A tackle is “two blocked” when the blocks are __________.?
A) equally sharing the load B) jammed together C) as far apart as possible D) rove to the highest mechanical advantage E)NULL
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Which type of ice is the most difficult to combat and presents the greatest hazard to shipping on the Great Lakes during the winter months?
A) Icebergs B) Fast ice C) Slow ice D) Pack slush ice E)NULL
When relieving the helm, the new helmsman will find it helpful to know the __________.?
A) deviation on that heading B) variation in the area C) leeway D) amount of helm carried for a steady course E)NULL
For operations in pack ice, a vessel should __________.?
A) be on an even keel B) be trimmed slightly by the head C) have a drag of not more than 2 to 3 feet D) be ballasted so the forefoot is near the surface E)NULL
Compared to manila line, size for size, nylon line __________.?
A) has less strength than manila line B) has more strength than manila line C) is equivalent to manila line D) will rot quicker than manila line E)NULL
Which statement about bilge keels is CORRECT?
A) They are critical strength members and require careful design consideration. B) They increase resistance to rolling. C) They attach to a low stress area. D) They provide support when the vessel is drydocked. E)NULL
Your vessel is backing on the starboard screw, and going ahead on the port screw. The bow will __________.?
A) back on a straight line B) move ahead on a straight line C) swing to port D) swing to starboard E)NULL
While towing, sudden shock-loading caused during heavy weather can be reduced by __________.?
A) using a short tow hawser B) using a nonelastic type hawser C) using a heavier hawser D) decreasing the catenary in the hawser E)NULL
The cheek length of a block in inches should be about __________.?
A) three times the circumference of a manila line B) five times the diameter of a manila line C) twice the diameter of its sheaves for manila line D) twenty times the diameter of a manila line E)NULL
The signal man assisting the crane operator has his arm extended, with the thumb pointing up, and is flexing his fingers in and out for as long as the load movement is desired. This is the signal to __________.?
A) lower the boom and raise the load B) raise the boom and lower the load C) lower the boom and lower the load D) raise the boom and raise the load E)NULL