Exam (elaborations)
Elevator mechanics review Questions and Answers.
- Course
- Elevator Mechanic
- Institution
- Liberty University
Elevator mechanics review Questions and Answers.
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Elevator mechanics review Questionsand Answers
Car .running .up .keep .stopping .why? .- .(correct .answer) .-Contact .is .not .deenergizing .in .push .button
Third-floor .bulbs .burn .out .why? .- .(correct .answer) .-Shorted .resistor
Car .will .not .travel .to .second .floor .without .a .third-
floor .me .a .call .and .will .not .go .down .from .three .without .a .second-floor .hall, .what's .the .problem? .- .
(correct .answer) .-2Fl .4/6
Why .won't .motor .start? .- .(correct .answer) .-MOL1 .95/96
Car .doors .closed .and .won't .run .what .do .you .check? .- .(correct .answer) .-
Check .for .voltage .at .four .and .five
Bad .Transistor
Top .barricade .can .be .replaced .with? .- .(correct .answer) .-1/4" .Cable
There .is .voltage .at .the .switch .but .none .at .point .a .what's .wrong? .- .(correct .answer) .-Either .R1 .or .R2
.open
The .door .close .limit .switch .is .not .working .do .you .have .power .from .35 .to .term .eight. .No .power .fro
m .1 .to .52 .why? .- .(correct .answer) .-Door .limit .switch .malfunction
Car .running .normally .but .the .buzzer .will .not .shut .off .why? .- .(correct .answer) .-EHP .2/3 .shorted
Relay .STR .has .voltage. .TRU .has .voltage, .RU .has .no .voltage, .why? .- .(correct .answer) .-TRU .9/8
Second .floor .PI .illuminates .then .quickly .extinguishes .why? .- .(correct .answer) .-X1 .4/6
On .a .machine, .what .is .drilled .out .first? .- .(correct .answer) .-Secondary .sheave
Dumb .waiter .takes .off .before .loading .why? .- .(correct .answer) .-Non .interference
Car .levels .in .3 .inches .high .in .down .direction .why? .- .(correct .answer) .-Counterweight
, In .bi-parting .doors .what .gap .is .allowed .before .gate .switch .is .open? .- .(correct .answer) .-3/4"
Pressure .switch .is .wired .in .what .direction .- .(correct .answer) .-Down .directional
What .is .the .tripping .speed .of .counterweight .governor? .- .(correct .answer) .-
No .more .than .10% .higher
There .is .excessive .sparking .on .generator .why? .- .(correct .answer) .-High .Micha
How .does .interpoles .affect .the .Armature? .- .(correct .answer) .-Reaction
What .is .the .maximum .door .closing .force? .- .(correct .answer) .-30 .lbs .and .7 .lbs .kinetic
What .do .you .do .before .replacing .a .relay .on .a .controller? .- .(correct .answer) .-LOTO, .Test, .and .Verify
When .are .spring .buffers .used? .- .(correct .answer) .-Less .than .200fpm
What .are .SCR's .good .for? .- .(correct .answer) .-
They .are .quieter .and .make .less .vibration .then .motor .generator .set
You .have .a .200 .ohm .resistor .at .200 .Watts .what .do .you .replace .it .with? .- .(correct .answer) .-
75 .ohm .200 .watt .adjustable .resistor
Pump .overload .keeps .tripping. .How .do .you .measure .amperage? .- .(correct .answer) .-
Clamp .on .meter .separately .each .wire
Customer .complains .about .a .third .floor .PI .bulb .burned .out, .why? .- .(correct .answer) .-
Shorted .resistor
There .are .three .elevators, .12 .floors, .customer .does .not .want .PI's .on .second, .seventh, .and .eighth .flo
or. .How .many .total .PI .'s? .- .(correct .answer) .-27 .PI's
10k .ohm .resistor .with .500mF. .How .long .will .it .take .to .charge .capacitor? .- .(correct .answer) .-5 .sec
What .do .you .do .before .running .a .Hydro .after .car .is .built? .- .(correct .answer) .-
Check .piston .for .debris .and .make .sure .head .is .tight
How .to .tell .which .side .is .right .or .left .hand .doors? .- .(correct .answer) .-Inside .looking .out
If .you .get .a .complaint .that .all .floors .make .noise, .what .should .you .check? .- .(correct .answer) .-
Car .doors
What .is .the .issue .if .you .add .power .to .a .generator .but .the .motor .doesn't .gain .any .more .speed? .- .
(correct .answer) .-Generator .is .saturated
If .a .handrail .switch .is .tripped .and .you .reset .it .but .the .escalator .immediately .turns .back .on, .what's .t
he .problem? .- .(correct .answer) .-Start .switch .is .stuck .in .the .on .position
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