题目内容

Which property of a liquid describes its resistance to flow?

A. Plasticity
B. Viscosity
C. Elasticity
D. Incompressibility

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If an item floats on water it has ------------------- density than water.

A. Higher
B. Lower
C. The Same
D. None of the above

What is the SI unit of pressure?

A. Newton (N)
B. Watts (W)
C. Pascal (Pa)
D. Kelvin (K)

Pressure is the ratio of ------ to ---------- .

A. Length, area
B. Force, area
C. Area, temperature
D. Temperature, force

The specific gravity of a fluid, designated as SG, is defined as the ratio of the density of the fluid to the density of water at some specified temperature. And SG has a unit of

A. Slugs/𝑓𝑡3
B. Kg/𝑚3.
C. Slugs/in3
D. Has no unit