化工原理（1）（全英文）章节测试课后答案2024春

第一章测试

1.Gas is a compressible fluid. 气体是一种可压缩性的流体。( )
A:错 B:对
答案:B
2.When the absolute pressure of the measured fluid is greater than the external atmospheric pressure, the pressure gauges used are called. 当被测流体的绝对压强大于外界大气压强时，所用的测压仪表称为。（ ）
A:Liquid Level Meter液位计 B:Vacuum gauge真空表 C:Manometer压强表 D:Speedometer速度表
答案:C
3.The reading of the vacuum gauge indicates the quantity that the absolute pressure of the measured fluid is lower than the atmospheric pressure, which is called. 真空表上的读数表示被测流体的绝对压强低于绝对压强的读数，称为.（ ）。
A:Relative pressure相对压强 B:Vacuum degree真空度 C:Gauge pressure表压强
答案:B
4.18660 Pa equals to _________mmHg? 18660Pa等于多少mmHg? ( )
A:500mmHg B:100mmHg C:700mmHg D:140mmHg
答案:D
5.Pressure can be expressed by absolute pressure, gauge pressure and vacuum gauge, if the reading of vacuum gauge in the equipment is 100 mmHg, try to calculate the absolute pressure. Given that the atmospheric pressure in this area is 740mmHg, then what is the absolute pressure？压强可以表示为绝对压强、表压和真空度，某设备真空表的读数是100 mmHg ，假设当地大气压为740 mmHg，那它的绝对压强是多少？( )
A:200 mmHg B:840 mmHg C:500 mmHg D:640 mmHg
答案:D