Mechanics Exam:Questions and Correct Detailed Answers/ already Graded A+
* 1 gallon is how many cubic inches? - ans231
* A Force of 5000 lbs is applied to a plunger with an area of 25 sq inches. What is the system pressure? -
ans200 psi. (5000 lbs/ 25 sq inches = 200 psi
* A motor needs a sleeve bearing replaced. What type of bearing will you need? - ansFriction Bearing (420)
* ADA height for a new Hall Fixture? - ans42" to center of fixture
* How do you handle a coworker who shows up to work intoxicated? - ansSpeak to the MIC, Union BA or call
your Supervisor.
* If changes need to be made during construction, who do you inform? - ansMechanic In Charge
* If there is high screeching, what should you check? - ansSCR drive motor bushing
* In Bi-Parting doors, what gap is allowed before Gate switch is opened? - ans3/4" Max
* In what section of the NEC is Elevator, Escalator, Dumbwaiter and Moving Walks found? - ans620
* On a Ward-Leonard circuit, the brake is set but the motor is trying to slip through the brake. What circuit is
the issue? - ansSuicide circuit (425)
* SCRs are good for what? - ansThey are quieter and cause less vibration than an MG Set.
* Time constant question on test? - ans45 seconds
,* What amount of Crosby's do you use on 1/2" rope? - ans3
* What are the most common features of Load Weigh? - ansTo control the Generator field and express
operation.
* What do U grooves need? - ansDouble Wrap
* What do you hold a machine beam down with? - ansTie downs
* What is going on if you add power to a generator but motor doesn't gain more speed? - ansGenerator is
Saturated.
* What is Relief set at? - ans150%
* What is required on the Cartop by ASME? - ansInspection Station, Light, Duplex receptacle.
* What is the conversion formula when measuring Inch to MM? - ans25.4 Inch to MM (.03937)
2.54 Inch to CM (.3937)
* What is the conversion from Kilograms to Lbs? - ans1 Kilogram = 2.2 lbs
* What is the Max clearance between Door and Sill? - ans3/8". (1/4" - 3/8")
* What is the Max distance between Raceway supports? - ans15'
* What is the Max distance from Strain Bars? - ans100'
, * What is the Max length Motor- Generator leads can be to the controller without a raceway? - ans6'
* What is the minimum gap Sill - Sill? - ans1/2"
* What is the Overlap minimum on 2 and 3 speed doors? - ans5/8"
* What is the Silent Killer? - ansCounter weights
* What is the smallest wire allowed in a Traveling cable? - ans# 20 Gauge
* What is the strongest type of rope ? - ansSeale rope
* What's the Max over speed on a Moving Walk? - ans20%
* When are comp ropes (instead of comp chains) required? - ans700 FPM
* When are Oil Buffers required? - ansAbove 200FPM
* When cutting Laminated Panels, which direction should the finished side face? - ansFinished Face of the
material should face the cutting edge of the tool. (255). The blade has a tendency to burr the backside.
* Where is the Tension Sheave in a Moving Walk? - ansTail end
* You have an old DC motor and you are adding an SCR Drive. What do you do with the Interpoles? -
ansLeave the Interpoles alone. (When adding an SCR Drive to the generator, the Series Loop is removed, as
are the three resistors.
** "Vertical" platform stopping devices? - ans2 Switches. 15lb Max pressure.
* 1 gallon is how many cubic inches? - ans231
* A Force of 5000 lbs is applied to a plunger with an area of 25 sq inches. What is the system pressure? -
ans200 psi. (5000 lbs/ 25 sq inches = 200 psi
* A motor needs a sleeve bearing replaced. What type of bearing will you need? - ansFriction Bearing (420)
* ADA height for a new Hall Fixture? - ans42" to center of fixture
* How do you handle a coworker who shows up to work intoxicated? - ansSpeak to the MIC, Union BA or call
your Supervisor.
* If changes need to be made during construction, who do you inform? - ansMechanic In Charge
* If there is high screeching, what should you check? - ansSCR drive motor bushing
* In Bi-Parting doors, what gap is allowed before Gate switch is opened? - ans3/4" Max
* In what section of the NEC is Elevator, Escalator, Dumbwaiter and Moving Walks found? - ans620
* On a Ward-Leonard circuit, the brake is set but the motor is trying to slip through the brake. What circuit is
the issue? - ansSuicide circuit (425)
* SCRs are good for what? - ansThey are quieter and cause less vibration than an MG Set.
* Time constant question on test? - ans45 seconds
,* What amount of Crosby's do you use on 1/2" rope? - ans3
* What are the most common features of Load Weigh? - ansTo control the Generator field and express
operation.
* What do U grooves need? - ansDouble Wrap
* What do you hold a machine beam down with? - ansTie downs
* What is going on if you add power to a generator but motor doesn't gain more speed? - ansGenerator is
Saturated.
* What is Relief set at? - ans150%
* What is required on the Cartop by ASME? - ansInspection Station, Light, Duplex receptacle.
* What is the conversion formula when measuring Inch to MM? - ans25.4 Inch to MM (.03937)
2.54 Inch to CM (.3937)
* What is the conversion from Kilograms to Lbs? - ans1 Kilogram = 2.2 lbs
* What is the Max clearance between Door and Sill? - ans3/8". (1/4" - 3/8")
* What is the Max distance between Raceway supports? - ans15'
* What is the Max distance from Strain Bars? - ans100'
, * What is the Max length Motor- Generator leads can be to the controller without a raceway? - ans6'
* What is the minimum gap Sill - Sill? - ans1/2"
* What is the Overlap minimum on 2 and 3 speed doors? - ans5/8"
* What is the Silent Killer? - ansCounter weights
* What is the smallest wire allowed in a Traveling cable? - ans# 20 Gauge
* What is the strongest type of rope ? - ansSeale rope
* What's the Max over speed on a Moving Walk? - ans20%
* When are comp ropes (instead of comp chains) required? - ans700 FPM
* When are Oil Buffers required? - ansAbove 200FPM
* When cutting Laminated Panels, which direction should the finished side face? - ansFinished Face of the
material should face the cutting edge of the tool. (255). The blade has a tendency to burr the backside.
* Where is the Tension Sheave in a Moving Walk? - ansTail end
* You have an old DC motor and you are adding an SCR Drive. What do you do with the Interpoles? -
ansLeave the Interpoles alone. (When adding an SCR Drive to the generator, the Series Loop is removed, as
are the three resistors.
** "Vertical" platform stopping devices? - ans2 Switches. 15lb Max pressure.
