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class 4 exam
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JAN SHIP CONSTRUCTION
In condition of assignment bulwark provided with a hole name of that hole
Freeing holes
Option don’t know ans is this
Def of light weight ship (guies read properly coz that was to much confusing)
3 question reg no plating of hull (alphabetically kill to top, numerically aft to fwd)
KG of ship increases with...a) adding weight above on present kgb)balasting db tankc)moving weight in transverse directiond)moving weight in frwd direction
What is the Name of the plate which Joins the STEM to the FLAT PLATE KEEL….
Shoe Plate, Coffin Plate, Oxter Plate, Stealer Plate???
Peak tanks are tested by: A. Hose test B. By filling them with water up to load water line C. By filling them with water up to the maximum head which can come on them in practice or 2.44 m above tank crown, whichever is higher
Deep tanks are tested by: A. Hose test B. Filling them with water up to maximum level C. Filling them with water up to maximum head, which will come on them, i.e. to the top of the air pipe or 2.45 above the crown of the tank which ever is higher D. Filling them with water up to maximum head, which will come on them, i.e. to the top of the air pipe or 2.45 above the crown of the tank which ever is lower.
5 years dry docking…one Dry dockingcan be missed… if(multiple)a) ABS is given all the necessary information’s about the shipb) ship less than 15 years oldc) fire on shipd) good quality resistant paint in underwater hull
Wake is defined as A. w= (PN- V_S)/V_S ;B. w= (PN- V_a)/PN;
C. w= (PN- V_S)/PN; D. w= (PN- V_a)/V_a ;
2] by using which of the tank we can change the draft but not changing trim of the ship a]peak tank,b]DB tank,c) deep tank,d) top side tk
2. kg of ship increases with...a) adding weight above on present kgb)balasting db tankc)moving weight in transverse directiond)moving weight in frwd direction
A vessel loaded to summer load line. Summer load line Displacement= 15,000 t, TPC=26.2, ship’s mean draft= 6.2 m. Ship is going in Winter Region…what is the New Displacement?
a) 14112.3
b) 14878.8
c) 14655.1
d) 14321.9
Station AP 2 3 4 5 FP
?? breadth (m) 0.9 1.5 2.1 1.6 0.9 0.1
Length of water plane is 15 meters.
A. 0.2 t/cm
B. 0.3 t/cm
C. 0.4 t/cm
D. 0.5 t/cm
Station: AP 1 2 3 4 FP
?? Breadths (M) 1.0 1.44 1.55 1.33 0.89 0.2
Length between perpendiculars is 14 meters.
Consider the nearest value.
A. 0.56 tonnes/cm
B. 0.34 tonnes/cm
C. 0.43 tonnes/cm
D. 0.65 tonnes/cm
Why the frictional resistance increases when the draft increases?
A. Dead weight of the vessel increases.
B. Length of water plane increases.
C. Wetted surface increases.
D. Temperature of water reduces as draft increases
The RD solid block of wood is 0.75. All sides are equal to 1.0m. The block is floating in mercury. The RD of mercury is 13.4. What will be weight of a steel block just to submerge the block?
A. 12.6 tonnes;
B. 13.5 tonnes;
C. 14.2 tonnes;
D. 15.0 tonnes;
Find the TPC of the water plane. Length between perpendiculars is 15 m.
Station: AP 2 3 4 FP
?? breadth (m): 0.6 1.1 1.6 0.9 0.1
A. 0.5 tonnes/cm
B. 0.4 tonnes/cm
C. 0.3 tonnes/cm
D. 0.2 tonnes/cm.
Find the TPC when offset of water plane is as follows:
Station AP 2 3 4 5 FP
?? breadth (m) 0.9 1.5 2.1 1.6 0.9 0.1
Length of water plane is 15 meters.
A. 0.2 t/cm
B. 0.3 t/cm
C. 0.4 t/cm
D. 0.5 t/cm
Which of the following must be provided in a shaft tunnel?
A. A watertight door at the engine room bulkhead.
B. Escape trunk at the aft end.
C. A tunnel well for drainage
D. All of the above
Find CWP and TPC of a vessel whose ??breadths of the water plane as follows:
Station: AP 1 2 3 4 FP
?? Breadths (M) 1.0 1.44 1.55 1.33 0.89 0.2
Length between perpendiculars is 14 meters.
Consider the nearest value.
A. 0.56 tonnes/cm
B. 0.34 tonnes/cm
C. 0.43 tonnes/cm
D. 0.65 tonnes/cm
20. A barge of length 6.5m, Beam 10.2 m and Draft 4 m in Even Keel Condition. The ship is in water of Relative Density 1.006 t/ Cubic Meter. Find the Bodily Sinkage of the Mean Draft, if the Displacement is Constant….. 0.086
What is the direction of left had propeller
when looking from aft of ship it will rotate anitclockwise
when looking from aft of ship it will rotate clockwise
