NEIEP 100 LATEST VERSION EXAM PREP - VERIFIED QUESTIONS
AND ANSWERS - COMPLETE COVERAGE
1. Q: What do hydro elevators in low rise applications not need?
ANSWER An overhead machine room
2. Q: What are some advantages of hydraulic elevators in terms of load
distribution? ANSWER Lower equipment and building construction
costs because the load of a hydro is carried to the ground, whereas the
load of a traction car is carried by the building structure
3. Q: What is the only proper way to determine if a jack hole is plumb
when drilling? ANSWER Remove the drill stem and bit and use a
spider bob
4. Q: Where should a spider bob be attached when plumbing a hole?
ANSWER To a length of piano wire suspended from as near as possible
to the top of the hoistway or from a fixed point on the drill rig
5. Q: What is the proper welding sequence for a joint? ANSWER Lay 1
inch tack welds 180 degrees apart, shift it 90 degrees and lay two more 1
inch tack welds 180 degrees apart
6. Q: On power units with the motor beneath the tank, how may the
pump be driven? ANSWER Belt driven or direct coupled
7. Q: What is the purpose of the silencer/muffler in a hydraulic system?
ANSWER To silence the effect of any pulsations in the pump output; it
should be as close to the pump as possible
8. Q: On bolster assemblies, what is the plunger fastened to? ANSWER
The platen plate, which is then mounted to the center of the bolster
assembly
9. Q: What advantage does wye-delta starting provide? ANSWER
Reduced current starting is accomplished without the need for resistors
10.Q: At what speed should temporary run buttons operate? ANSWER
They should run the platform and sling at leveling speeds only
, 11.Q: What is a relief valve and what does it do? ANSWER A relief
valve consists of a piston held closed by an adjustable spring and must
open at a certain pressure to prevent any further increase in pressure
12.Q: What does a manual lowering valve allow? ANSWER It allows the
car to be lowered at a speed not exceeding 20 fpm in case of power
failure
13.Q: What changes as oil temperature changes, affecting elevator
performance? ANSWER The viscosity will change and will affect the
performance, more specifically, the leveling and approach of the elevator
14.Q: What is the major advantage of a hydraulic elevator regarding
building structure? ANSWER It requires less building structural
support
15.Q: What would be the effect of increasing the size of the oil line if all
other elements remain the same? ANSWER Rate of flow is increased
16.Q: What is the operating pressure of a hydraulic elevator with a
gross weight of 1500 pounds and a plunger area of 15 square inches?
ANSWER 100 psi
17.Q: How many cubic inches equal one gallon? ANSWER 231 cubic
inches
18.Q: Why is it important to follow a welding procedure using a
sequence of short welds on opposite sides of the cylinder? ANSWER
To prevent warping the cylinder
19.Q: If all other elements remain the same, what would be the effect of
reducing the diameter of the plunger? ANSWER Higher system
pressure
20.Q: How do you prevent rusting of the plunger if the jack unit is
installed long before the elevator will be completed? ANSWER Fill it
with oil
21.Q: Is the pressure relief valve operated electronically? ANSWER
False - it is not operated electronically
22.Q: What prevents the plunger from leaving the cylinder? ANSWER
The stop ring
23.Q: What cushions pulsations in the oil caused by the pump?
ANSWER A silencer
AND ANSWERS - COMPLETE COVERAGE
1. Q: What do hydro elevators in low rise applications not need?
ANSWER An overhead machine room
2. Q: What are some advantages of hydraulic elevators in terms of load
distribution? ANSWER Lower equipment and building construction
costs because the load of a hydro is carried to the ground, whereas the
load of a traction car is carried by the building structure
3. Q: What is the only proper way to determine if a jack hole is plumb
when drilling? ANSWER Remove the drill stem and bit and use a
spider bob
4. Q: Where should a spider bob be attached when plumbing a hole?
ANSWER To a length of piano wire suspended from as near as possible
to the top of the hoistway or from a fixed point on the drill rig
5. Q: What is the proper welding sequence for a joint? ANSWER Lay 1
inch tack welds 180 degrees apart, shift it 90 degrees and lay two more 1
inch tack welds 180 degrees apart
6. Q: On power units with the motor beneath the tank, how may the
pump be driven? ANSWER Belt driven or direct coupled
7. Q: What is the purpose of the silencer/muffler in a hydraulic system?
ANSWER To silence the effect of any pulsations in the pump output; it
should be as close to the pump as possible
8. Q: On bolster assemblies, what is the plunger fastened to? ANSWER
The platen plate, which is then mounted to the center of the bolster
assembly
9. Q: What advantage does wye-delta starting provide? ANSWER
Reduced current starting is accomplished without the need for resistors
10.Q: At what speed should temporary run buttons operate? ANSWER
They should run the platform and sling at leveling speeds only
, 11.Q: What is a relief valve and what does it do? ANSWER A relief
valve consists of a piston held closed by an adjustable spring and must
open at a certain pressure to prevent any further increase in pressure
12.Q: What does a manual lowering valve allow? ANSWER It allows the
car to be lowered at a speed not exceeding 20 fpm in case of power
failure
13.Q: What changes as oil temperature changes, affecting elevator
performance? ANSWER The viscosity will change and will affect the
performance, more specifically, the leveling and approach of the elevator
14.Q: What is the major advantage of a hydraulic elevator regarding
building structure? ANSWER It requires less building structural
support
15.Q: What would be the effect of increasing the size of the oil line if all
other elements remain the same? ANSWER Rate of flow is increased
16.Q: What is the operating pressure of a hydraulic elevator with a
gross weight of 1500 pounds and a plunger area of 15 square inches?
ANSWER 100 psi
17.Q: How many cubic inches equal one gallon? ANSWER 231 cubic
inches
18.Q: Why is it important to follow a welding procedure using a
sequence of short welds on opposite sides of the cylinder? ANSWER
To prevent warping the cylinder
19.Q: If all other elements remain the same, what would be the effect of
reducing the diameter of the plunger? ANSWER Higher system
pressure
20.Q: How do you prevent rusting of the plunger if the jack unit is
installed long before the elevator will be completed? ANSWER Fill it
with oil
21.Q: Is the pressure relief valve operated electronically? ANSWER
False - it is not operated electronically
22.Q: What prevents the plunger from leaving the cylinder? ANSWER
The stop ring
23.Q: What cushions pulsations in the oil caused by the pump?
ANSWER A silencer
