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What is the required amount of retainer clips for wedge shackles and what is
the spacing?
Minimum 2 clips. 1st at a maximum 4x the diameter of the
rope 2nd at a maximum 8x the diameter above the 1st
clip
A 300ohm resistor burns out, but you don't have another one. How can you make
one?
2 600ohm resistors in parallel is 300ohms. Resistance is half of highest resistor
in parallel circuit.
3 225ohm resistors in parallel is 75ohms.
When cutting laminated panels, which direction should the finish side face?
Finish side facing the cutting edge of the tool. Blade will burr the backside
How do you cut a finished floor?
Cutting blade away from finished side
A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what
is the output voltage?
320vac
3 phase full wave = 1.33x output voltage
,A car is loaded with 125% and sinks, why?
Slipping through the break
If you find a broken or missing barricade what should you do?
Write up a formal inspection request
What are the consequences of misaligned joints on a Rack and Pinion?
Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the
tube
A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total
capacity?
9 x 4 x 13.9= 500lbs Max capacity
You must enter a pit with a toxic atmosphere, how do you proceed?
Following proper OSHA procedure with proper training and PPE
When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the
new ratings?
300fpm 4,000lbs capacity
Half the speed, Double the capacity
A vertical platform lift has a clearance of 1 inch. How much will it have to move to
meet code?
Move in ¼ inch. Code is ¾ inch
,A car weighs 2500lbs with a capacity of 2500lbs, the CWT is weighted at 40%,
how much is the motor lifting when the car is fully loaded?
2500(car) + 1000(40%) 3500. 5000-3500=1500lbs lifted by the machine
How must Oxygen and Acetylene tanks be stored?
Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between them
What is code for sill to sill distance?
Minimum ½ inch Maximum 1 ½ inches
When drilling a jack hole in sandy conditions what type of drill rig is required?
Rotary or Auger bit. Rotary=Soft Percussion=Rocky Combo=Solid
A customer does not want an escape hatch on a residential elevator, under
what condition is this legal?
Manual operation must be provided
Your helper wired the down direction and final limit switches, now the car will
only travel up, what is the issue?
The down direction limit was wired incorrectly.
, What are the effects of one rope sitting deeper in the sheave groove?
The rope wears out and breaks faster
There is a noise coming from a freight door. The sheave is moving, but the chain is
not. What is the problem?
Oil on the drive chain
What is the effect when you change a sling angle from 60 degrees to 30 degrees?
More tension, less capacity. Any angle 30 or less is dangerous
How many points of a contact must be maintained on a ladder? How far above
landing must it extend? What is proper Ratio? What steps don't we use?
3 points of contact. 3 foot above. 4:1. Top 2 steps
You open a dumbwaiter access panel and it still runs, what is the problem?
Pit access switch is not working properly
You perform a static load test with the pit valve closed. The car sinks 6" in 15
minutes. What is the problem?
Cylinder leak
Where should you aim a fire extinguisher to put out a fire?
At the base of the fire