AND ANSWERS 100% CORRECT
Hydro elevators in low rise applications do not need an _____ _____ room. - ANSWER-
overhead 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 _____ _____. - ANSWER-ground, 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 _____ _____. - ANSWER-Spider 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. - ANSWER-
Hoistway
Code specifies the use of anti-slide devices if the outer edge of the deck is greater than
_____ inches from the center line of the handrail. - ANSWER-12
(True/False) Anti-slide devices must be less than 3/4" in height, have no sharp corners
or edges and fastened to the deck no closer than 4 inches from the handrail and spaced
no greater than 6ft apart. - ANSWER-True
Sometimes referred to as sag switches, _____ _____ switches are located within the
step band of both upper and lower truss assemblies and function to prevent a step that
is sagging by more than _____ inch. - ANSWER-step level, 1/8
Per code, an installed escalator can exceed the 30 degree angle of inclination by _____
degree. - ANSWER-1
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. - ANSWER-1, 180
On power units having the motor beneath the tank, the pump may be either _____
driven or _____ coupled. - ANSWER-belt, 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. - ANSWER-silencer, muffler
On Bolsters/Bolster Assembly, the plunger is fastened to the _____ _____ which is then
mounted to the center of the Bolster Assembly. - ANSWER-platen plate
, With wye-delta, reduced current starting is accomplished without the need for _____. -
ANSWER-resistors
A __________ __________ is used to check a jack hole for plumb. - ANSWER-spider
bob
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
One gallon equals __________ cubic inches. - ANSWER-231
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
If all other elements in a hydraulic elevator system remain the same, what would be the
effect of reducing the diameter of the plunger? - ANSWER-Higher system pressure
Residential elevator maximum platform area is _____ sq ft - ANSWER-15
_____ run buttons should run the platform and sling at leveling speeds only. -
ANSWER-Temporary
A _____ _____ consists of a piston held closed by an adjustable spring and must open
at a certain pressure to prevent any further increase in pressure. - ANSWER-relief valve
A _____ lowering valve allows the car to be lowered at a speed not exceeding 20fpm in
case of power failure. - ANSWER-manual
As the oil temperature changes, the _____ will change as well and will effect the
performance, more specifically, the leveling and approach of the elevator. - ANSWER-
viscosity
Be sure wellways are properly _____ to avoid accidental injury to you, your team or
anyone working outside of our industry. - ANSWER-barricaded
Barricades around the wellway must be _____ inches high and be capable of
withstanding a _____lb force. - ANSWER-42, 200
A _____ protects you if you come in contact with a hot wire or component and then
come in contact with ground. It opens the circuit and diverts the supplied current to
ground. - ANSWER-GFCI
A _____ _____ is useful for horizontal (side-to-side) pulling of the truss while being
lowered into the wellway. - ANSWER-lever hoist