Answers10
Hydro elevators in low rise applications do not need an _____ _____ room. - ANSWERS-
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 _____
_____. - ANSWERS-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 _____ _____. - ANSWERS-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. - ANSWERS-Hoistway
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. - ANSWERS-1, 180
On power units having the motor beneath the tank, the pump may be either _____ driven or
_____ coupled. - ANSWERS-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. - ANSWERS-silencer, muffler
On Bolsters/Bolster Assembly, the plunger is fastened to the _____ _____ which is then
mounted to the center of the Bolster Assembly. - ANSWERS-platen plate
, With wye-delta, reduced current starting is accomplished without the need for _____. -
ANSWERS-resistors
_____ run buttons should run the platform and sling at leveling speeds only. - ANSWERS-
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. - ANSWERS-relief valve
A _____ lowering valve allows the car to be lowered at a speed not exceeding 20fpm in case of
power failure. - ANSWERS-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. - ANSWERS-viscosity
Be sure wellways are properly _____ to avoid accidental injury to you, your team or anyone
working outside of our industry. - ANSWERS-barricaded
Barricades around the wellway must be _____ inches high and be capable of withstanding a
_____lb force. - ANSWERS-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. -
ANSWERS-GFCI
A _____ _____ is useful for horizontal (side-to-side) pulling of the truss while being lowered into
the wellway. - ANSWERS-lever hoist
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. - ANSWERS-12