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Elevator Mechanic Exam 2024 Questions and Answers (Verified Answers by Expert).
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Elevator Mechanic Exam 2024 Questions andAnswers (Verified Answers by Expert)
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. .- .
(correct .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 .= .- .(correct .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 .ele
ctric .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 .o
r .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 .- .(correct .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 .curren
t. .
(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. .- .(correct .answer) .-
Shunt .Overloads
425 .All .Pages
Bad .Ground .- .(correct .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 .le
g .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 .po
unds .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. .- .(correct .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'. .- .(correct .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. .- .
(correct .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 .- .(correct .answer) .-Pulling .Spare .Wires .(Example) .10% .of .52 .Wires
515 .Pg.26
The .correct .lube .must .be .used .on .chains. .- .(correct .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 .
840 .Pg .2
Dumbwaiters:
Platform .limited .to .9 .Sq/Ft
Inside .height .is .limited .to .no .more .than .4 .Feet
Capacity .is .limited .to .500Lbs
No .Riders .- .(correct .answer) .-Read .Lula .and .Dumb .waiters
545 .Pg .1
You .never .get .on .top .and .you .work .only .partially .in .with .the .main .line .OFF .- .(correct .answer) .-
If .you .get .on .top .of .Dumbwaiter .what .must .be .done?
545 .Pg .14
Notes:(Pi) .π .is .3.1416 .and .231 .Cubic .inches .to .the .Gallon
Area:
Remember .to .÷ .6" .÷ .2 .= .3 .to .get .Radius
Area .= .π∙ .r²
Area .= .3.1416 .x .3 .x .3 .= .28.27 .inches .or .3.146 .x .9 .= .28.27
Volume
Multiple .are .times .height .to .solve .for .Volume
V .= .A∙H
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