One Question per Day on Synthetic Ammonia (Series 21)

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This post was last edited by penghh1985 on 2016-2-26 07:45. Multiple-choice question (fill in the correct option in the brackets). Continuing from Series 20: 101. (B-B-001) The ( ) of fluid inside a pipe represents the concentrated manifestation of pipeline resistance. (A) Temperature (B) Pressure (C) Pressure drop (D) Flow rate 102. (B-B-001) – ΔP = λ²L/α·Pu²/2; what goes in the parentheses is ( ). (A) Reynolds number (B) Prandtl number (C) friction factor (D) correction factor 103. (B-B-001) If the flow rate in the pipe doubles while the flow pattern remains unchanged, the flow resistance will be ( ) times the original value. (A) 2 (B) 1 (C) 1/2 (D) 4 104. (B-B-002) To synthesize 1,000 kg of NH3, theoretically how much H2 is required per NM3? (A) 2,000 (B) 1,000 (C) 1,976 (D) 1,500 105. (B-B-002) How many kilograms of CaO can be obtained by calcining 500 kg of CaCO3? (A) 560 (B) 280 (C) 140 (D) 1120 DCACB Scoring criteria: 3 points for participation, 8 points for a completely correct answer.