The cargo tanks of chemical tankers are required to be provided with venting systems which are independent of air pipes and vents serving other parts of the ship.

Vertical-axis wind turbines have the main rotor shaft arranged vertically.

The welding position in which the weld axis, at the point of welding, is approximately vertical, and the weld face lies in an approximately vertical plane.

Vertical wind shear is a change in wind speed or direction with a change in altitude.

The direct method of voice communication. It is limited in range with normal equipment to under 100 miles, though this distance will vary according to weather and atmospheric conditions.

The very-high-temperature reactor, or high-temperature gas-cooled reactor, is a Generation IV nuclear reactor concept that uses a graphite moderator with a once-through uranium fuel cycle.

Tankers in the 250,000 to 300,000 tonnes deadweight range were first introduced in the mid-1960s.

The ship has a total of 15 cargo oil tanks: five centre oil tanks and five pairs of side cargo tanks, with a combined capacity of 336,032m3.

A power-driven vessel which, because of her draught in relation to the available depth and width of the navigable water, is severely restricted in her ability to deviate from the course she is following, (COLREG).

The term ”vessel engaged in fishing” means any vessel fishing with nets, lines, trawls or other fishing apparatus...

The term “vessel not under command” means a vessel which through some exceptional circumstance is unable to manoeuvre and is therefore unable to keep out of the way of another vessel, (COLREG).

A vessel which due to the nature of her work is restricted in her ability to manoeuvre and is therefore unable to keep out of the way of another vessel.

Excessive vibration of ship structures and equipment can be a serious problem and lead to failure of the propulsion system, structural failures of the primary structure and damage to shipboard equipment.

A device fitted to an engine crankshaft to suppress or reduce the stresses resulting from torsional vibration.

The evaluation of vibration on board the ship shall be based on the results of measurements carried out under the following conditions...

A system provided to verify the officer of the watch alertness.

The double-ended ferry DOKTOR WAGEMAKER carries 1750 passengers on the 20 minutes crossing.

In the event of an emergency at sea where there is a need to abandon ship, every second counts and rapid evacuation is a must.

Virtual net metering also called peer-to-peer is a method of producing power to the grid where sellers can generate their own energy in dwellings, offices and factories, and share it with each other locally.

A virtual power plant is a cloud-based distributed power plant that aggregates the capacities of heterogeneous distributed energy resources for the purposes of enhancing power generation, as well as trading or selling power on the electricity market.