Elevator Mechanic Study 278 2025
Questions and Answers
Its a box with shaded triangle in lower right hand corner. - ANSWER✔✔-Which relay
do you need to Order
710 Pg, 7
RPM = 60 ∙ ƒ ÷ P÷2 =
Step 1. 60 x Frequency (Hz.) =
Step 2. Poles ÷ 2 =
Take answer 1 and ÷ by answer 2 = - ANSWER✔✔-Know the formula for RPM
435 Pg. 5
If you are referring to a megohm meter, it is a test of the insulation properties of such
things as electric wiring, motor windings and high power antenna mounts.
COPYRIGHT © 2025 ALL RIGHTS RESERVED
,We use a "megger" or "meg out" electrical wiring and equipment to see if it is shorted to
ground or the frame in any way.
The megger uses much higher voltages to check resistance than a normal Volt-ohm
meter.
Minimum resistance is 1 Meg Ohm - ANSWER✔✔-Know what a Megger is and what it
does
636 Pg. 13
(1) A parallel connection. (2) A resistive element placed across the terminals of an
armature to bypass a portion of the current. (3) A flexible electrical conductor designed
to conduct current around the mechanical joint between two conductors. (4) The
resistive element (Usually of very low resistance) used in parallel with a DC ammeter
movement to bypass a calibrated portion of the total circuit current. - ANSWER✔✔-
Shunt Overloads
425 All Pages
Bad Ground - ANSWER✔✔-You are using a Temp Run Box and you get shocked! Why!
COPYRIGHT © 2025 ALL RIGHTS RESERVED
,520 Pg. 4
The bridle hitch can consist of two,three, or four single hitches (fig. 3-22), used together
to form a bridle hitch for hoisting an object
A sling with two legs used to lift a 1,000 pound object will have 500 pounds of the load
on each leg when the sling angle is 90 degrees. The load stress on each leg increases as
the angle decreases; and if the sling angle was 30 degrees lifting the same 1,000 pound
object, the load will be 1,000 pounds on each leg. Try to keep all sling angles greater
than 45 degrees; sling angles approaching 30 degrees are considered extremely
hazardous and must be avoided at all cost. - ANSWER✔✔-Bridal Hitch
128 Pg 17
Scaffolding should be tied to the structure using
#9 wire or tie-in devices. The first vertical tie
should be at the maximum height of 4 times the
narrowest base dimension. Additional ties are not
to exceed 26' vertically. Maximum horizontal
distance between ties is not to exceed 30'. - ANSWER✔✔-Scaffolding, You have 32' of
rise, you are using 3x5 scaffolding. Where will the tie off points be ?
COPYRIGHT © 2025 ALL RIGHTS RESERVED
, 140 PG. 287-288
Counterweights (Typically) are hung to counter balance the weight of the car PLUS 40%
of Capacity Load. - ANSWER✔✔-How much should Counterweight way?
240 Pg. 14
Note: We do not use wire smaller than #20 in travelling cables and #24 outside
travelers.
Largest wires are feeders to Hoist /Pump motor
We always have 10 % spares
10% of 52 = 5.2
On a calculator Multiply the percent 10 by the number you have and ÷ by 100
10 X 52 ÷ 100 = 5.2 - ANSWER✔✔-Pulling Spare Wires (Example) 10% of 52 Wires
515 Pg.26
The correct lube must be used on chains. - ANSWER✔✔-The freight door motor is
spinning but the door wont move, Why?
COPYRIGHT © 2025 ALL RIGHTS RESERVED
Questions and Answers
Its a box with shaded triangle in lower right hand corner. - ANSWER✔✔-Which relay
do you need to Order
710 Pg, 7
RPM = 60 ∙ ƒ ÷ P÷2 =
Step 1. 60 x Frequency (Hz.) =
Step 2. Poles ÷ 2 =
Take answer 1 and ÷ by answer 2 = - ANSWER✔✔-Know the formula for RPM
435 Pg. 5
If you are referring to a megohm meter, it is a test of the insulation properties of such
things as electric wiring, motor windings and high power antenna mounts.
COPYRIGHT © 2025 ALL RIGHTS RESERVED
,We use a "megger" or "meg out" electrical wiring and equipment to see if it is shorted to
ground or the frame in any way.
The megger uses much higher voltages to check resistance than a normal Volt-ohm
meter.
Minimum resistance is 1 Meg Ohm - ANSWER✔✔-Know what a Megger is and what it
does
636 Pg. 13
(1) A parallel connection. (2) A resistive element placed across the terminals of an
armature to bypass a portion of the current. (3) A flexible electrical conductor designed
to conduct current around the mechanical joint between two conductors. (4) The
resistive element (Usually of very low resistance) used in parallel with a DC ammeter
movement to bypass a calibrated portion of the total circuit current. - ANSWER✔✔-
Shunt Overloads
425 All Pages
Bad Ground - ANSWER✔✔-You are using a Temp Run Box and you get shocked! Why!
COPYRIGHT © 2025 ALL RIGHTS RESERVED
,520 Pg. 4
The bridle hitch can consist of two,three, or four single hitches (fig. 3-22), used together
to form a bridle hitch for hoisting an object
A sling with two legs used to lift a 1,000 pound object will have 500 pounds of the load
on each leg when the sling angle is 90 degrees. The load stress on each leg increases as
the angle decreases; and if the sling angle was 30 degrees lifting the same 1,000 pound
object, the load will be 1,000 pounds on each leg. Try to keep all sling angles greater
than 45 degrees; sling angles approaching 30 degrees are considered extremely
hazardous and must be avoided at all cost. - ANSWER✔✔-Bridal Hitch
128 Pg 17
Scaffolding should be tied to the structure using
#9 wire or tie-in devices. The first vertical tie
should be at the maximum height of 4 times the
narrowest base dimension. Additional ties are not
to exceed 26' vertically. Maximum horizontal
distance between ties is not to exceed 30'. - ANSWER✔✔-Scaffolding, You have 32' of
rise, you are using 3x5 scaffolding. Where will the tie off points be ?
COPYRIGHT © 2025 ALL RIGHTS RESERVED
, 140 PG. 287-288
Counterweights (Typically) are hung to counter balance the weight of the car PLUS 40%
of Capacity Load. - ANSWER✔✔-How much should Counterweight way?
240 Pg. 14
Note: We do not use wire smaller than #20 in travelling cables and #24 outside
travelers.
Largest wires are feeders to Hoist /Pump motor
We always have 10 % spares
10% of 52 = 5.2
On a calculator Multiply the percent 10 by the number you have and ÷ by 100
10 X 52 ÷ 100 = 5.2 - ANSWER✔✔-Pulling Spare Wires (Example) 10% of 52 Wires
515 Pg.26
The correct lube must be used on chains. - ANSWER✔✔-The freight door motor is
spinning but the door wont move, Why?
COPYRIGHT © 2025 ALL RIGHTS RESERVED
