List four general requirements and safe practices for concrete work
What will be an ideal response?
• Before any type of load can be placed on a concrete structure or any concrete portion of a structure, an individual qualified in the field of structural design must determine that the structure or the portion of a structure being used can support the load.
• Workers involved in trying or placing reinforcing steel at heights of 6 feet or more above any working surface must wear the appropriate fall protection devices.
• Protruding reinforcing bars must be guarded to prevent impalement if a worker falls on one.
• When reinforcing strands are tensioned at the job site, workers should not be allowed behind the jack during the tensioning process.
• Concrete buckets must be equipped with safety latches to prevent accidental or premature dumping.
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Getting the parts of an assembly properly positioned may take more time than it takes to do the welding.
Answer the following statement true (T) or false (F)
If the heater in a fixed IEC bimetallic overload relay fails, _____.
a. the heater must be replaced with a heater of the same size b. it and all the other heaters in the overload relay must be replaced c. the entire overload relay must be replaced d. the heater can be replaced with a heater of the same size or one that is slightly smaller
You need to de-energize a circuit to work on a unit. To ensure your safety, you should:
A) Leave a clearly written"Keep Off" message in 1" block letters. B) Lock out and tag out the circuit. C) Ask a friend to stand beside the disconnect switch to ensure nobody turns it on. D) Work quickly to reduce your exposure to the electricity.
Give two possible causes for a thermoformed part sticking to the mold
What will be an ideal response?