What percentage of accidents is caused by manual handling, as recorded for 2001/2 under the Manual Handling Operations Regulations (do a search in the HSE website)?

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Fluids at rest possess no flow energy. a)- true b)- false

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan