100% Correct!!
See if it will run down by opening the manual lowering valve - ANSWERSIf a hydraulic
elevator will not run down, what is the first thing you should try?
In pounds per square inch - ANSWERSWhen calculating hydraulic system pressure, the
force is expressed in pounds and the area of the plunger is measured in square inches.
How is the pressure expressed?
Pascal's Law - ANSWERSWhat is the name of the scientific principle that allows a
hydraulic elevator to operate?
Every year - ANSWERSHow often must a static load test be performed?
Multiply pressure times area - ANSWERSIf a gauge is used to measure system
pressure with the elevator at rest and the size of the plunger is known, how can the total
weight of the elevator be calculated?
231 - ANSWERSHow many cubic inches are there in one gallon?
28.27 square inches - ANSWERSWhat is the area of a 6" plunger?
200 psi - ANSWERSA weight (force) of 5,000 lbs. is placed on a hydraulic plunger
having an area of 25 square inches. What is the system pressure?
16.3 gallons - ANSWERSHow many gallons of oil will be needed to raise a 4" plunger
25 feet?
Speed and capacity - ANSWERSHow is the duty of a hydraulic elevator rated?
Up valve - ANSWERSWhen a hydraulic elevator is at rest at floor level, what valves are
open?
Up transition - ANSWERSWhat is another term for up slowdown?
To prevent oil from flowing from the jack to the reservoir - ANSWERSWhy is a check
valve required?
Rate of flow in gpm - ANSWERSWhat determines the full speed of a hydraulic elevator?
,The down valve is closed, the check valve is closed, and the up valve is open -
ANSWERSWhich describes the operation of a typical hydraulic block valve with an
elevator landed at the floor?
Full load up pressure - ANSWERSWhat is the definition of "working pressure"?
Up start bypass and relief valve - ANSWERSWhat two functions are combined into a
single valve?
The up limit switches - ANSWERSIn order to perform a plunger stop test, which circuits
would have to be jumpered out?
Check for oil in the reservoir - ANSWERSIf the pump makes a hammering noise, what
would be the first thing to check?
An underground leak - ANSWERSYou pull the main line disconnect switch and close
the line shutoff; the car slowly drifts downward. You don't observe any oil leaking
anywhere. What does this indicate?
carriage, seat, and track - ANSWERSWhat are the three major components that make
up a stairway chairlift?
The rise must be less than the tread - ANSWERSIn order for a stairway to be less than
the maximum allowable angle for a stairway chairlift installation, what must the
relationship between the rise and the tread be?
45 - ANSWERSAccording to code, what is the highest degree angle stairway onto
which a chairlift can be installed?
5. Standing at the bottom and looking up - ANSWERS5. How is the right or left side of a
stairway determined?
6. 250lb, 400 lb - ANSWERS6. Which of the following is the minimum rated load for
both a one- and a two-seat chairlift, respectively?
7. first tread at bottom, first tread below the top, above and below rail splices and center
of each rail section - ANSWERS7. Which of the following would be the correct
placement of brackets supporting tracks on a stairway chairlift?
8. Winding drum and rack & pinion - ANSWERS8. What are the most common types of
drive units for stairway chairlifts?
9. Constant pressure switches - ANSWERS9. What type of switches are used as
call/send switches at the top and bottom of a stairway chairlift?
,10. 24 - ANSWERS10. The edge of the footrest facing the upper landing should be no
more than how many inches, measured vertically, above the step or landing?
11. A safety governor is used. - ANSWERS11. How are safeties applied on a rack and
pinion driven inclined stairway platform lift?
12. 750 lbs. - ANSWERS12. What is the maximum rated capacity of an inclined platform
lift?
13. between 48 and 15 inches - ANSWERS13. On a vertical platform lift the stop button
must be located at what height above the platform floor?
14. 6 inches - ANSWERSWhat is the minimum height of the platform guard on a
stairway chairlift that prevents a wheelchair from rolling off of a platform until it is at a
loading floor?
15. a pressure sensing device under the platform to stop the car - ANSWERSPlatform
lifts that are not required to have a full runway enclosure are required to have which of
the following safety devices?
Basement machine applications - ANSWERSWhich of the following is an exception to
the rule that equipment for a LULA elevator must be contained in machine rooms and
machinery spaces?
35 to 79 inches - ANSWERSAt what distance must the required permanent mechanical
holding device stop and hold a LULA elevator above the pit floor?
84 inches - ANSWERSIn a situation where a standard pit is provided for LULA elevator
and when no hoistway enclosure is provided at the lower level, how high of an
enclosure must be around the pit?
110 ft./min. to 140 ft./min. - ANSWERSOverspeed valves will stop a downward traveling
hydraulic LULA car if it exceeds rated speed by what amount?
75ft./min. - ANSWERSWhat is the maximum speed at which a speed governor (if
provided) on a LULA or residential installation is permitted to trip?
2" - ANSWERSCar door switches in LULA elevators are required to operate no more
than how many inches from full closed?
private residence elevator - ANSWERSWhat type of LULA elevator is not required to be
in an enclosed hoistway, provided that there is a means to stop a down running car if an
obstruction exists below the car?
30 - ANSWERSWhen using wire rope, the diameter of the sheaves must be how many
times the diameter of the suspension ropes?
, pillar - ANSWERSIn a private residence elevator, what is the term for the 2 x 10 plank
that is doubled up to serve as the anchor for the rail brackets?
a powered swing door is permitted - ANSWERSThe hoistway foors for a LULA elevator
have which of the following distinct variations to passenger elevator code?
1,400 lbs. - ANSWERSWhat is the maximum allowable rated load for a LULA elevator?
a non-removable means to stop upward movement of the car - ANSWERSWhen LULA
car overhead that is required by code cannot be provided, what can be installed in lieu
of this code overhead requirement?
1/4 the height - ANSWERSHow far from the wall should the base of the ladder be when
using it during small-scale installations, such as residential and LULA applications?
completely close off hoistway openings - ANSWERSWhat action is necessary on the
part of the installer when the hoistway openings of an installation are not secured from
the general public?
40 - ANSWERSWhat is the maximum speed in f/min. of a residential elevator?
Hydro elevators in low rise applications do not need an _____ _____ room. -
ANSWERSoverhead machine
Some advantages of hydros are lower equipment and building construction costs
because the load of a hydro is carried to the _____ where as the load of a traction car is
carried by the _____ _____. - ANSWERSground, building structure
When drilling the jack hole, the only proper way to determine if the hole is plumb is to
remove the drill stem and bit and use a _____ _____. - ANSWERSSpider Bob
To plumb the hole, a spider bob is attached to a length of piano wire suspended from as
near as possible to the top of the _____ or from a fixed point on the drill rig. -
ANSWERSHoistway
When welding a joint, lay _____ inch tack welds _____ degrees apart, shift it 90
degrees and lay two more 1 inch tack welds 180 degrees apart. - ANSWERS1, 180
On power units having the motor beneath the tank, the pump may be either _____
driven or _____ coupled. - ANSWERSbelt, direct
The purpose of the _____/_____ is to silence the effect of any pulsations in the pump
output and should be as close to the pump as possible. - ANSWERSsilencer, muffler