For testing samples taken from truck mixers, the concrete discharge rate should be regulated by _____.
a. the size of the discharge gate opening
b. fluidity of the mix
c. the capacity of the sampling container
d. the rate of drum rotation
d. the rate of drum rotation
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Describe the object in the accompanying figure.
What will be an ideal response?
What is specific humidity?
A) The weight of water in each pound of dry air, measured in grains B) The humidity level required for a particular application C) The relative humidity for any particular air sample D) The amount of water in the air compared to the amount of water the air could hold
Which ratio represents the lowest gear ratio?
A. 4:1 B. 2.73:1 C. 2:1 D. 1:1
An ellipse is formed from a cone by passing a plane through the cone:
A. parallel to the base B. perpendicular to the base C. at an angle to the cone D. along the edge of the cone