NEIEP 800 Final Exam Version 2 (Latest 2026/2027 Update) Questions and Verified Answers | 100% Correct | Grade A 2026/2027
OBJECTIVE ASSESSMENT - EXAM
NEIEP 800 Final Exam
Version 2
Latest 2026/2027 Update | Questions and Verified Answers | 100% Correct | Grade A 2026/2027
75 100% 2026/2027 80%
QUESTIONS VERIFIED ANSWERS EDITION PASSING SCORE
TOPICS COVERED
• Hydraulic Elevator Systems • Safety, Codes & ASME A17.1
• Traction Elevator Systems • Installation & Maintenance
• Electrical Systems & Control Logic • Troubleshooting & Diagnostics
COVER PAGE - 1
,SECTION 1: HYDRAULIC ELEVATOR SYSTEMS
Q1. A 3,500 lb hydraulic elevator with a 6-inch diameter plunger is being installed in a 4-story office
Q1
building. During the initial pressure test, the mechanic notices the car drifts downward at a rate of 3
inches per minute when the pump is off. Which component is most likely responsible for this
uncontrolled descent?
A misaligned motor coupling
An undersized oil reservoir
A worn plunger packing seal
A malfunctioning down solenoid valve
Correct Answer: C
Rationale: Plunger packing seals prevent oil from bypassing the cylinder wall; when worn, oil leaks past the plunger
causing gradual drift. A down solenoid failure would prevent descent entirely, not cause slow drift.
Q2. During a routine service call on a 2,000 lb hydraulic elevator, the mechanic observes that the
Q2
relief valve is weeping oil at 1,200 PSI even though the system is rated for 1,500 PSI. The car is empty
and at the bottom landing. What is the most probable cause of this premature relief?
Foreign debris lodged under the relief valve seat
A clogged oil filter restricting flow
An air bubble trapped in the cylinder
Excessive ambient temperature in the machine room
Correct Answer: A
Rationale: Debris under the relief valve seat prevents full sealing, causing the valve to crack open below its set
pressure. Air bubbles affect smooth operation but do not typically cause premature relief valve weeping.
Q3. A mechanic is troubleshooting a hydraulic elevator that overshoots the top landing by
Q3
approximately 4 inches on every up run before slowly settling back to level. The valve is a
single-speed type with no electronic leveling. Which adjustment should be made first to correct this
issue?
Lengthen the deceleration ramp time
Reduce the up main valve opening speed
Increase the pump discharge pressure
Replace the plunger guide bearings
Correct Answer: B
Rationale: Overshooting on up runs is typically caused by excessive up valve speed sending too much oil too quickly;
reducing the opening speed allows controlled deceleration. Increasing pump pressure would worsen the overshoot.
Q4. In a holeless hydraulic installation, the mechanic must determine the minimum pit depth required
Q4
for a 3,500 lb car with a 1:1 roping and a 48-inch stroke jack. The ASME A17.1 code requires 24
inches of clearance below the fully compressed plunger. What is the minimum pit depth from
finished floor to pit floor?
72 inches
48 inches
96 inches
120 inches
Correct Answer: A
Rationale: Minimum pit depth equals the plunger stroke (48 inches) plus the required 24-inch clearance below the
fully compressed plunger, totaling 72 inches. The 1:1 roping does not affect pit depth in this calculation.
, Q5. A hydraulic power unit in a 5-story building is producing a loud knocking sound every time the
Q5
pump starts. The oil temperature is 140°F and the viscosity is within specification. The mechanic
notices the pressure gauge needle oscillates wildly during startup. Which condition is most likely
causing this noise?
Cavitation due to a partially clogged suction strainer
Thermal expansion of the discharge piping
An oversized motor running above synchronous speed
A cracked pump housing causing internal leakage
Correct Answer: A
Rationale: Cavitation produces knocking sounds and erratic pressure gauge readings when the pump cannot draw
sufficient oil through a restricted suction strainer. A cracked housing would cause steady leakage, not startup
knocking.
Q6. During the installation of a submersible hydraulic power unit, the mechanic must ensure the oil
Q6
reservoir is properly vented. The unit is located in a basement machine room with limited ventilation.
What is the primary purpose of the reservoir vent?
To filter incoming contaminants from the machine room air
To provide an emergency overflow path for the relief valve
To equalize pressure between the cylinder and the reservoir
To prevent vacuum formation during pump operation and allow thermal expansion
Correct Answer: D
Rationale: The reservoir vent prevents vacuum lock during pump suction and accommodates oil thermal expansion.
While some vents have filters, the primary purpose is pressure equalization, not contamination control.
Q7. A mechanic is called to investigate a hydraulic elevator that takes 12 seconds to travel one floor
Q7
during up runs but only 4 seconds during down runs. The valve settings have not been changed, and
the pump motor amperage is normal. Which component is the most likely culprit?
A misadjusted down speed needle valve
A worn plunger with excessive clearance
A failing pump motor capacitor
A stuck or partially open bypass check valve
Correct Answer: D
Rationale: A stuck bypass check valve allows oil to recirculate during up runs, dramatically reducing flow to the
cylinder and slowing ascent. Down speed is gravity-assisted and unaffected by pump flow, explaining the asymmetry.
Q8. On a holeless hydraulic elevator with a 2:1 roping arrangement, the mechanic needs to calculate
Q8
the actual plunger stroke required to achieve a 14-foot travel distance. Given the 2:1 mechanical
advantage, what is the minimum plunger stroke needed?
14 feet
28 feet
21 feet
7 feet
Correct Answer: D
Rationale: With a 2:1 roping arrangement, the plunger moves half the distance of the car travel; therefore, a 14-foot
car travel requires a 7-foot plunger stroke. This is a fundamental principle of hydraulic roping systems.
