CDL Class B Pre Trip Inspection Practice Exam

The correct fluid color indicating a proper power steering fluid status is green. Power steering fluid typically appears in a bright green color when it is fresh and has not been contaminated. This indicates that the fluid is at an optimal level and is functioning effectively to assist with the steering mechanisms of the vehicle.

Other colors can indicate potential issues. Brown usually signifies that the fluid has been exposed to heat and may be old or contaminated, which could compromise the performance of the power steering system. Blue may be a color seen in some specialized fluids, but it does not generally suggest a standard condition for power steering fluid. Clear could indicate that the fluid is either very old or diluted and may not perform effectively, as many fluids develop a color over time.

Maintaining the proper color and condition of the power steering fluid is essential for safe vehicle operation, as it directly affects steering performance and control.