ACTUAL Exam Questions and CORRECT
Answers
what is important for the operator to do when extwnding the outriggers - CORRECT
ANSWER - make visual contact or post a signalperson
what is the minimum swing clearance required between the crane counterweight and any
obstacle - CORRECT ANSWER - 2ft of 360 degree rotation
what function do axle lockouts (osicillation locks) perform on a rough terrain crane ? -
CORRECT ANSWER - locks the rear axle and prevents oscillation
what should be primary cocern of an operator when setting up a crane on construction site with
newly constructerd buildings - CORRECT ANSWER - site compaction
what is the the purpose of placing mats or cribbing under outriggers floats - CORRECT
ANSWER - to distribute the force when on soft ground
what can happen as a result of the vibrations caused a working crane - CORRECT
ANSWER - underground utilities may collapse
what should be avoided when setting up crane for work - CORRECT ANSWER - any area
near a trench
what is the purpose of placing the timber blocking under the ends of the crawler tracks -
CORRECT ANSWER - make the crane more stable
when may blocking be placed under the outriggers beams - CORRECT ANSWER -
blocking is never to be placed under beams
, when lifting with crawler crane how can groudn bearing pressure be reduced - CORRECT
ANSWER - lift over the side
when working aroud energized high voltage power lines an operator should never - CORRECT
ANSWER - allow anyone standing on the ground to touch the crane
when a law requires a crane to be equipped with cage-type boom guards insulating limks and or
proximity warning devices - CORRECT ANSWER - the crane may handle loadsunder
power lines without additional personnel aid
where shall signs be installed warning that electrocution or serious bodily injury may occur
unless minimum clerance are maintained between the crane or the load being hauled and
energized power lines - CORRECT ANSWER - at the operator station and outside the
crane
which of the foolowing should be considered first during site preparation and planning -
CORRECT ANSWER - satisfactory access roads
when should all potential site hazards be discovered - CORRECT ANSWER - during
planning and site inspection
a crane's operating location must be wll clear of - CORRECT ANSWER - trenches and
burried utilities
according to OSHA, which is the minimum clearnace required for a crane in transit when passing
under 50kv power lines - CORRECT ANSWER - 6 feet
what conditions may required an operator to increasee clearance between the crane and energized
power lines while in transit with no load - CORRECT ANSWER - environmental
conditions