EXAMINATION PAPEBS 681
40,200 cub. ft. The vessel has to be loaded down to her marks
with the maximum quantities of wheat stowing at 48 cubic feet
per ton and oats stowing at 80 cubic feet per ton. Required the
quantity of each.
8. A beam 8 feet long weighs 4 tons. Find the minimum length of
each leg of 'the slings required to support the beam if the safe
working load of the only available wire is 2£ tons.
Paper 9.
1. What routine duties would you assign to the carpenter?
2. A ship's company consists of the master, 3 mates, 4 engineers, 1 W/T
operator, 4 stewards, 10 sailors, and 11 firemen. Draw up a plan
of boat stations and allot duties to each man.
3. A white painted steel deckhouse shows signs of corrosion. State
fully how you would treat it.
4. How would you mix cement for application to a double bottom and
how would you apply it?
5. Describe how you would stow a full cargo of iron ore (a) in a 'tween
deck vessel; and (b) in a single deck vessel.
6. What is meant by "bleeding" bags? Would you advocate this
procedure?
7. A derrick makes an angle of 50° with a vertical mast and 12 tons is
being lifted with a double purchase. Find the stress on the shackle
at the derrick head allowing 10 per cent, for friction, also the
stress on the shackle at the lead block at the derrick heel if the
winch is 10 feet from the heel of the mast,
8. Find the approximate amount of paint required to cover the ship's
bottom up to 15 feet draught allowing 1 cwt. of paint per 3000
square feet. Length 280 ft., breadth 38 ft., coefficient of fineness
•80.
Paper 10.
1. What entries are made in the mate's log after a collision?
2. What are the merits and demerits of patent driers? HOTT would
you treat lifeboat air tanks with a view to preserving tnem?
3- Describe in detail how you would treat new hatch covers and
tarpaulins.