1. Which of the following is false? a) The density of water is dependent on temperature b) The mass of objects on the moon is the same as they are on earth c) The specific weights of objects on the moon are the same as they are on earth. d) The density of water is greatest at 4°C. e) Kinematic viscosity is found by dividing the absolute viscosity by the mass density at the same temperature
1. Which of the following is false? a) The density of water is dependent on temperature b) The mass of objects on the moon is the same as they are on earth c) The specific weights of objects on the moon are the same as they are on earth. d) The density of water is greatest at 4°C. e) Kinematic viscosity is found by dividing the absolute viscosity by the mass density at the same temperature
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. Which of the following is false?
a) The density of water is dependent on temperature
b) The mass of objects on the moon is the same as they are on earth
c) The specific weights of objects on the moon are the same as they are on earth.
d) The density of water is greatest at 4°C.
e) Kinematic viscosity is found by dividing the absolute viscosity by the mass density at the
same temperature
2. Which of the following is not essential to find shear stress?
a) The surface tension of the water
b) The velocity difference between adjacent layers
c) The distance between adjacent layers
d) The temperature of the water
e) (a) and (d)
3. Equal pressure surfaces in a static fluid in a vessel must:
a) have the same elevation
b) be in the same fluid
c) be interconnected
d) (a), (b), and (c)
e) None of the above
4. Which of the following is false? The friction factors
a) in laminar flow depends on Reynold's number
b) in turbulent flow depends on both Reynold's number and relative roughness.
c) in all flow regimes depend on the velocity of the flow
d) in a complete turbulent flow regime does not depend on Reynold's number
e) None of the above
5. Which of the following is false?
a) Gage pressure can be defined as the pressure measured above atmospheric pressure
b) At a given depth, hydrostatic pressure will act equally in all direction
c) The location of the centroid of a submerged plane area and the location where the
resultant pressure force acts on that area are identical.
d) Velocity head is vital to compute minor losses
e) The Buoyant force on a submerged object is equal to the weight of the water displaced.
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