After drying to eliminate the water in plant litter, which two elements account for about 80% of the dry weight?
A) Ca and C B) N and S C) C and H D) N and C E) C and O
E
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Explain what an addendum is and when it is used.
What will be an ideal response?
Identification numbers in assembly prints are generally placed ____.
A. in the margin B. in balloons C. in the parts list D. in the title block E. none of the above
Which of the following statements regarding mechanical-draft cooling towers is correct?
A) Only one fan is required for an induced-draft counterflow tower. B) Cross flow cooling towers may be used for indoor applications. C) Counterflow towers are shorter and wider than crossflow towers. D) Three fans are required for a forced-draft crossflow cooling tower.
Five masons work a total of 1,225 hours on a job. Each works 7 hours per day, 5 days per week. How many weeks does each mason work?
What will be an ideal response?