Toprotecttherotorofamotordisassembledformaintenanceoroverhaul,itshouldbe()
A. suspendedbywireslingsinonecomeroftheshop
B. wrappedinseverallayersofheavypaperorcarboard
C. supportedbyflatwoodblocksontheworkbench
D. returnedtotheframeassoonasthebearingsareremoved
Electricalpowerisexpressedin()
A. ohms
B. volts
C. amps
D. watts
Accidentalgroundsinashipboardelectricalsystemmustberepairedassoonaspossibleastheywill()
A. resultinimmediatepoweroutages
B. damagecircuitbreakers
C. appearonthegrounddetectionsystem
D. damageinsulationandmaycauseoutages
TPO原则中的时间原则是着装是务必斟酌的,你以为下面哪种不属于时间原则()。
A. 适合时期的要求
B. 适合季节的更替
C. 适合不同的场合
D. 适合不同的年龄阶段