You are in a tropical port. The refrigeration machinery on a

Refrigeration machinery is often surveyed before loading reefer cargo. This survey is usually performed by the ______.

A.MSA

B.CCS

C.CCIQ

D.local port authority

You are in charge of a towing vessel that operates exclusively on inland waters. You regularly tow barges that provide services (cargo lighters，fuel barges，etc.) to foreign flag vessels in port. What will be accepted as proper credentials for you and your crew?

A.No credentials are required since you operate on inland waters only

B.Social Security card

C.State driver's license with photo ID

D.Merchant Mariner's Document

(ii) Recommend which of the refrigeration systems should be purchased. You should state your reasons

which must be supported by relevant calculations. (3 marks)

In the daytime, you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows ______.

A.a black ball

B.a black cone

C.two black cones

D.a basket

You are in a tropical port．The refrigeration machinery on a container loaded with air-cooled fruit fails．It cannot be repaired for 18 to 24 hours．Which step should you take to reduce the temperature rise and spoilage of the fruit ________．

A.Discharge a cylinder of nitrogen into the container

B.Shade the container and periodically hose it down

C.Seal any ventilation openings and add dry ice

D.Spread ice over the top layer and in any voids within the container

Before any machinery is put in operation，you should ______.

A.ventilate all compartments，see that the machinery is clean and there are no obstructions

B.just turn the key and start up

C.take for granted that there are no fuel leaks

D.assume there are no volatile fumes in the engine space

You are loading in the winter in Albany，N.Y.，for a voyage to a port governed by the tropical load line mark. Which of the following statements is TRUE? (Hydrometer reading in Albany is 1.000)

A.You may not exceed the winter load line mark when you finish loading except for the burnout to sea

B.You may calculate the burnout necessary to reach the tropical zone and load extra cargo to compensate

C.The freshwater allowance and burnout to sea may be subtracted from the required freeboard in Albany

D.You may load to the winter mark less the fresh water allowance if you will be at the tropical mark upon arrival in the tropical zone

When you are making a high potential test on a piece of repaired electrical machinery, a rise in leakage current indicates _______.

A.good insulation

B.bad insulation

C.high insulation power factor

D.a high slot discharge factor

Tropical cyclones are classified by form and intensity．Which system does not have closed isobars ________．

A.Hurricane

B.Tropical disturbance

C.Tropical depression

D.Cyclone