If an auxiliary diesel engine temperature is higher than nor

When using a fuel with a higher than normal sulfur content in an auxiliary four stroke diesel engine, you may

A.maintain higher than normal jacket water temperature

B.change the lube oil more frequently than normal

C.maintain a higher air-box temperature than normal

D.maintain a higher air-box pressure than normal

Sweat damage will occur in a cargo hold containing machinery parts when ______.

A.the outside air is colder than the cargo．

B.the air temperature of the hold is higher than the outside air temperature．

C.the dew point of the hold is higher than the temperature of the cargo．

D.the dew point of the outside air is lower than the temperature of the cargo

Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to _____________.

A.higher speed required

B.flywheel-effect

C.lower starting temperatures

D.higher compression pressures

A two stroke diesel engine exhaust temperature will be lower than a four stroke diesel engine of the same displacement because the _____. ① MEP is lower and the scavenging air is cooling the exhaust gases ② valve overlap in a four stroke

A.①

B.②

C.① and ②

D.Neither ① nor ② is correct

Sweat damage in a hatch full of canned goods in cartons will occur when the ______．

A.Air temperature is higher than the temperature of the cargo

B.Air temperature is lower than the temperature of the cargo

C.Dew point is higher than the temperature of the cargo

D.Dew point is lower than the temperature of the cargo

If an auxiliary diesel engine coolant temperature is higher than normal, but the thermostat is determined not to be defective, you would suspect a/an

A.cavitation erosion in the water jackets

B.excess corrosion inhibitor in the coolant

C.dirty jacket water cooler

D.defective turbocharger