B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Nautical Science
NAVAL ARCHITECTURE I
(Upto 2015 Batch)
Time 3 Hours Maximum 100 Marks
Answer all questions.
x 20 100)
1. Briefly explain the development of ocean going
merchant vessels.
Draw and explain plan, profile and cross sectional
view of a bulk carrier.
Or
Define:
List
Camber
Freeboard
LWL
Draft.
Draw midship section of a general cargo vessel.
2. A box shaped vessel 100m long and 14m wide is
floating in SW at a draft of 7.6 m. The light draft is
3.6 m and load draft 8.5 m. Find the present
displacement, DWT available and DWT aboard.
A box shaped vessel 16*5*12m floats is SW at a
draft of 6.1m. Find the RB%.
Or
Sub. Code
34
CP-8005
2
Wk 10
Draw plimsol line.
Define
TPC
Reserve buoyancy
Density
FWA
Archimedes principle.
3. Draw and explain:
Double bottom
Forecastle deck.
Or
Draw and explain
Peak tanks
Types of Keel.
4. Explain three states of equilibrium with sketches.
In a vessel of 8800 tonnes displacement and
KG 6.2 200 tonnes of cargo was loaded in the LH,
1.7 m above the keel. Find the final KG.
Or
500 tonnes of cargo was shifted 15 meters vertically
down wards in a vessel of 10000 t displacement.
Find the effect it has on the ship's KG and state
whether KG increase or decreases.
On a ship of 4,950 t displacement, KG 9.2 the
ship's jumbo derrick is used to load a weight of 50
from the wharf, on to the UD (KG 8 m). If the head
of the derrick is 25 m above the keel, calculate the
KG of the ship.
CP-8005
3
Wk 10
When the weight is hanging by the derrick on
the centre line but 2m above UD and
Cyter loading.
5. A box shaped vessel 24 5 3m had an even keel
draft of 1.2 m in DW of RD 1.009. Calculate the
draft in DW of RD 1.019.
Write differences between stiff ship and tender slip.
Or
A ship of 4000 t displacement has KG 5.1
KB 2.1m, KM 5.5m. Find the moment of statical
stability when she heels 24; assuming that she is
wall-sided.
Define
free surface effect
free surface correction
free surface moment.
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