When transmitted by a reduction gear, diesel engine speed is reduced and the torque available for work ()
A、remains the same
B、is reduced
C、is increased
D、is eliminated
A、remains the same
B、is reduced
C、is increased
D、is eliminated
A、transmit distress signal B、send response signal C、transmit the signal of ship‟s position D、be start by X-band radar
A、A.transmit distress signal B、B.send response signal C、C.transmit the signal of ship’s position D、D.be started by X-band radar
A、A.transmit distress signal B、B.send response signal C、C.transmit the signal of ship‟s position D、D.be interrogated by X-band radar
A、Locating signals are transmitted by survival craft VHF transceivers B、Locating signals are transmitted by SARTs C、Locating signals are intended to facilitate the finding of a distressed vessel or its survivors D、Locating signals are not transmitted by autoalarm generators
A、be transmitted at once though the frequency is not clear B、be transmitted as soon as the frequency is cleared coordinately C、be transmitted at its scheduled transmissions D、be transmitted at next scheduled transmissions
A、A. Each device on the Ethernet segment stops transmitting for a short time. B、B. A jam signal informs all devices that a collision occurred. C、C. When data transmission resumes, the devices that were involved in the collision have priority to transmit. D、D. The devices that are involved in the collision stops transmitting for a short time. E、E. The collision invokes a random back-off algorithm.
A、when they receive a special token B、when there is a carrier C、when they detect no other devices are sending D、when the medium is idle E、when the server grants access
A、when they receive a special token B、when there is a carrier C、when they detect no other devices are sending D、when the medium is idle E、when the server grants access
A、when they receive a special token B、when there is a carrier C、when they detect no other devices are sending D、when the medium is idle E、when the server grants access