NEIEP 800 – FINAL EXAM VERSION 2:
(LATEST 2026–2027 UPDATE), WITH
CORRECT/ACCURATE ANSWERS
Maintenance, Hydraulic Systems, Mechanical & Structural
Components
Questions 1–25
Question 1
With non-finned oil coolers, normal cleaning is accomplished and the result is considered:
A. Ineffective
B. Temporary
C. Satisfactory
D. Inadequate
✅ Correct Answer: C. Satisfactory
Rationale:
Non-finned oil coolers rely on smooth surface heat transfer. Routine cleaning removes dirt and oil residue
effectively, restoring normal cooling performance without requiring specialized procedures.
Question 2
A device consisting of a piston held closed by an adjustable spring and used to prevent pressure from
exceeding a preset limit is called a:
A. Check valve
B. Flow control valve
C. Relief valve
D. Directional valve
✅ Correct Answer: C. Relief valve
,Rationale:
A relief valve protects hydraulic systems by diverting excess pressure back to the reservoir once a preset
pressure is reached, preventing damage to components.
Question 3
A common lowering piston allows the elevator car to be lowered at a controlled speed during a power failure
through:
A. Automatic electrical control
B. Solenoid activation
C. Manual operation
D. Pressure compensation
✅ Correct Answer: C. Manual operation
Rationale:
In the event of power loss, hydraulic elevators use manual lowering systems to safely move the car to a
landing at a controlled speed.
Question 4
As hydraulic oil temperature changes, the property that alters flow rate and directly affects leveling speed is:
A. Density
B. Pressure
C. Viscosity
D. Volume
✅ Correct Answer: C. Viscosity
Rationale:
Oil viscosity decreases as temperature rises, allowing faster flow. Changes in viscosity significantly affect
leveling speed, ride quality, and control accuracy.
Question 5
________ oscillations occur when the platform repeatedly switches direction during the leveling process.
A. Structural
B. Harmonic
, C. Temporary
D. Permanent
✅ Correct Answer: C. Temporary
Rationale:
Temporary oscillations are caused by over-correction during leveling and usually indicate sensitivity issues
in valves or control settings.
Question 6
Which leveling method provides smooth operation at higher speeds by using pressure-based control?
A. Down-slow
B. Up-over
C. Free-fall
D. Static hold
✅ Correct Answer: B. Up-over
Rationale:
The up-over leveling method allows accurate leveling by controlling pressure as the car approaches the
landing, improving ride comfort and accessibility.
Question 7
Over-tightening that causes gradual locking and malfunction most commonly affects the:
A. Sheave
B. Gear reducer
C. Fastened belt
D. Counterweight
✅ Correct Answer: C. Fastened belt
Rationale:
Over-tightened belts increase friction and bearing loads, leading to overheating, premature wear, and
eventual binding or locking.
Question 8
In a gear-type hydraulic pump, the volume of oil delivered to the supply lines is directly proportional to the:
(LATEST 2026–2027 UPDATE), WITH
CORRECT/ACCURATE ANSWERS
Maintenance, Hydraulic Systems, Mechanical & Structural
Components
Questions 1–25
Question 1
With non-finned oil coolers, normal cleaning is accomplished and the result is considered:
A. Ineffective
B. Temporary
C. Satisfactory
D. Inadequate
✅ Correct Answer: C. Satisfactory
Rationale:
Non-finned oil coolers rely on smooth surface heat transfer. Routine cleaning removes dirt and oil residue
effectively, restoring normal cooling performance without requiring specialized procedures.
Question 2
A device consisting of a piston held closed by an adjustable spring and used to prevent pressure from
exceeding a preset limit is called a:
A. Check valve
B. Flow control valve
C. Relief valve
D. Directional valve
✅ Correct Answer: C. Relief valve
,Rationale:
A relief valve protects hydraulic systems by diverting excess pressure back to the reservoir once a preset
pressure is reached, preventing damage to components.
Question 3
A common lowering piston allows the elevator car to be lowered at a controlled speed during a power failure
through:
A. Automatic electrical control
B. Solenoid activation
C. Manual operation
D. Pressure compensation
✅ Correct Answer: C. Manual operation
Rationale:
In the event of power loss, hydraulic elevators use manual lowering systems to safely move the car to a
landing at a controlled speed.
Question 4
As hydraulic oil temperature changes, the property that alters flow rate and directly affects leveling speed is:
A. Density
B. Pressure
C. Viscosity
D. Volume
✅ Correct Answer: C. Viscosity
Rationale:
Oil viscosity decreases as temperature rises, allowing faster flow. Changes in viscosity significantly affect
leveling speed, ride quality, and control accuracy.
Question 5
________ oscillations occur when the platform repeatedly switches direction during the leveling process.
A. Structural
B. Harmonic
, C. Temporary
D. Permanent
✅ Correct Answer: C. Temporary
Rationale:
Temporary oscillations are caused by over-correction during leveling and usually indicate sensitivity issues
in valves or control settings.
Question 6
Which leveling method provides smooth operation at higher speeds by using pressure-based control?
A. Down-slow
B. Up-over
C. Free-fall
D. Static hold
✅ Correct Answer: B. Up-over
Rationale:
The up-over leveling method allows accurate leveling by controlling pressure as the car approaches the
landing, improving ride comfort and accessibility.
Question 7
Over-tightening that causes gradual locking and malfunction most commonly affects the:
A. Sheave
B. Gear reducer
C. Fastened belt
D. Counterweight
✅ Correct Answer: C. Fastened belt
Rationale:
Over-tightened belts increase friction and bearing loads, leading to overheating, premature wear, and
eventual binding or locking.
Question 8
In a gear-type hydraulic pump, the volume of oil delivered to the supply lines is directly proportional to the:
