ORAL
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2ND MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 100
Q. 991) Characteristics of a rocket parachute flare
X
1.shall reach an altitude of not less than 300mtrs
2.shall burn for not less than 40 secs.
3.intensity not less than 30,000 cd
4.descend rate should not exceed 5 mtrs/s
5.burns bright red in colour
6.shall not damage its parachute or attchments while burning.
Q. 992) Define load density , sf
Xload density-it is the weight of the cargo the unit area of the surface.unit-t/m2
sf-it is the space occupied by the unit weight of the cargo.unit-m3/t.
Q. 993) Sewage disposal criteris
X1, Comminuted & disinfected sewage shall be discharged >3miles frm nearest land
2, other sewages shall be discharged >12miles from nearest land
3, if the sewage was stored in holding tank then it shall be discharged at modreate rate approved by flag state based on imo standard when ship is in enroute at speed >=4 knots
4,shall not create visible floating solids
5,shall not dis colour the surroundings of water.
Q. 994) Define the terms parallax and refraction
XQ. 995) How will you check the moisture content of a cargo
Xuse spot test method described in cargo work, errol fernandes and then send it to lab for obtaining its MC, FMP and TML
Q. 996) What is the new requirement for immersion suits
Xpassenger ship
for every person assigned to crew the rescue boat.
cargo ship
aleast 3 in each life boat
one for every person onboard.
brendon n kamlesh
Q. 997) Situation - restricted visibility , vessel on your port bow is crossing actions & precautions ?
X
reduce ur speed to d min at which she can be kept on her course and if necessary take oll her way off.
Q. 998) Define garboard strake , shear strake
XQ. 999) What is the bouyancy requirement for a lifebuoy & a life jacket
Xlifebuoy-be capable of supporting not less than 14.5 kg of iron in fresh water for a period of 24 h;A lifejacket shall have buoyancy which is not reduced by more than 5% after 24 h submersion in fresh water.
Q. 1000) What do you understand by annealing
XAnnealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization temperature and maintaining a suitable temperature, and then cooling. Annealing is used to induce ductility, soften material, relieve internal stresses, refine the structure by making it homogeneous, and improve cold working properties.
brendon n kamlesh
a heat
treatment that alters the
microstructure of a material
causing changes in properties
such as strength, hardness,
and ductility
