15 Questions
What is the definition of absolute humidity?
The ratio of the mass of water vapor in the air to the volume of the air-water vapor mixture
What is the purpose of a flameproof enclosure?
To contain any explosion that may occur within the enclosure and prevent it from igniting the surrounding atmosphere
What is the effect of single phasing on a motor?
The motor will overheat and potentially catch fire
How can steering be maintained if the telemotor system fails in an electro-hydraulic steering gear?
By manually operating a hand wheel that is connected to the steering gear
What is the definition of relative humidity?
The amount of water vapor in the air compared to the maximum amount of water vapor the air can hold at a given temperature
What is the purpose of the devices fitted to a main distribution switchboard to protect AC generators operating in single or parallel mode?
To provide overcurrent and overload protection for the generators
What is the definition of dew point?
The temperature at which water vapor in the air will start to condense into liquid water
How can steering be achieved if there is a total failure of the hydraulic system in an electro-hydraulic steering gear?
By manually operating a hand wheel that is connected to the steering gear
Which of the following is NOT a method for remote operation of tank quick closing valves?
Mechanical linkage
Why are centrifugal pumps not self-priming?
They require a suction lift to create a vacuum
Which of the following is NOT a typical safety feature of a main air receiver?
Automatic lubrication system
In the hydraulic system shown in the worksheet, what is the function of the accumulator?
To store energy for emergency operation
What is the purpose of the relief valve in a hydraulic system?
To prevent excessive pressure buildup
Which of the following is NOT a function of air conditioning?
Generating propulsive power
At what pressure should the relief valve on a main air receiver typically lift?
1.25 times the maximum working pressure
Prepare for the Small Vessel Second Engineer 060-03 exam on Auxiliary Equipment Part I administered by the Scottish Qualifications Authority on behalf of the Maritime and Coastguard Agency. This quiz focuses on topics related to auxiliary equipment used in small vessels.
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