CIVL 321 Exam 1 Review

Density=

• mass/length

• weight/volume

• volume/time

• mass/volume

Density of water @ standard conditions for both English and Metric Units:

• 62.4 lb/ft^3 and 9.81 kN/m^3

• 1.94 slugs/ft^3 and 999 kg/m^3

• 1.94 slugs/ft^3 and 999 kN/m^3

• 1.94 lb/ft^3 and 9.81 KN/m^3

Specific Weight =

• Density * Gravity

• Volume * Gravity

• Pressure * Area

• none of the above

Specific weight of water @ standard conditions for both English and Metric units

• 64lb/ft^3 and 9.81kN/m^3

• 62.4lb/ft^3 and 1030kg/m^3

• 1.94lb/ft^3 and 999kg/m^3

• 62.4lb/ft^3 and 9.81kN/m^3

Specific Gravity (S.G.) = density of a fluid divided by density of water OR specific weight of a fluid divided by specific weight of water

• True

• False

Hydrostatic Pressure is dependent on Specific Weight and Depth NOT Volume

• True

• False

Which equation would you be most likely to use to solve a manometer problem?

• P_f = P_i ± Ɣ*(h)

• P_f = P_i ± (S.G.)*(Ɣ_H20)*(h)

• P_f = P_i ± ρ*g*(h)

• all of the above

Gage pressure is measured relative to the surrounding atmospheric pressure, thus can be less than 0

• True

• False

What does P_c represent in the following equation: F = P_c * A

• pressure located at the centroid of pressure prism

• total pressure

• pressure located at the centroid of planar object (e.g. gate or wall)

• none of the above

P_c = ρ * h_c

• True

• False