Exam Question and Answer (2026/2027) |
Final Review
• T or False: Because of the typically high operating heights, tower crane operation
is not affected by, and is therefore exempt from power line clearance regulations. -
✓✓ False
• T or F: Guylines are never used to secure a freestanding tower while it is being
assembled. -✓✓ False
• T or F: When assembling the crane, spring clips are used to secure the pendant
pins because of their ease and safety. -✓✓ False
• After erection, what must be done before putting a tower cranes in service? -✓✓
Load test the crane
• T off: Tower and mobile cranes are both load tested at 110% overload -✓✓ False
• When tower base bolts are torqued, the jib is rotated so the counterweight is
positioned in what position relating to the bolts being tightened? -✓✓
Counterweight over the bolts
• A tower crane fastened to the outside of a building should be secured a minimum
of -✓✓ Every four floors
• Foundations and structural supports must be designed by whom? -✓✓ Engineer
• According to OSHA, list 2 people who must be present while erecting a tower
crane? -✓✓ Operator and A/D Director
• What is used to adjust the jib for proper inclination and eliminate jib twist? -✓✓
Turnbuckles
• When erecting tower cranes, how many times should the bolts be used? -✓✓
Only once
, • What method is often used to level and secure a tower crane being erected inside
a building? -✓✓ Hardwood Wedges
• According to ASME, hammerhead tower cranes must be plumb to a tolerance of
at least? -✓✓ 1 inch in 10 ft.
• Prior to erecting a tower crane, a site plan shall be prepared by whom? -✓✓
Qualified Person
• According to ASME, Crane erection and dismantling shall be performed under
the supervision of? -✓✓ Designated person
• What is the first step taken before erecting a tower crane? -✓✓ Prepare a site plan
• T or F: In general, tower cranes are designed to have the same lifting capacities
regardless of the jib length and load radius. -✓✓ False
• T or F: A mono type of tower can be either fixed or slewing? -✓✓ True
• T or F: All tower cranes manufactured by a company will have a common
manufacturer's manual that is generic to all cranes made by that company. -✓✓
False
• T or F: A limit switch is a safety device that restricts movement of the crane and
prevents overload and damage. -✓✓ True
• T or F: Each crane requires only one limit switch. That switch will be on the
trolley hoist -✓✓ False
• T or F: All limit switches are of the mechanical type, including those on digital
control cranes. -✓✓ False
• T or F: Because of their lightweight, it is not necessary to include slings and
rigging hardware in the pre-lift load calculations. -✓✓ False
• T or F: A tower crane can be safely operated in wind speeds exceeding 30 MPH
if the load doesn't approach the crane's capacity. -✓✓ True