Maintenance of Machinery Quiz

Smaller dirt particles are removed from the air by the filter's element. Explain the process.

Excessive back pressure is an indication that a filter needs to be replaced. Discuss the reasons why this might happen.

Read a pressure gauge and determine the maximum reading a specific gauge can measure.

To convert gauge pressure to absolute pressure, add atmospheric pressure to the gauge pressure. Explain this conversion process.

The worst enemy of a hydraulic system is contamination. Describe the effects of contamination on a hydraulic system.

Stainless steel is a common material for tubing in high pressure hydraulic service. Explain why stainless steel is preferred.

If suspended metal products were found in an oil analysis, it would indicate bearing problems. Discuss the implications of this finding.

The primary cause of pump cavitation is the suction line pressure is too low. Explain the causes and effects of pump cavitation.

With increasing temperature, the viscosity of a liquid decreases slightly. Discuss the relationship between temperature and viscosity.

A sight glass in a reservoir usually indicates the level of the fluid. Explain how a sight glass works.