Module 9: Cranes, Derricks, Hoists,
Elevators and Converyors Questions
and Answers.
cranes and derricks installed on floating surfaces must have a ____ placed where it can be easily
seen by the proctors. - Answer Boom angel indicator
when is it acceptable to use a personnel platform to raise and lower workers - Answer Other
means of access would be more dangerous or impossible.
Which of the following is an example of conditions that may limit the load rating of a crane? -
Answer The crane is not on level ground
The ____ oversees and directs all crane assembly and disassembly operations. - Answer
Assembly/disassembly director
Which of the following could cause a crane to topple even when lifting loads within its
maximum range? - Answer Inadequate ground conditions
____ are the wheels on a crane with open grooves that ropes or cables fit around. - Answer
Sheaves.
_____ refers to the point in an object around which its weight is evenly distributed. - Answer
Center of gravity
When must a signal person be used? - Answer The crane operators view is obstructed
A ____ provides something to hold onto should a personnel platform shift unexpectedly. -
Answer Grab-rail
Elevators and Converyors Questions
and Answers.
cranes and derricks installed on floating surfaces must have a ____ placed where it can be easily
seen by the proctors. - Answer Boom angel indicator
when is it acceptable to use a personnel platform to raise and lower workers - Answer Other
means of access would be more dangerous or impossible.
Which of the following is an example of conditions that may limit the load rating of a crane? -
Answer The crane is not on level ground
The ____ oversees and directs all crane assembly and disassembly operations. - Answer
Assembly/disassembly director
Which of the following could cause a crane to topple even when lifting loads within its
maximum range? - Answer Inadequate ground conditions
____ are the wheels on a crane with open grooves that ropes or cables fit around. - Answer
Sheaves.
_____ refers to the point in an object around which its weight is evenly distributed. - Answer
Center of gravity
When must a signal person be used? - Answer The crane operators view is obstructed
A ____ provides something to hold onto should a personnel platform shift unexpectedly. -
Answer Grab-rail
