10 exam-style questions with answers and explanations, straight from our 1,035-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The ABL exam has 50 questions and runs 1 hour 30 minutes.
These 10 free ABL questions are organized by exam domain, so you can see how each part of the Articulating Boom Loader blueprint is tested. Reveal the answer and explanation under each question.
An articulating crane will operate near an overhead power line carrying 40 kV. Assuming the line stays energized, what is the minimum clearance that must be maintained between the line and any part of the crane or load?
Correct answer: B - 10 feet
Before setting up beside an overhead power line, the crew cannot immediately confirm with the utility whether the line is energized. How should the operator treat the line?
Correct answer: D - As energized until the utility owner confirms it is de-energized and it is visibly grounded
A stabilizer must be positioned over ground that was excavated and backfilled last week. What is the operator's BEST course of action?
Correct answer: C - Confirm the surface can support the imposed load and use suitable cribbing before setting up
According to load chart requirements, an articulating crane must be positioned in what condition before rated loads are lifted?
Correct answer: A - Level, on properly set stabilizers
When handling a bundle of material on the permanently attached fork, why is it important to center the load on the fork before lifting?
Correct answer: D - Centering keeps the load balanced and reduces the chance of it shifting or tipping
Which of the following actions increases the dynamic loading placed on an articulating crane?
Correct answer: B - Suddenly stopping a load that is swinging
An operator considers using the boom to drag a load sideways across the ground into position. This practice is:
Correct answer: C - Prohibited, because side loading can overstress and damage the boom
What is the primary function of an overload protection (OLP) system on an articulating crane?
Correct answer: C - To limit or stop crane function as the load approaches or exceeds rated capacity
Under normal operating conditions, what must an operator do before leaving the crane's controls?
Correct answer: A - Land the load and secure the crane
During a lift directed by a designated signalperson, another worker on site gives an emergency stop signal. The operator should:
Correct answer: D - Obey the stop signal, because a stop signal from anyone must be followed
The ABL exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,025 more ABL questions with explanations.
Continue in the free practice test →
View plans