An equalizer beam is used during a dual-crane lift to _____.
a. move a load’s CG to its physical center
b. make the loads equal on each crane
c. move the load’s CG to half-way between each crane’s hoist line
d. make the load on each crane proportional to its capacity
d. make the load on each crane proportional to its capacity
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Which of the following systems will require de-powering the high voltage (HV) system during service?
A) Tire rotation B) Oil change C) Electric AC compressor replacement D) Air filter replacement
The most common solar thermal collectors are flat plate and evacuated tube. A third, less common type, ____ concentrating, uses U shaped troughs to concentrate sunlight on a tube that is placed on the focal line of the trough.
A. anabolic B. parabolic C. metabolic D. hydrobolic