35. 螺槳的推力傳到推力軸承座，再由推力軸承座傳到何處再傳到船殼，使船舶得以前進？ (A) 推力軸承塊 (B) 中間軸承 (C) 機座 (D) 傳動齒輪

4. Potassium chromate is produced by the reaction of solid chromite ore $(\mathrm{FeCr_2O_4})$ with solid potassium carbonate and gaseous oxygen at high temperatures. The other products of the reaction are solid iron(III) oxide and gaseous carbon dioxide. In a particular experiment $169~\mathrm{kg}$ of chromite ore, $298~\mathrm{kg}$ of potassium carbonate, and $150~\mathrm{kg}$ of oxygen were sealed in a reaction vessel and reacted at a high temperature. a FeCr₂O₄ (s) + b K₂CO₃ (s) + c O₂ (g) → d K₂CrO₄ (s) + e Fe₂O₃ (s) + f CO₂ (g) Which compound is the limiting reagent? (A) O₂ (B) K₂CO₃ (C) K₂CrO₄ (D) Fe₂O₃ (E) FeCr₂O₄

35. 螺槳的推力傳到推力軸承座，再由推力軸承座傳到何處再傳到船殼，使船舶得以前進？
(A) 推力軸承塊
(B) 中間軸承
(C) 機座
(D) 傳動齒輪

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