Section 16: Knots and Lines 183
b. Continue riding even if you encounter restricted
visibility.
c. Use good judgment and have consideration for
others.
d. If darkness falls, keep riding but turn your headlight
on.
12. Considering the total weight of the boat, fuel and
water, motor and gear, what percentage of this total
should be added to determine a safe trailer capacity?
a. 5%
b. 10%
c. 15%
d. 40%
13. Low trailer tire pressure is a common factor in wheel
casualties. After determining the proper pressure
from the tire markings, when should you check the
tire pressure?
a. when the tires are warm
b. when the tires are cold
c. just after towing
d. when the tire is jacked up
14. What is the correct way to attach the trailer safety
chains to your tow vehicle so that they will support
the coupler in such a manner that it will remain clear
of the ground if accidentally uncoupled?
a. crossed over
b. hooked straight to
c. crossed under
d. directed around
15. What trailer winch material is best for larger boats?
a. polypropylene line
b. nylon line
c. manila line
d. steel cable or nylon strap
16. What precaution should the winch operator take to
prevent injury in the event the winch line breaks?
a. Stand close by and watch the winch operation
closely.
b. Tape up any winch cable that has broken strands.
c. Stay out of line with a winch cable.
d. Release the ratchet on the winch handle.
17. How do you determine the maximum gross weight
that is acceptable for your vehicle?
a. vehicle owner’s manual
b. vehicle registration certificate
c. trailer registration certificate
d. trailer data plate
18. What is a quick corrective action for insufficient
trailer tongue weight?
a. the placement of gear in the boat
b. winch line tension
c. tire pressure
d. hitch clamp torque
19. What is a useful tip for hand placement on the tow
vehicle steering wheel when backing a trailer?
a. top
b. left side
c. right side
d. bottom
20. What is the name for rope cut to purposeful lengths
for use on boats?
a. twine
b. cordage
c. line
d. small stuff
21. What is the nautical name for a section of line or cable
between the bitter and working ends?
a. loop
b. standing part
c. free end
d. knot
22. Good knots are easy to tie and untie. What is a third
characteristic?
a. look shipshape when tied
b. easily run through a grommet or ship’s block
c. not slip under tension
d. resist chafing