2024知到答案 工程流体力学（山东大学） 完整智慧树网课章节测试答案
第一章 单元测试
1、单选题：
Examples of primary quantities are which of the following?（ ）。
选项：
A:None.
B:Length, Time, Mass, and Temperature
C:Size, Density, and Texture
D:Length, Mass, and Chemical Structure
答案: 【Length, Time, Mass, and Temperature】
2、单选题：
Which of the following selections are all British Gravitational System units?（ ）。
选项：
A:foot, liter, Kelvin, Celsius, and pound
B:foot, pound, Newton, gallon
C:foot, second, pound, Rankin, and slug
D:foot, minute, liter, Celsius, and kg
答案: 【foot, second, pound, Rankin, and slug】
3、单选题：
Specific volume is the reciprocal of what measurement?（ ）。
选项：
A:mass
B:volume
C:density
D:gravity
答案: 【density】
4、单选题：
How can the absolute pressure be found by using the gage pressure?（ ）。
选项：
A:by adding the gage pressure and the atmospheric pressure
B:can not
C:by using the equation P = ρRT
D:by subtracting the atmospheric pressure from the gage pressure
答案: 【by adding the gage pressure and the atmospheric pressure】
5、单选题：
Fluids for which the shearing stress is not linearly related to the rate of shearing strain are designated as what?（ ）。
选项：
A:non-Newtonian fluid
B:viscous fluids
C:Newtonian fluid
D:None
答案: 【non-Newtonian fluid】
第二章 单元测试
1、单选题：
For a body partially submerged in a fluid and at equilibrium, which of the following is a true statement?（ ）。
选项：
A:The specific gravity of the body is greater than the specific gravity of the fluid
B:The weight of the body is less than the weight of the volume of fluid displaced
C:The weight of the body is greater than the weight of the volume of fluid displaced
D:The weight of the body is equal to the weight of the volume of fluid displaced
答案: 【The weight of the body is equal to the weight of the volume of fluid displaced】
2、单选题：
An inclined-tube manometer is being used as shown to measure the pressure in a pressurized tank. The tank is partially filled to a depth of 20 cm with a fluid of specific gravity = 0.78. The specific gravity of the manometric gage fluid is 3.5. The gage pressure in the headspace (kPa) when h = 8 cm is most nearly（ ）。
选项：
A:1.2
B:0.9
C:1.8
D:0.3
答案: 【0.3】
3、单选题：
A clean glass tube is to be selected in the design of a manometer to measure the pressure of kerosene. Specific gravity of kerosene = 0.82 and surface tension of kerosene = 0.025 N/m. If the capillary rise is to be limited to 1 mm, the smallest diameter (cm) of the glass tube should be most nearly（ ）。
选项：
A:1.25
B:1.75
C:2.00
D:1.50
答案: 【1.25】
4、单选题：
The figure shows two cylinders of diameter D and 2D, connected to each other and containing an incompressible fluid. The two cylinders are fitted with leak-proof pistons of weight W1 and W2 as shown. Which of the following is a correct expression?（ ）。
选项：
A:
＝
B:
=
C:
=
D:
=
答案: 【=
】
5、单选题：
The figure shows the relationship between shear stress and velocity gradient for two fluids, A and B. Which of the following is a true statement?（ ）。
选项：
A:Absolute viscosity of A is greater than that of B
B:Kinematic viscosity of A is greater than that of B
C:Kinematic viscosity of A is less than that of B
D:Absolute viscosity of A is less than that of B
答案: 【Absolute viscosity of A is greater than that of B】