The purpose of DC generator brushes is to ().
A、neutralize armature reaction
B、conduct electric current to an outside circuit
C、convert DC current to AC current
D、provide excitation to a DC generator
A、neutralize armature reaction
B、conduct electric current to an outside circuit
C、convert DC current to AC current
D、provide excitation to a DC generator
A、change AC to DCcurrent B、change DC to AC current C、neutralize a armature reaction D、carry current to the outside circuit
A、containers are classified as general purpose (dry cargo) container and specific purpose container B、general purpose container (GP) is suitable for the widest varieties of cargo C、specific purpose container is suitable for the specific cargo D、bulk container, reefer container, open-top container are all general purpose containers
A、containers are classified as general purpose (dry cargo) container and specific purpose container B、general purpose container (GP) is suitable for the widest varieties of cargo C、specific purpose container is suitable for the specific cargo D、bulk container, reefer container, open-top container are all general purpose containers
A、the purpose of trimming B、the approval for ballast C、the purpose of voyage D、the approval for operation
A、A. Restart DC1 by using the installation CD-ROM. Reinstall the operating system and restore the contents of the latest full backup by using the Restore wizard. Restart DC1. B、B. Restart DC1 by using the installation CD-ROM. Restore the contents of Backup1.bkf by using the ASR disk. Restart DC1. C、C. Restart DC1 by using the bootable floppy disk. Copy the contents of Backup1.bkf from the backup media to C:\winnt. Restart DC1. D、D. Restart DC1 by using the bootable floppy disk. Copy the contents of the ASR disk to C:\. Restart DC1.
A、A.speed of the prime mover B、B.AC excitation to the field C、C.DC excitation to the field D、D.DC excitation of the voltage regulator
A、reduce the turbocharger operating temperature B、increase the pressure of the inlet air C、increase the density of the inter air D、reduce the blower operating temperature