Experience the Quality With Free MASS Exam Questions That Helps Candidates Pass

Energy = Power × Time = 5 × 3 = 15 kWh. Option C is correct. MASS math items reinforce unit conversion, vital in monitoring plant power use.

This is a dilution problem, common in MASS Mathematical Usage. The formula is C1V1 = C2V2. Here: (10%)(40) = (5%)(V2). Solving: 400 = 0.05V2 → V2 = 80 liters. Since we start with 40 liters, water to add = 80 − 40 = 40 liters. Option B is correct. This mirrors real-world tasks where technicians must adjust chemical concentrations in boilers or cooling systems. Such problems reinforce unit conversions, proportional reasoning, and logical setup. MASS emphasizes simple but practical calculations under time pressure.

Gear ratio = 20:60 = 1:3. Driven gear = 180 ÷ 3 = 60 RPM. Option B is correct. MASS gear problems test understanding of ratios and motion transfer in machinery.

The instruction clearly requires full isolation from all listed energy sources. Option B is correct. MASS comprehension emphasizes correct recognition of multiple requirements in safety text.

Mechanical advantage = 6 ÷ 2 = 3. Effort = 300 ÷ 3 = 100 lbs. Option C is correct. MASS lever problems test understanding of ratios, important for tool use in heavy maintenance work.