ONTARIO OIT EXAMINATION TEST 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 1 L/s. Answer: 86.4 m³/d
◉ 1 m³. Answer: 1,000 L
◉ Detention Time (hrs). Answer: Tank Volume (m³) ÷ Flow (m³/hr)
◉ Mass (kg/d). Answer: Q (m³/d) × C (mg/L) ÷ 1,000
◉ Mass. Answer: Q (MGD) × C (mg/L) × 8.34
◉ % Removal. Answer: (Influent - Effluent) ÷ Influent × 100
◉ Dose (mg/L). Answer: Demand + Residual
◉ CT (mg·min/L). Answer: Residual (mg/L) × Contact Time (min)
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 1 L/s. Answer: 86.4 m³/d
◉ 1 m³. Answer: 1,000 L
◉ Detention Time (hrs). Answer: Tank Volume (m³) ÷ Flow (m³/hr)
◉ Mass (kg/d). Answer: Q (m³/d) × C (mg/L) ÷ 1,000
◉ Mass. Answer: Q (MGD) × C (mg/L) × 8.34
◉ % Removal. Answer: (Influent - Effluent) ÷ Influent × 100
◉ Dose (mg/L). Answer: Demand + Residual
◉ CT (mg·min/L). Answer: Residual (mg/L) × Contact Time (min)