题目
Many fine-particled cargoes if possessing a sufficiently high ______ content are liable to flow. Thus any damp or wet cargo containing a proportion of fine particles should be tested for flow characteristics prior to loading.A. weightB. massC. moistureD. pressure
Many fine-particled cargoes if possessing a sufficiently high ______ content are liable to flow. Thus any damp or wet cargo containing a proportion of fine particles should be tested for flow characteristics prior to loading.
A. weight
B. mass
C. moisture
D. pressure
题目解答
答案
C. moisture
解析
本题考查细颗粒货物流动性的成因。关键点在于理解货物因某种物理特性而产生流动性,需结合语境排除干扰项。“damp or wet cargo”(潮湿或湿货)是解题核心提示,直接指向与水分相关的选项。
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选项分析:
- A. weight(重量)、B. mass(质量):重量或质量与货物流动性无直接关系,排除。
- D. pressure(压力):压力通常指外力作用,而非货物本身的属性,非流动性主因,排除。
- C. moisture(水分):潮湿或含水量高的细颗粒货物易因颗粒间润滑作用产生流动性,符合题干中“damp or wet cargo”的提示。
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逻辑验证:
题干强调“测试流动特性前需检测含水量”,进一步印证moisture是关键因素。