單項(xiàng)選擇題

The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.

A.bridge control panel
B.disconnect links
C.governor relay box
D.main switchboard

你可能感興趣的試題

A semiconductor is a material with a （）.

A.conductivity higher than a normal conductor
B.conductivity higher than a normal insulator
C.high conductivity at low temperatures
D.low conductivity at high temperatures

單項(xiàng)選擇題

The sub-multiple prefix “micro” means （）.

A.thousandth (10 to the-3rd power)
B.millionth (10 to the-6th power)
C.billionth (10 to the-9th power)
D.trillionth (10 to the-12th power)