degrees F
D. 2200 degrees F
Correct Answer: B. 1800 degrees F
Rationale: Operating at 1800°F provides optimal efficiency for human
cremation, balancing complete combustion with fuel economy and
equipment longevity .
3. The ignition of the flame in the crematory retort is generally
ignited by:
A. Manual lighter
B. Auto style spark plugs
C. Pilot light
D. Electronic ignition system
Correct Answer: B. Auto style spark plugs
Rationale: Standard crematory retorts utilize auto-style spark plugs for
flame ignition, similar to those used in automotive applications .
4. During the performance of any maintenance on the retort, OSHA
______ procedures should be strictly followed:
A. PPE
B. HAZCOM
C. LOTO (lock-out, tag-out)
D. Bloodborne Pathogen
Correct Answer: C. LOTO (lock-out, tag-out)
,Rationale: Lock-out/tag-out procedures are mandatory OSHA safety
protocols that must be followed during retort maintenance to prevent
accidental startup and ensure worker safety .
5. The term for the special brick that is used to line the firebox or
primary chamber of the crematory retort is:
A. Fire brick
B. Insulating brick
C. Refractory brick
D. Clay brick
Correct Answer: C. Refractory brick
Rationale: Refractory brick is specifically designed to withstand the
extreme temperatures (up to 1800°F) of the cremation process without
degrading .
6. Hydrogen chloride is produced in the cremation process when
______ containing chlorine are cremated:
A. Wood
B. Cardboard
C. Plastics
D. Textiles
Correct Answer: C. Plastics
Rationale: The combustion of chlorine-containing plastics produces
hydrogen chloride as a byproduct, which is why crematories must be
equipped with appropriate emission controls .
, 7. Carbon monoxide release from the crematory retort is an
indication of:
A. Complete combustion
B. Incomplete combustion
C. Overheating
D. Proper air mixture
Correct Answer: B. Incomplete combustion
Rationale: Carbon monoxide is produced when combustion is
incomplete due to insufficient oxygen or improper fuel-air mixture,
indicating operational issues that should be addressed .
8. The air supply introduced under pressure directly into or adjacent
to the fuel bed in a crematory retort is called:
A. Secondary air
B. Primary air
C. Tertiary air
D. Combustion air
Correct Answer: B. Primary air
Rationale: Primary air is the initial air supply introduced under pressure
directly into the fuel bed to support combustion of the container and
remains .
9. Which of these are in the design of a retort?
A. Breach only
B. Flue only
C. Both breach and flue
D. Neither breach nor flue
Examination Prep: Full-Spectrum
Question Bank with Answer Plus
Verified Rationales [Graded A+]
MOST RECENT
SECTION 1: CREMATION OPERATIONS &
TECHNOLOGY
1. Suspended ash particles, charred paper, dust, soot or other
partially incinerated matter, carried in the products of combustion is
referred to as:
A. Smoke only
B. Fly ash only
C. Both smoke and fly ash
D. Particulate emissions
Correct Answer: B. Fly ash
Rationale: Fly ash consists of suspended particulate matter carried in
combustion products. While smoke and fly ash may occur together, the
specific definition of suspended particles and partially incinerated matter
characterizes fly ash .
2. The maximum temperature at which a human crematory should
be operated for efficient use is:
,A. 1600 degrees F
B. 1800 degrees F
C. 2000 degrees F
D. 2200 degrees F
Correct Answer: B. 1800 degrees F
Rationale: Operating at 1800°F provides optimal efficiency for human
cremation, balancing complete combustion with fuel economy and
equipment longevity .
3. The ignition of the flame in the crematory retort is generally
ignited by:
A. Manual lighter
B. Auto style spark plugs
C. Pilot light
D. Electronic ignition system
Correct Answer: B. Auto style spark plugs
Rationale: Standard crematory retorts utilize auto-style spark plugs for
flame ignition, similar to those used in automotive applications .
4. During the performance of any maintenance on the retort, OSHA
______ procedures should be strictly followed:
A. PPE
B. HAZCOM
C. LOTO (lock-out, tag-out)
D. Bloodborne Pathogen
Correct Answer: C. LOTO (lock-out, tag-out)
,Rationale: Lock-out/tag-out procedures are mandatory OSHA safety
protocols that must be followed during retort maintenance to prevent
accidental startup and ensure worker safety .
5. The term for the special brick that is used to line the firebox or
primary chamber of the crematory retort is:
A. Fire brick
B. Insulating brick
C. Refractory brick
D. Clay brick
Correct Answer: C. Refractory brick
Rationale: Refractory brick is specifically designed to withstand the
extreme temperatures (up to 1800°F) of the cremation process without
degrading .
6. Hydrogen chloride is produced in the cremation process when
______ containing chlorine are cremated:
A. Wood
B. Cardboard
C. Plastics
D. Textiles
Correct Answer: C. Plastics
Rationale: The combustion of chlorine-containing plastics produces
hydrogen chloride as a byproduct, which is why crematories must be
equipped with appropriate emission controls .
, 7. Carbon monoxide release from the crematory retort is an
indication of:
A. Complete combustion
B. Incomplete combustion
C. Overheating
D. Proper air mixture
Correct Answer: B. Incomplete combustion
Rationale: Carbon monoxide is produced when combustion is
incomplete due to insufficient oxygen or improper fuel-air mixture,
indicating operational issues that should be addressed .
8. The air supply introduced under pressure directly into or adjacent
to the fuel bed in a crematory retort is called:
A. Secondary air
B. Primary air
C. Tertiary air
D. Combustion air
Correct Answer: B. Primary air
Rationale: Primary air is the initial air supply introduced under pressure
directly into the fuel bed to support combustion of the container and
remains .
9. Which of these are in the design of a retort?
A. Breach only
B. Flue only
C. Both breach and flue
D. Neither breach nor flue
