QUESTIONS AND ANSWERS GUARANTEED
TO PASS
⩥ By order of strength which is correct Answer: Basket, Vertical,
Choker
⩥ Primary purpose for a roster sheave or auxiliary boom point sheave is
to: Answer: Separate the hoist line
⩥ When the number of layers of rope on a drum increase the : Answer:
Allowable line pull decreases
⩥ What is the minimum allowable distance from the crane and power
lines under 50kV? Answer: 10'
⩥ Eccentric main boom tip reeving casues Answer: twisting of the boom
⩥ How many randomly broken wires must there be to remove a running
wire rope from service? Answer: 6
⩥ When working near power lines when is a signal person required?
Answer: When crane moves within a booms length of power lines
, ⩥ When operating truck cranes what is the most unstable allowable
quadrant of operation? Answer: Side
⩥ Tipping capacities of locomotive cranes are based on what % of
tipping? Answer: 85%
⩥ Should the load be applied when determining the proper boom angle?
Answer: YES
⩥ What type of rope is recommended for a tagline around powerlines
Answer: Polypropylene
⩥ what does two beeps of the horn indicate to people in the area
Answer: forward
⩥ Load radius is the distance from the center of gravity of the suspended
load to the: Answer: Center of rotation
⩥ What is the purpose of using a boom extension? Answer: Increase
height
⩥ What do a jib and boom ext. have in common Answer: Increase height