OBJECTIVE ASSESSMENT - EXAM
NEIEP 800 Final Exam
Version 2
Latest 2026/2027 Update | Questions and Verified Answers | 100% Correct | Grade A 2026/2027
75 100% 2026/2027 80%
QUESTIONS VERIFIED ANSWERS EDITION PASSING SCORE
TOPICS COVERED
• Hydraulic Elevator Systems • Safety, Codes & ASME A17.1
• Traction Elevator Systems • Installation & Maintenance
• Electrical Systems & Control Logic • Troubleshooting & Diagnostics
COVER PAGE - 1
,SECTION 1: HYDRAULIC ELEVATOR SYSTEMS
Q1. A 3,500 lb hydraulic elevator with a 6-inch diameter plunger is being installed in a 4-story office
Q1
building. During the initial pressure test, the mechanic notices the car drifts downward at a rate of 3
inches per minute when the pump is off. Which component is most likely responsible for this
uncontrolled descent?
A misaligned motor coupling
An undersized oil reservoir
A worn plunger packing seal
A malfunctioning down solenoid valve
Correct Answer: C
Rationale: Plunger packing seals prevent oil from bypassing the cylinder wall; when worn, oil leaks past the plunger
causing gradual drift. A down solenoid failure would prevent descent entirely, not cause slow drift.
Q2. During a routine service call on a 2,000 lb hydraulic elevator, the mechanic observes that the
Q2
relief valve is weeping oil at 1,200 PSI even though the system is rated for 1,500 PSI. The car is empty
and at the bottom landing. What is the most probable cause of this premature relief?
Foreign debris lodged under the relief valve seat
A clogged oil filter restricting flow
An air bubble trapped in the cylinder
Excessive ambient temperature in the machine room
Correct Answer: A
Rationale: Debris under the relief valve seat prevents full sealing, causing the valve to crack open below its set
pressure. Air bubbles affect smooth operation but do not typically cause premature relief valve weeping.
Q3. A mechanic is troubleshooting a hydraulic elevator that overshoots the top landing by
Q3
approximately 4 inches on every up run before slowly settling back to level. The valve is a
single-speed type with no electronic leveling. Which adjustment should be made first to correct this
issue?
Lengthen the deceleration ramp time
Reduce the up main valve opening speed
Increase the pump discharge pressure
Replace the plunger guide bearings
Correct Answer: B
Rationale: Overshooting on up runs is typically caused by excessive up valve speed sending too much oil too quickly;
reducing the opening speed allows controlled deceleration. Increasing pump pressure would worsen the overshoot.
Q4. In a holeless hydraulic installation, the mechanic must determine the minimum pit depth required
Q4
for a 3,500 lb car with a 1:1 roping and a 48-inch stroke jack. The ASME A17.1 code requires 24
inches of clearance below the fully compressed plunger. What is the minimum pit depth from
finished floor to pit floor?
72 inches
48 inches
96 inches
120 inches
Correct Answer: A
Rationale: Minimum pit depth equals the plunger stroke (48 inches) plus the required 24-inch clearance below the
fully compressed plunger, totaling 72 inches. The 1:1 roping does not affect pit depth in this calculation.
, Q5. A hydraulic power unit in a 5-story building is producing a loud knocking sound every time the
Q5
pump starts. The oil temperature is 140°F and the viscosity is within specification. The mechanic
notices the pressure gauge needle oscillates wildly during startup. Which condition is most likely
causing this noise?
Cavitation due to a partially clogged suction strainer
Thermal expansion of the discharge piping
An oversized motor running above synchronous speed
A cracked pump housing causing internal leakage
Correct Answer: A
Rationale: Cavitation produces knocking sounds and erratic pressure gauge readings when the pump cannot draw
sufficient oil through a restricted suction strainer. A cracked housing would cause steady leakage, not startup
knocking.
Q6. During the installation of a submersible hydraulic power unit, the mechanic must ensure the oil
Q6
reservoir is properly vented. The unit is located in a basement machine room with limited ventilation.
What is the primary purpose of the reservoir vent?
To filter incoming contaminants from the machine room air
To provide an emergency overflow path for the relief valve
To equalize pressure between the cylinder and the reservoir
To prevent vacuum formation during pump operation and allow thermal expansion
Correct Answer: D
Rationale: The reservoir vent prevents vacuum lock during pump suction and accommodates oil thermal expansion.
While some vents have filters, the primary purpose is pressure equalization, not contamination control.
Q7. A mechanic is called to investigate a hydraulic elevator that takes 12 seconds to travel one floor
Q7
during up runs but only 4 seconds during down runs. The valve settings have not been changed, and
the pump motor amperage is normal. Which component is the most likely culprit?
A misadjusted down speed needle valve
A worn plunger with excessive clearance
A failing pump motor capacitor
A stuck or partially open bypass check valve
Correct Answer: D
Rationale: A stuck bypass check valve allows oil to recirculate during up runs, dramatically reducing flow to the
cylinder and slowing ascent. Down speed is gravity-assisted and unaffected by pump flow, explaining the asymmetry.
Q8. On a holeless hydraulic elevator with a 2:1 roping arrangement, the mechanic needs to calculate
Q8
the actual plunger stroke required to achieve a 14-foot travel distance. Given the 2:1 mechanical
advantage, what is the minimum plunger stroke needed?
14 feet
28 feet
21 feet
7 feet
Correct Answer: D
Rationale: With a 2:1 roping arrangement, the plunger moves half the distance of the car travel; therefore, a 14-foot
car travel requires a 7-foot plunger stroke. This is a fundamental principle of hydraulic roping systems.
