ELEVATOR MECHANIC EXAM WITH GUARANTEED ACCURATE ANSWERS |VERIFIED
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Course
ELEVATOR MECHANIC
Institution
ELEVATOR MECHANIC
A Latching relay: Used for call registration,direction selection or as selector relays
Two types are: Set/Rest are electrical and Mechanical Latching relays
Need to know latching relay symbol, Its a box with shaded triangle in lower right hand corner. - ACCURATE ANSWERWhich relay do you need to ...
ELEVATOR MECHANIC EXAM
ELEVATOR MECHANIC EXAM WITH GUARANTEED ACCURATE ANSWERS |VERIFIED
A Latching relay: Used for call registration,direction selection or as selector relays
Two types are: Set/Rest are electrical and Mechanical Latching relays
Need to know latching relay symbol, Its a box with shaded triangle in lower right
hand corner. - ACCURATE 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 = - ACCURATE 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.
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 - ACCURATE 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. -
ACCURATE ANSWER✅✅Shunt Overloads
425 All Pages
Bad Ground - ACCURATE ANSWER✅✅You are using a Temp Run Box and
you get shocked! Why!
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. - ACCURATE
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'. - ACCURATE
ANSWER✅✅Scaffolding, You have 32' of rise, you are using 3x5 scaffolding.
Where will the tie off points be ?
140 PG. 287-288
Counterweights (Typically) are hung to counter balance the weight of the car
PLUS 40% of Capacity Load. - ACCURATE 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 - ACCURATE ANSWER✅✅Pulling Spare Wires
(Example) 10% of 52 Wires
515 Pg.26
The correct lube must be used on chains. - ACCURATE ANSWER✅✅The
freight door motor is spinning but the door wont move, Why?
535 Pg. 9
Lula: Limited use/Limited Access (Example Wheelchair Lifts)
Max Rise 25'
Max Speed 30 Ft/Min
Max Capacity 1400 Lbs.
Max Platform Area 18 Sq/Ft.
Residential Elevator:
Max Rise 50 '
Max Speed 40 Ft/min
Max Capacity 940 Lbs.
Max Platform Area 19 Sq/Ft
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