When purging a refrigeration system, the compressor is_____________?
A) Running B) Running with the bypass open C) Shut down D) Running with the bypass closed E)Running stedily
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What safety precautions should be observed by the crew while working?
A) They should wear safety shoes B) They should wear ear protection C) They should not wear jewelery D) They should maintain cleanliness and orderliness E)All of the above
The main characteristics of a diesel engine is :?
A) Internal combustion engine: the fuel is burned external of the cylinders B) Producing high power of energy C) Both 2 or 4 stroke, fuel is burned inside the cylinders D) Economical in compare with the steam engines, but hard…
The requirement for portable fire equipment is __________?
A) Annual check B) Keeping in easily accessible places C) Hose connections and keeping hoses in good condition D) All above E)Before the end of consuming period
During the inspection of the machinery spaces on board for oil and oily mixtures, the port state control officer ( PSCO) may determine and takes into account:?
A) If reception facilities have been used B) If there is any inadequacy of such facilities C) The quantity of oil residues generated D) The capacity of sludge and bilge water tank and the capacity of the oily-water separator E)All…
A “pneumercator” measures:?
A) Oil pressure B) Air level C) Liquid level D) Air pressure E)Air temperature
When the ship arrived at the port, everywhere was______ snow.?
A) covered in B) covering by C) covering D) covered E)cover with
Read the following paragraph very carefully and then answer the question: “When tending a diesel engine during running; there are certain things to be checked/controlled. Among these; checking the fuel oil pressure after the filter, keeping the seawater temperature at the air cooler inlet as low as possible, avoiding the condensation in the charging air receiver, seeing that the exhaust gases are free form smoke at all loads, keeping a constant check on the charging air pressure and temperature, can be mentioned.” One of the following procedures IS NOT something that should be checked/controlled, when tending a diesel engine during running. Choose that procedure and mark it:?
A) Check the fuel oil pressure after the filter B) See that the exhaust gases are free from smoke C) Keep a constant check on the charging air pressure and temperature D) Check the oil level and the valves and…
A scotch marine boiler does not have:?
A) Furnace B) Manhole C) Smoke tubes D) Burner E)Drums
If a heat exchanger is designed to condense refrigerant vapor using central cooling fresh water as a condensing medium, what statement is true ?
A) The refrigerant vapor loses latent heat, the central cooling fresh water loses latent heat B) The refrigerant vapor loses sensible heat, the central cooling fresh water gains latent heat C) The refrigerant vapor loses latent heat, the central cooling…