Final answer:
The statement is False. Regulators that creep excessively or beyond the safe working pressure should not be used until they are repaired. (option B)
Step-by-step explanation:
The statement is False. Regulators that creep excessively or beyond the safe working pressure should not be used until they are repaired. Creep refers to the gradual deformation of a material under constant stress. In the case of regulators, excessive creep can lead to failure or malfunction, which can result in dangerous situations.
For example, if a pressure regulator is designed to handle a maximum pressure of 100 psi, but it creeps and allows the pressure to go beyond that, it could cause damage to the system or even cause an explosion in extreme cases. Therefore, it is crucial to repair regulators that exhibit excessive creep before using them.
Using regulators that have excessive creep or do not maintain pressure within safe limits can result in unsafe conditions, leading to equipment failure or safety hazards. Therefore, such regulators should be taken out of service immediately and repaired or replaced by qualified personnel before being used again.