One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 516
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Fill-in-the-blank questions: Before starting a centrifugal pump, the items that should be checked on the motor include the grounding wire ( ), the foot bolts ( ), and all exposed rotating parts must have ( ). Answer: Connected to the grounding grid ； Intact and secure ； Shield.
Intact, properly secured, protective cover
Before starting a centrifugal pump, the items that should be checked on the motor include the grounding wire (properly grounded), the foot bolts (), and all exposed rotating parts should have () in place
Intact, securely fastened, protective cover
Intact, securely fastened, protective cover
Before starting the water pump, it is necessary to check that the motor’s grounding wire is in good condition and that the foot screws are properly tightened; exposed rotating parts should be covered with protective guards
Intact; firmly secured; protective cover
Before starting a centrifugal pump, the motor should be checked for items including the grounding wire (intact and undamaged), the foundation bolts (properly tightened), and protective covers on all exposed rotating parts.
Before starting the pump, check that the motor’s grounding wire is in good condition, that the foot screws are properly tightened, and that any exposed rotating parts are covered with protective guards
Intact, securely fastened; protective cover