And Correct Answers
The total weight of your elevator (force) is 8100 lbs. and its plunger area is 50 square
inches. What is the system pressure?
162 psi
Refer to the NEIEP Moving Walk Final Layout. What is the correct wellway-to-wellway
distance?
134' 11"
Electrolysis is caused by which of the following?
Stray current corrosion and Galvanic corrosion BOTH ARE CORRECT
When using wire rope, the diameter of the sheaves must be how many times the
diameter of the suspension ropes?
30
Wye-Delta starting is used for which of the following?
Reduced current starting
, You need the area of the plunger to calculate the pressure of the hydraulic system.
Your plunger is 8 inches in diameter. What is it's area?
50.27 square inches
Which of the following provides mechanical interlocking of contactors?
Interlock contacts
As the certified welder on the job you must weld two cylinder pieces. How must you
join the two pieces?
Tack welds then a fill bead
Once a plunger joint has been completed, what steps should be followed to prevent
damage to the packing?
Sand with emery cloth
Under which of the following conditions will the buzzer (BZT) sound?
When the handrail speed is 15% below step speed.