If something like this has ever happened to you: When the hoisted load is lowered, the bottom block drifts when you let go of the button on the pushbutton control. what could be the cause?
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The following practice questions are representative of a level-1 mobile crane theory exam. These will give you a good idea of how the questions are worded and structured.
What does the hand signal indicate in the figure below?
What is the radio protocol between a mobile piece of equipment and a tower crane sharing the same workplace?
What is the equivalent of 10,030 pounds in kilograms?
These sample questions are intended to convey something of the style and content of the National Operator Certification Program examination developed and administered by the National Commission for the Certification of Crane Operators.
They are not actual test questions, nor do they attempt to address all of the areas of knowledge tested on the CCO certification examination. Response to these questions is not necessarily an indication of performance on the CCO examinations.
What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his thumb up?
The load line of the crane you’re operating comes into contact with an energized power line. There’s no sign of any other danger, such as fire. In such a situation, you should:
Unless the manufacturer states otherwise, the net capacity of a crane on main boom is the capacity listed in the load chart:
Unless the operator takes account of boom deflection, when lifted off the ground, a properly rigged load may:
While there are other companies seeking to certify crane operators, only one organization, the National Commission for the Certification of Crane Operators (NCCCO), provides CCO certification.
Tips for Passing the NCCCO Exams
Take a preparatory class. Training is the key to passing. You may think you know everything about cranes, but how well do you know OSHA and ANSI/ASME rules, regulations and industry best practices? A preparatory class builds confidence so you won’t be intimidated by the test.
Read the Candidate Handbook. The manuals tell you everything you need to know about the NCCCO exams, from start to finish. Focus on the outline of the written exams, the outline is like the “blueprint” for the exams.
Forget how you do it daily. You may be doing it safely, but are you following the rules, manufacturer recommendations, and industry best practices? Come to class with an open mind. In fact, you may learn something you didn’t know before.
Exams require experience. The Candidate Handbook states: “CCO certification exams are designed for operators who are trained and currently working in crane operations.” If you are inexperienced, you will need extensive training to get to that level. You can’t get lucky on this test.
Study the load tables. One of the most important parts of this test is being able to solve a load graph problem. If you take a CCO Prep training class, you will be provided with a sample problems and loading diagrams.