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Opposite-facing elbows create an “S” bend. Option B is correct. MASS spatial ability items mirror pipefitting visualization, vital in plant maintenance.

The rule sets two conditions: regular checks every shift and mandatory shutdown if unsafe pressure is detected. Option B is correct. MASS comprehension emphasizes interpreting operational and emergency instructions.

Gear ratio = 40:20 = 2:1. The driven gear rotates twice as fast, so 100 × 2 = 200 RPM. Option C is correct. MASS mechanical concepts often test speed relationships in gears. Recognizing these ratios is crucial when diagnosing machinery performance.

Crossed belts reverse rotation. Therefore, the driven gear rotates counterclockwise. Option B is correct. MASS mechanical items test recognition of direction changes in belts, critical for diagnosing machinery operation.

Energy = Power × Time = 2.4 × 12 = 28.8 kWh ≈ 29 kWh. Closest match is D (30.0 kWh). MASS math items test unit-based reasoning.