95SCS-4
Sr. No. 5
EXAMINATION OF MARINE ENGINEER OFFICER
Function: Controlling Operation of ship and care for persons on board
at Operational Level
SHIP CONSTRUCTION & STABILITY
CLASS IV
(Time allowed - 3 hours)
Afternoon Paper
INDIA (2001)
N.B. -
Total Marks 100
(1) All Questions are compulsory
(2) All Questions carry Equal Marks.
(3) Neatness in handwriting and clarity in expression carries weightage
1. A welding procedure used for joining dissimilar metals used in the construction of a Vessel would be
recorded in the ______________.
A. welding plan
B. ASTM specifications
C. construction portfolio
D. Mercantile Marine Department Records
E. D. G. Shipping Records
Briefly Justify Your Answer
2. A Vessel having continuous closely spaced transverse strength members is _____________.
A. longitudinally framed
B. transversely framed
C. cellular framed
D. web framed
Briefly Justify Your Answer
3. On a Vessel, the deck stringer is the outboard most deck ________________.
A. plating
B. beam
C. stiffener
D. stanchion
Briefly Justify Your Answer
4. Compared to internal structural plating, the exterior hull plating on a Vessel is usually
_____________.
A. stronger
B. thinner
C. more corrosion resistant
D. a lower grade steel
Briefly Justify Your Answer
5. The purpose of bilge keels is to _____________.
A. lower the center of gravity of the ship
B. reduce the amplitude of roll
C. reduce pitching
D. reduce yawing
Briefly Justify Your Answer
6. With reference to a vessel's structural integrity, the most significant characteristic of a cryogenic
liquid is its ______________.
(A) capability of causing brittle fractures
(B) highly corrosive action on mild steel
(C) vapor cloud which reacts violently with saltwater
(D) toxicity at atmospheric pressure
Briefly Justify Your Answer
7. The hulls of most modern towing vessels constructed today are fabricated from _______________.
(A) wrought iron
(B) high alloy steel
(C) mild steel
(D) corrosion resisting steel
Briefly Justify Your Answer
8. A rectangular barge is 23.2m long, 3.8m beam and 2.4m deep. The bottom is covered externally with
teak, of density 800 kg/m3, to a thickness of 0.13m. Due to grounding the teak sheathing over the
whole length is torn off and an empty side-to-side compartment, 4.9m long, becomes flooded. If the
original draught was 1.2m when floating in water of density 1024 kg/m3 calculate the new draught
when floating in water of 1000kg/m3.
9. A centre tank in a ship is 12.8m long and the bottom longitudinals are spaced 0.76m apart. The tank
contains oil having a specific volume of 1.085m3/tonne to a height of 14.6m. If the ship is floating at
a draught of 9.14m in seawater determine the load, due to liquid pressure, on each bottom
longitudinal.
10. A vessel 122m long has a displacement of 12000 tonne. The prismatic coefficient is 0.74 and the midship section coefficient is 0.93 at a draught of 6m. Calculate the beam of the vessel.
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95SCS-4
Sr. No. 5
EXAMINATION OF MARINE ENGINEER OFFICER
Function: Controlling Operation of ship and care for persons on board
at Operational Level
SHIP CONSTRUCTION & STABILITY
CLASS IV
(Time allowed - 3 hours)
Afternoon Paper
INDIA (2001)
N.B. -
(1) All Questions are compulsory
(2) All Questions carry Equal Marks.
(3) Neatness in handwriting and clarity in expression carries weightage
Answers
Answer for Question No. 1
Correct Answer : C
Answer for Question No. 2
Correct Answer : B
Answer for Question No. 3
Correct Answer : A
Answer for Question No. 4
Correct Answer : A
Answer for Question No. 5
Correct Answer : B
Answer for Question No. 6
Correct Answer : A
Answer for Question No. 7
Correct Answer : C
Answer for Question No. 8
1.425 m
Answer for Question No. 9
390.098 kN 40 tonnes
Answer for Question No. 10
23.25 m
Total Marks 100