Cargo Handling and stowage

Question 1

The distance between the surface of the liquid and the tank top in a cargo tank is called __________

Answer 1

Ullage

Question 2

Oil may NOT be transferred unless __________.

Answer 2

discharge containment equipment (i.e. drip pans) are in place

Question 3

Cargo transfer operations on a tank vessel need NOT be stopped when __________.

Answer 3

a tug comes alongside while the tanker is loading grade D and E cargoes

Question 4

Litmus paste is used in order to determine

Answer 4

Thievage

Question 5

Oil product samples should be taken from the __________.

Answer 5

Dock rise, Ship’s cargo tanks, or shore tank discharge

Question 6

When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery, check it __________.

Answer 6

one half the ullage of the tank and one meter below the tank top

Question 7

Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because __________.

Answer 7

a subsequent temperature rise will cause the cargo to overflow

Question 8

Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker?

Answer 8

Contamination of the cargo

Question 9

When loading a tanker, you should __________.

Answer 9

close valves by closing them down, reopening one or two turns, and re-closing

Question 10

A vessel loads edible oil in a deep tank through a manhole at the mid-length of the tank. In order to fill the tank to maximum capacity, what trim should the vessel have?

Answer 10

In level trim

Question 11

The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of the __________.

Answer 11

booster pump coming on the line and discharging properly

Question 12

When stripping a tank, excessive air in the suction line may cause __________.

Answer 12

loss of suction

Question 13

While discharging a tanker, list can be controlled by __________.

Answer 13

using wing tanks near the longitudinal center, discharging as necessary

Question 14

When discharging an oil cargo, the first consideration is to __________.

Answer 14

get the bow up

Question 15

You are on a tankship discharging oil. When all of the oil that the main cargo pumps can handle is pumped out of a tank, the remainder is __________.

Answer 15

stripped to one tank and then pumped out with the main pumps

Question 16

While discharging a cargo, the stripping of the tanks falls behind schedule. This would indicate the __________.

Answer 16

main pumps are leaving too much oil in the tanks

Question 17

The complete details of a crude oil washing system aboard your vessel, including the operating sequences and procedures, design characteristics, a description of the system, and required personnel will be found in the __________.

Answer 17

Crude Oil Washing Operations and Equipment Manual

Question 18

You have completed a crude oil wash. What action should be taken with the oil in the lines running to the washing machines?

Answer 18

Open a COW nozzle forward and one aft and drain the line into the after tank by gravity

Question 19

The designations A, B, C, D, and E grades of cargo refer to the __________.

Answer 19

flash point range and Reid vapor pressure index of petroleum products

Question 20

A petroleum liquid has a flash point of 85° F. This is a grade __________.

Answer 20

D combustible liquid

Question 21

Butadiene, inhibited, is labeled as a __________.

Answer 21

flammable gas

Question 22

You may be able to avoid loss of suction in a pump by __________.

Answer 22

using a full tank to keep the pump primed, opening the vent cock on the pump, closing down on the tank valve

Question 23

To insure proper seating when closing a valve on a tank, the valve should be __________.

Answer 23

closed, opened a half turn, and then closed again

Question 24

What is the purpose of the relief valve of a cargo pump?

Answer 24

Permits the return of cargo to the suction side of the pump

Question 25

A deepwell pump is a type of __________.

Answer 25

centrifugal pump

Question 26

All of the following steps are taken in starting a centrifugal pump, EXCEPT to __________.

Answer 26

set the relief valve

Question 27

What is the purpose of pressure-vacuum relief valves?

Answer 27

Automatic regulation of pressure or vacuum in enclosed spaces

Question 28

What is LEAST likely to be used to strip a cargo tank?

Answer 28

Centrifugal pump