5TH Engineer Interview Questions and Answers

Safety precautions for entering enclosed spaces

• Obtain permission and follow procedures

• Test atmosphere for oxygen, flammability, and toxicity

• Use proper personal protective equipment

• Have a standby person outside the space

• Use adequate lighting and ventilation

• Avoid smoking or open flames

• Be aware of potential hazards such as machinery or chemicals

• Communicate regularly with the standby person

• Have a rescue plan in place

• Attend regular training on enclosed space entry

Refrigeration system works by removing heat from a space and transferring it to another location.

• The system uses a refrigerant to absorb heat from the space to be cooled

• The refrigerant is then compressed, which increases its temperature

• The hot refrigerant then releases the heat to the outside environment

• The refrigerant is then expanded, which causes it to cool down

• The cool refrigerant then absorbs more heat from the space to be cooled

• This cycle repeats to maintain the desired...read more