Uploaded by James Willison Solis

CHS - QUIZ 1 1-21

advertisement
1. A box has a dimension of 2 ft x 3 ft x 3 ft
and weighs 105 lbs. What is its stowage
factor?
a. 413
b. 384
c. 348
d. 380
SOLUTION
Volume = 2 ft. x 3 ft. x 3 ft.
Volume = 18 ft³
Stowage Factor = V ÷ Weight / 2240 lbs.
= 18 ft³ ÷ 105 lbs. / 2240 lbs.
= 18 ft³ ÷ 0.0468
Stowage Factor = 384.6
2. A ship displaces 6,700 tons at a summer
draught of 6.66 mtrs. If the fresh Water
allowance is 285 mms, find its
corresponding change of draught when
proceeding to a port of unit density.
a. 0.285 mtr
b. 28.5 mms
c. 2.85 cms
d. insufficient data
3. A ship displaces 8,800 tons at a summer
draught of 7.28 mtrs. Its Fresh Water
Allowance is 315 mms. What would be its
draught in unit density?
a. 10.43 mtrs
b. 7.3115 mtrs
c. 7.595 mtrs
d. insufficient data
4. A box has a dimension of 2ft x 2.5ft x 3ft
and weighs 95 lbs. What is its stowage
factor?
a. 353.7
b. 368.7
c. 348.7
d. 337.7
5. You are going to load bales of abaca with SF 60
and lead with SF 20. The remaining space to be
loaded is 220,000 cu ft and the total weight to be
loaded is 5000 tons. How much of each cargo
should be loaded to make the vessel FULL AND
DOWN?
a. 2,000t lead / 3,000t abaca
b. 1898.3t lead / 3,101.7t abaca
c. 3,101.7t lead / 1,898.3t abaca
d. 1745.6t lead / 3,254.4t abaca
6. A vessel displaces 6,800t. After loading 1000t of
cargo with a KG of 4.2 Mtrs and 1,500t with a KG of
6.4 mtrs, the new KG was then 6.6 mtrs. What was
the KG prior to loading?
a. 7.1 mtrs
b. 7.0 mtrs
c. 6.9 mtrs
d. 6.8 mtrs
7. A vessel with a light displacement of 6,500t loaded
cargoes of 1,300t, 1,400t and 1,200t with a KG of
6.9m, 6.4m and 8.4mtrs respectively. After loading, the
new KG was then found to be 7.07 mtrs. What was
The KG prior to loading?
a. 6.87 mtrs
b. 7.17 mtrs
c. 6.57mtrs
d. 7.00 mtrs
8. The loaded displacement of a vessel is 12,200 tons.
After discharging 2,200t and 1500t with a KG of
8.5mtrs and 4.2 mtrs respectively, the new KG was
then found to be 5.67 mtrs, what was the KG prior to
discharging?
a. 6.00 mtrs
b. 6.22 mtrs
c. 5.88 mtrs
d. 5.66 mtrs
9. On arrival at the discharging port, the displacement
was 7800t. after Discharging 3,200t of cargo with an
average KG of 5.8 mtrs, the new KG was found to be
6.14 mtrs. What was the vessel’s KG prior to
discharge?
a. 6.00 mtrs
b. 5.86 mtrs
c. 6.28 mtrs
d. 5.96 mtrs
10. A bulk carrier has a displacement of
40,000 tons and the KG is 9 mtrs. The KN at
10 degrees heel is 1.87 mtrs. What is the
righting arm at this heel?
a. 0.297
b. 0.387
c. 0.279
d. 0.307
11. A ship displaces 30,000 tons and the KG is
8.7 mtrs. The KN at a heel of 10 degrees is
1.77 mtrs. What is the righting arm at this
heel?
a. 0.243
b. 0.248
c. 0.259
d. 0.285
12. A ship displaces 15,000 tons and the KG is
8.2 mtrs. At an angle of heel of 15 degrees,
KN is 2.88. Solve for the righting moment.
a. 10,543 mtr-tons
b. 11,365 mtr-tons
c. 10,095 mtr tons
d. 12,233 mtr-tons
13. While inspecting the log pond, you noticed
that the average length of the logs to be loaded
is 15 mtrs and the average diameter is 70 cms.
While floating in pond of density 1012 kgs/m3,
90 percent of their volume is submerged. What
is the average weight of each log?
a. 5.26 tons
b. 6.13 tons
c. 5.81 tons
d. 5. 38 tons
14. A log is floating in a pond of relative
density 1.008. Its length is 12 mtrs and its
diameter is 50 cms. If 95% of the log is
submerged, what is its weight?
a. 2.375 tons
b. 2.492 tons
c. 2. 188 tons
d. 2.247 tons
15. A box–shaped vessel with 12 mtrs. beam
is floating upright at a draught of 6.7 mtrs.
even keel. Find the draft if the vessel is
now listed 18 degrees.
a. 8.421 mtrs
b. 8.226 mtrs
c. 7.947 mtrs
d. 7.667 mtrs
16. You are going to load bales of abaca with SF 59 and
lead with SF 19. The remaining space is 173,700 cu.ft.
and the total weight to be loaded is 4,300tons. How
much of each cargo should be loaded to make the
vessel FULL AND DOWN?
a. 2159.5t lead / 2140.5t abaca
b. 2140.5t lead / 2159.5t abaca
c. 2,000t lead / 2, 300t abaca
d. 1869.4t lead / 2430.6t abaca
17. On completion of loading, a vessel of
7,300t displacement and a GM of 0.65 mtr
was listing 2 degrees to stbd. A port
wingtank, located 6 mtrs from the centerline
is to be filled with ballast. How much ballast
should be taken in to offset the list?
a. 27.6 tons
b. 25.4 tons
c. 26.5 tons
d. 28.8 tons
18. On completion of loading, a vessel of
6,800 tons displacement and a GM of 0.58
mtr was listing 2.5 degrees to stbd. How
many tons of ballast should be pumped into
the port wingtank, 7 mtrs from the centerline
to make the vessel upright?
a. 23.8 tons
b. 22.7 tons
c. 24.6 tons
d. 25.9 tons
19. On completion of loading, a vessel of
8,800 tons displacement and a GM of 0.45
mtr was listing 3 degrees to stbd. How many
tons of ballast should be pumped into the
port wingtank, 6 mtrs from the centerline to
make the vessel upright?
a. 36.8 tons
b. 34.6 tons
c. 32.1 tons
d. 33.7 tons
20. A rule of thumb when maneuvering to a
dock is, a vessel with a speed of 1 knot
travels about:
a. 111 mtrs/min
b. 100 mts/min
c. 100 ft/min
d. 111 ft/min
21. A rule of thumb when maneuvering to a
dock is, a vessel with a speed of 2 knots
travels about:
a. 222 ft/min
b. 200 mtrs/min
c. 222 mtrs/min
d. 200 ft/min
Download