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2ND MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 100
Q. 991) Wht do you understand by angle of repose
X
when the bulk cargo is loaded on board.,to a large amount,it forms a shape of slope.
So the angle between the horizontal area and the slope formed by cargo is called angle of repose
it is the angle btw horizontal plane and the cone slope optained when bulk cargo is loaded on this plane
Q. 992) What is the dischare criteria for machinery spaces
Xenroute
passd thru ODMC n effluent not more than 15ppm
not originated from Cargo spaces or cargo p/p rm
AND NOT IN ANTARCTIC
brendon n kamlesh
Q. 993) What do you understand by t & p notices
X
temporary notice are given when some information exist on chart for some short time . and prelimry notice are given when in future there will some work will take place in future
both are related to notices to mariner ,, both are temperary warnings ,, and hence the related corrections are done in pencil on the chart.
temporary and preliminary notices to mariner....
temporary notices are the information that remains remains temporary usually not more then 3 months and preliminary notices are the notices that are at their preliminary stages nd can be permanent at a later stage....such as extension of any port, contruction of any bridge...etc
Q. 995) What is Muster list ?
XQ. 996) When will you condemn a wire
Xif any length of 8 diameter the total number of visible broken wires exceed 10% the number of wires in the wire rope.
Q. 997) What is the purpose of the weak link
Xis to detach the life raft from the painter
painter is permanently secured to ship n weak link is connected to life raft.
brkng strength 2.2+/- 0.4 kn.
brendon n kamlesh
Q. 1000) Use of PV valve and PV breaker ?
Xpv v/vs are 4 pressure n vaccum bt contains no anti freeze mixture
while pv brkr contains antifreeze mix.
pv v/vs r 4 each tank while pv brkr is ony 1 connected to entire system which acts as safety device
pv v/vs n brkr should b there while ur HVV is optional.
Brendon n Kamlesh
pv valve is primary safety device, pv breaker is the secondary safety device which has to be set on a slightly higher pressure t.han the setting of pv valve
Pv valves main use is for thermal variation also used for venting , normaly called primary means of venting , Pv BREAKER is safety device , used as secondary means for venting incase primary means does not work...
