Advanced Rigger Exam Questions and Complete Solutions Graded A+.

  Leverage is defined as? - Answer: the power applied to a lever to cause a load to move A cranes stability is affected by all of the following except: - Answer: centered lift The quadrant that is located between the rear outriggers or crawlers in the rearward direction of travel is known as: - Answer: over-the-rear The operational quadrant between the left or right side outriggers is: - Answer: over the side A loads center of gravity in relation to the tipping axis is affected by all of the following except: - Answer: raising or lowering the load Backward stability of a crane is affected by: - Answer: high boom angles and inclines what dynamic occurs when a load is hoisted from a point other than directly over the load? - Answer: pendulum effect the sudden release of a load that causes a rapid change in effective load weight is called? - Answer: impact loading doubling the depth of a cribbing beam increases the WLL by a factor of? - Answer: four a sling angle is considered hazardous if it is less than_______degrees from horizontal? - Answer: 45 the formula for determining the wll of a bridle hitch is? - Answer: WLL=(W)(H÷L)(2) spreader beans are tested at what percent of the rated capacity? - Answer: 125 adjustable lifting beams are limited to loads of less than a hundred times - Answer: false bundles of rebar should be lifted by? - Answer: wire rope slings when a bundle of rebar is being lifted with two slings in a choker hitch, the sling eyes should be threaded in the opposite direction to improve load stability - Answer: false acceleration - Answer: the rate of change of velocity with respect to time Anchorage - Answer: a place for properly securing a lanyard boom point elevation - Answer: distance from the ground to the center of the boom Point sheaves Bridal sling - Answer: a multi leg, wire rope sling center of gravity - Answer: the point at which an object is perpendicular to and balance in relation to the Earth's gravitational field engineering - Answer: practical application of the knowledge of physics, leverage, and gravity as they relate to lifting operations equalizer - Answer: any of the various devices or applications for equalizing stresses, strains, and pressures guardrail - Answer: a system of protective railings at waist height, mid-height, and toe board that provides an added measure of safety around platforms and catwalks interpolation - Answer: method of estimating or finding an intermediate value or term in a sequence or between two known values lanyards - Answer: any small cords or ropes used for securing or suspending lever - Answer: a device that pivots on a fulcrum to move a load Leverage - Answer: the power applied to a lever to cause a load to move lift plan - Answer: a written plan that outlines all wait, rigging, and configuration considerations for a lift pendulum effect - Answer: a condition that occurs when a load is hoisted from a point other than directly under the load line, thus causing the load and hoist line to swing like a pendulum until it Finds Its center of gravity radius - Answer: the horizontal distance from a projection of the axis of rotation to the supporting surface before loading to the center of the vertical hoist line or tackle with the load applied reinforcing (rebar) - Answer: bars generally made of steel that are placed in concrete forms before the concrete is poured in order to increase the strength of the concrete tipping axis - Answer: the fulcrum point on which a lever is balanced lift plan - Answer: document that outlines all wait, rigging, and configuration requirements for a lift is a? steel erection or multiple crane lifts - Answer: lift plans are mandatory for blank load weight - Answer: the number of shackles required is a Criterion that falls under the category of? crane placement - Answer: foundation and location of electrical hazards are examples of______ criteria wire rope - Answer: the size and weight per foot of the ______ need to be considered as part of a lift plan counterweight - Answer: over the front, over the rear, and over the side are ______ considerations for Crane placement a lift plan - Answer: critical lifts always require? weight of crane components below lifting point - Answer: when lifting from the main boom of a lattice Crane, and erected Jib, whip line length below the jib, and the length of the line from the lift point to load block are calculations involving the?