EICA Mobile Crane & Digger Derrick
EXAM QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025) If not overloaded, the ground bearing pressure of a single
outrigger pad can approach a weight equal to: - Correct
Answers ✅85% of the weight of the crane and 100% of the suspended load If you move a crawler crane from soft ground to harder ground, ground bearing pressure will - Correct Answers ✅increase On a crawler crane, ground bearing pressure is greatest when hoisting where? - Correct Answers ✅over the corner If an outrigger pad has 45,000 pounds applied to it and the pad measures 2ft x 2ft how many psi is it applying to the ground? - Correct Answers ✅78 PSI How much area would be required for 45,000 pounds to create only 20 PSI? - Correct Answers ✅2,250 square inches Why use mats or cribbing? - Correct Answers ✅To reduce ground bearing pressure 1 / 4
EICA Mobile Crane & Digger Derrick
EXAM QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025) What is the purpose of placing blocking or pads under the outrigger floats? - Correct Answers ✅Distribute the force over a larger area While swinging a heavy load with a crane set up on outriggers and the operator swings over one of the outriggers, that outrigger must be able to support - Correct Answers ✅85% of the weight of the crane and 100% of the weight of the load What is the first thing an operator should do before traveling under a low pipe rack or obstruction? - Correct Answers ✅post a signalperson to check clearances According to OSHA, when traveling under an energized power line, what is the minimum distance for a line with over 750kv? - Correct Answers ✅20ft When a crane is in transit and you are required to pass under 50kV power lines, what is OSHA's minimum required clearance? - Correct Answers ✅6 ft (Table T) If setting up the crane by a ditch or an excavation, you should stay at least what distance from the edge? - Correct Answers ✅1 ½ times the depth of the excavation 2 / 4
EICA Mobile Crane & Digger Derrick
EXAM QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025) When working at ground floor level near a cellar wall, the crane's outrigger pads or tracks should be placed - Correct Answers ✅at least as far back as the depth of the wall below ground According to OSHA who is responsible for ensuring proper ground conditions when setting up a mobile crane? - Correct Answers ✅The controlling entity What is not a good location for crane set up? - Correct Answers ✅Above utilities What is the best procedure to follow when underground utilities may be present? - Correct Answers ✅Contact local utility company While performing a shift inspection on a crane and there is water accumulation around the outrigger, what must be done? - Correct Answers ✅Drained While operating a boom truck near a reinforced retaining wall, it is recommended to stay back - Correct Answers ✅A distance equal to the depth 3 / 4
EICA Mobile Crane & Digger Derrick
EXAM QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025) What would be a concern when setting up a crane over a sewer or water main? - Correct Answers ✅Weight and vibration from the machine and load When setting up a crane in an area that has public access,
you should barricade: - Correct Answers ✅the jobsite
When setting up a crane, what must be barricaded to protect workers? - Correct Answers ✅The hazardous areas created by the rotating superstructure According to OSHA, what area must be barricaded to prevent employees from entering - Correct Answers ✅accessible areas within the swing radius of the rear of the rotating superstructure of the crane The best way to keep people from being injured from the counterweight of the crane is to - Correct Answers ✅Fence or barricade the swing area of the crane When operating a crane in a tight space, what would be the recommended minimum clearance for the rear swing of the crane? - Correct Answers ✅2 ft
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