Answer the following statements true (T) or false (F)
1 A gravimetric feeder conveys material at a controlled rate by running at a set motor speed.
2 A volumetric feeder must have a predetermined maximum feed rate that is calculated by the feeder’s maximum motor speed and material density.
3 A trickle valve is a free-hanging flap between two different pressure environments and maintains an air seal inside a flow area.
4 Flare systems are most often used during emergency situations and unit start-ups and shutdowns to dispose of gases rapidly.
5 "Landfills allow contaminants to leach into the soil to complete their for proper decomposition."
6 A cement truck is an example of a drum mixer.
1 False. Gravimetric feeders are devices designed to convey material at a controlled rate by measuring the weight lost over time.
2 True.
3 True.
4 True.
5 False. Landfills that are not lined properly or that have leaking liners allow contaminants to leach into the soil and eventually into the groundwater.
6 True.
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When a material is subjected to a change in ____, it may expand, contract, conduct, or reflect heat.
A. ductility B. strength C. permeability D. temperature
A four-times scale print is often noted as:
a. 1:1 b. 1:2 c. 4:1 d. 1:4
Measurements should be recorded in field notes _____.
a. as they are taken b. hourly c. whenever there is time to do so d. at the end of the day
To be respected by her employees, the manager must be hardworking and ________ about turf care
Fill in the blank(s) with correct word