The hydraulic tubing installation shown as figure "D" is INCORRECT and will probably leak when in operation because the tubing __________. GS-0065

Correct Answer: Option C — and its fittings cannot be properly installed and tightened

Hydraulic tubing must be installed with sufficient slack or bends to allow for thermal expansion and vibration. If tubing is installed in a rigid, straight line between two fixed points, the fittings cannot be properly aligned or tightened, leading to mechanical stress, fatigue, and inevitable leakage at the connections.