Answers Verified 100% Correct
which of the following must be done when leveling bearing plates for setting machine
beams in beam pockets or on brick or mortar walls? a. apply a 1" layer of mortar
under the bearing plate
b. apply a 1" layer of grout under the bearing plate
c. apply a 1" layer of cement under the bearing plate
d. apply a 1" layer of caulking under the bearing plate - CORRECT ANSWER b. apply a
1" layer of grout under the bearing plate
Which drive sheave groove configuration requires the use of a double-wrapped
secondary sheave?
a. v-grooves
b. u-grooves
c. polyurethane groove inserts
d. undercut v-grooves - CORRECT ANSWER b. u-grooves
what devices would you use to prevent the machine bedplate from lifting on one end as
the elevator starts or stops? a. tie downs
b. kick angles
c. isolation pads
d. crosby clamps - CORRECT ANSWER a. tie downs
which of the following best describes blocking beams? a.
the beams bottom flange is set at floor level
b. the beams lies parallel to the machine beams
c. the beams lies perpendicular to the machine beams
d. the beams elevate the machine for maintenance purposes - CORRECT ANSWER c.
the beams lies perpendicular to the machine beams
Which is the best fire extinguisher to cover all types of fires in the machine room? a.
ABC
b. water
c. CO2
d. Sand - CORRECT ANSWER a. ABC
which of the following is correct for the machine room?
,a. the number color on the hoist machine must match the number color on the control
panel
b. piping and duct from other trades is acceptable is grounded
c. a light switch must be located on the jamb side of the access door
d. the machine room must not be lockable to allow access in an emergency -
CORRECT ANSWER c. a light switch must be located on the jamb side of the
access door
Which statement is correct about hoist machines, control panels and MG sets in the
machine room not in the view of the disconnect panels? a. the NEC requires a
disconnect in the lobby
b. the NEC requires a manually operated switch adjacent to the equipment
c. the disconnects must be installed in full view of the equipment
d. this is an acceptable means of installing the equipment - CORRECT ANSWER b. the
NEC requires a manually operated switch adjacent to the equipment
how much higher must the counterweight governor tripping speed be set above the car
governor?
a. no higher than 10%
b. no higher than 15%
c. no higher than 20%
d. no higher than 25% - CORRECT ANSWER a. no higher than 10%
The car governor tripping sped must not be set at less than what percent of the rated
car speed?
a. 105%
b. 110%
c. 115%
d. 120% - CORRECT ANSWER c. 115%
Which of the following statements is correct about electrical overspeed switches? a.
they are required on all traction elevators?
b. they are actuated simultaneously when the governor trips mechanically to prevent
elevator restart
c. they reset automatically when the car is taken off the safeties
d. they must trip at not more than 90% of mechanical tripping speed for cars that travel
above 150-500fpm - CORRECT ANSWER d. they must trip at not more than 90% of
mechanical tripping speed for cars that travel above 150-500fpm
Which of the following statements is correct about governor installations?
a. it must be installed to actuate the releasing carrier for overspeed condtions with the
car traveling upward.
b. the jaw side of the governor must be plumb to the releasing carrier on the car
, c. when piping electrical switches to the governor, use only rigid conduit
d. because of vibrations, never install a governor on the rails - CORRECT ANSWER b.
the jaw side of the governor must be plumb to the releasing carrier on the car
What type of governor jaw assembly is required with type B, flexible guide clamp style
safeties?
a. pull-through
b. flyball
c. low-speed centrifugal
d. instantaneous gripping - CORRECT ANSWER a. pull-through
Which of the following statements is correct about testing governors? a.
it must be tested annually with rated load in the up direction
b. the overspeed switches must be tested annually for proper settings
c. it must be tested every five years with rated load at rated car speed in the down
direction
d. only type B safeties must be tested every five tears at rated load and rated speed in
the down direction - CORRECT ANSWER c. it must be tested every five years with
rated load at rated car speed in the down direction
what are four categories of selectors?
a. relay, mechanical, motor driven and electronic
b. relay, pulley, digital, and hydraulic
c. relay, mechanical switch, exposed terminal and digital
d. electronic, optical, mechanical, and tachometer type - CORRECT ANSWER a. relay,
mechanical, motor driven and electronic
Which of the following is correct about the selector?
a. selects which car in a group will respond to a call
b. motor driven selectors must be rotated by a rope connected to the car
c. selector cabinet require a clear access of a least 2 inches around all electrical
components
d. it monitors the car position in the hoistway - CORRECT ANSWER d. it monitors the
car position in the hoistway
When are a counterweight safety and governor required? a.
if a frame-type counterweight is used
b. when the space below the hoistway is not secured from access
c. the rated car speed is over 200fpm
d. the roping method used on a machine is 2:1 - CORRECT ANSWER b. when the
space below the hoistway is not secured from access
what is the minimum clearance allowed under the machine beams in a secondary