Maintenance Officer Interview Questions and Answers for Freshers

Various types of lubricants are used depending on the equipment and application.

• Mineral oil-based lubricants

• Synthetic lubricants

• Biodegradable lubricants

• Greases

• Penetrating lubricants

• Dry lubricants

• Solid lubricants

• Multipurpose lubricants

• Food-grade lubricants

Refrigeration tones refer to the sound produced by a refrigeration system during operation.

• Refrigeration tones can vary depending on the type of refrigeration system and its components.

• Common tones include humming, buzzing, and clicking.

• Unusual or loud tones may indicate a problem with the system that requires maintenance or repair.

• Regular maintenance can help prevent excessive or unusual refrigeration tones.

• Examples of refrigeration systems include air conditioning units, re...read more