A map created from photographs of the earth's surface describes ___________________
Fill in the blank(s) with correct word
Photogrammetry
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The impeller design on a centrifugal pump is available in all the following designs except:
a. inlet vane tip b. open c. closed d. semi-open
The foundation of all agriculture is growing plants
Indicate whether the statement is true or false.
A welding symbol has a circle on the reference line with its center at the intersection of the reference line and leader line. Another circle has its center at the middle of the reference line. Next to this circle is the notation "40". A vertical line starts at the center of the first circle and is drawn upwards, and a small filled in equilateral triangle is attached to the top with one side on the vertical line. What does this welding symbol signify?
A. A weld is to be made all around. The kind of weld is not specified. The weld will have a minimum shear strength of 40 pounds per linear inch of weld. B. 40 spot welds are to be made all around in the field. C. 40 welds are to be made all around. The weld will have a minimum shear strength of 40 pounds per linear inch of weld. D. A weld is to be made all around in the field. The weld will have a minimum shear strength of 40 pounds per linear inch of weld. E. None of the above. This is an incorrect symbol.
How do you reverse the direction of a dc series-wound or shunt-wound motor?
What will be an ideal response?