Organic farmers have learned that insect pests can be discouraged by treating crops with which of the
following?
a. pepper and garlic sprays
b. dried marigold flowers
c. organic chemicals
d. sweet anise and vanilla extract spray
A
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A section of the boiler utilized to preheat feed water before it enters the main boiler system.
a. convection section b. economizer section c. radiant tube section d. shockbank
Why do closed hydronic systems include pressure-relief valves, expansion tanks, and temperature and pressure-limiting devices?
A) Because building codes require certain controls on every system B) Because the copper piping used in the system requires these measures C) Because freezing must be prevented and antifreeze may not be added D) Because water expands and contracts as its temperature changes
Which of the following statements is true about sales and operations planning?
A) It has no effect on inventory levels. B) It is usually updated on a monthly basis. C) It includes only the marketing and production plans. D) It provides a means of updating the material requirements plan.
Framing to ________ inch centers requires in-line framing techniques
A) 16 B) 32 C) 24 D) 12