Bilge System

Question 1

Accidental flooding of the engine room bilges through the bilge system is prevented by __________.

Answer 1

stop-check valves installed in the bilge suction manifolds

Question 2

The bilge system has been performing well; however, the aft starboard engine room bilge-well suddenly fails to be pumped out. Which of the following should be done first to determine the cause?

Answer 2

Attempt to pump out another bilge well to determine if the entire system is affected.

Question 3

If one of the bilge system manifold valves does not properly seat, the __________.

Answer 3

bilge system will lose vacuum and prevent the other bilges from being pumped out

Question 4

Coast Guard Regulations (46 CFR Part 56) for bilge and ballast piping require that __________ .

Answer 4

the bilge pumping system be operable under all practicable conditions

Question 5

Coast Guard Regulations (46 CFR) require the emergency bilge system to __________ .

Answer 5

be independent of the main bilge system

Question 6

The overboard discharge valves in the bilge system illustrated are __________ . GS-0042

Answer 6

stop-check valves

Question 7

The shaded portion of the diagram shown in the illustration represents a __________ . GS-0125

Answer 7

discharge manifold

Question 8

Which of the following statements indicates compliance with Coast Guard Regulations (46 CFR Part 56) concerning a vessel’s bilge system?
A All bilge manifold suctions shall be capable of being locally controlled from above the floor plates.
B The system must be capable of operation under all practicable conditions after a casualty, whether the vessel is upright or listed.
C Peak tanks, chain lockers, and decks over peak tanks may be drained by eductors, ejectors, or hand pumps.
D All of the above.

Answer 8

D All of the above.

Question 9

What is the general arrangement for bilge wells in the machinery spaces?

Answer 9

Generally a bilge wells are provided in the port and starboard aft corners since a vessel is typically trimmed by the stern and to facilitate pump when the ship has a list.

Question 10

You are unable to pump out the aft starboard engine room bilge well that is fouled, with one foot of water over the top of the bilge well, what action should be carried out?

Answer 10

Remove the bilge manifold valve and attempt to back flush the line.

Question 11

The aft starboard bilge well is clogged, and back flushing has not been successful. The next practical solution would be to __________.

Answer 11

properly and safely empty the well with a portable pump then manually muck it out

Question 12

Clogged limber holes can endanger a ship’s stability by __________.

Answer 12

preventing water from draining to the bilge well

Question 13

The purpose of a bilge well is to __________.

Answer 13

collect water to be pumped out

Question 14

An inadequate reciprocating bilge pump discharge is most often caused by __________.

Answer 14

clogged suction strainers

Question 15

In order to take suction on the lube oil drain tank cofferdam with the bilge pump shown in the illustration, how many suction side valves must be open? GS-0042

Answer 15

Two

Question 16

One of the consequences in continuing to operate a centrifugal bilge pump with the discharge valve closed, is that the __________.

Answer 16

pump will overheat

Question 17

What is meant by the term independent bilge suction?

Answer 17

The means by which the machinery space bilge is pumped out by a pump normally used as a bilge pump but independent of any bilge manifolds or automatic bilge suction valves.

Question 18

What is meant by the term emergency bilge suction?

Answer 18

The means by which the machinery space bilge is pumped out by a pump not normally used as a bilge pump and drawing a suction directly on the bilge independent of any bilge manifolds or automatic bilge suction valves.

Question 19

A centrifugal bilge pump requires priming __________.

Answer 19

due to the inability of this type of pump to lift water to cover the suction (eye) of the impeller

Question 20

If an operating bilge pump is developing good vacuum, but is unable to discharge any water, which of the following problems is the most probable cause?

Answer 20

suction strainer is clogged

Question 21

If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for all of the following EXCEPT \_\_\_\_\_\_\_\_\_\_.
A	the circuit breaker
B	for leaks in the suction piping
C	the suction strainer
D	relief valve is not properly seated

Answer 21

A the circuit breaker

Question 22

Which statement is TRUE concerning a power driven fire pump on board a small passenger vessel?

Answer 22

It may also serve as a bilge pump.

Question 23

The emergency bilge suction valve is typically used __________.

Answer 23

if the bilges become flooded and they cannot be emptied by any other means

Question 24

What is meant by the term emergency bilge suction?

Answer 24

The means by which the machinery space bilge is pumped out by a pump not normally used as a bilge pump and drawing a suction directly on the bilge independent of any bilge manifolds or automatic bilge suction valves.

Question 25

In accordance with federal regulations under 33CFR Subchapter O, for U.S non- oceangoing ships, what is the required means for preventing pollution by oil as it pertains to handling bilge slops?

Answer 25

The non-oceangoing ship is required to retain onboard all oily mixtures either in the bilges or in a slops tank, and it is required to be equipped to discharge these mixtures to a reception facility.

Question 26

In accordance with federal regulations under 33CFR Subchapter O, for oceangoing ships of less than 400 gross tons, what is the required means for preventing pollution by oil as it pertains to handling bilge slops?

Answer 26

The oceangoing ship of less than 400 gross tons is EITHER required to retain onboard all oily mixtures either in the bilges or in a slops tank and required to be equipped to discharge these mixtures to a reception facility, OR the ship is required to be equipped with an approved oily-water separator.

Question 27

On U.S. inspected ships, oily water separating equipment, bilge alarms, and bilge monitors must be approved under __________.

Answer 27

46 CFR 162