List the six components commonly used in growing media and provide the function of each
What will be an ideal response?
Peat moss, wood by-products, bark, and vermiculite—provide high moisture- and
nutrient-holding capacity.
Sand and perlite—provide aeration and drainage.
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Increasing rake decreases trail.
Answer the following statement true (T) or false (F)
Technician A says that an electronic throttle control uses a stepper motor. Technician B says that an electronic throttle control uses a vacuum controlled stepper motor to keep the throttle at a 16%-20% throttle opening. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Unlike other types of systems, geothermal systems do not lose capacity as the air temperature drops because:
A) They extract water from the ground, which is at a variable temperature. B) They extract heat from the ground, which is at a stable temperature. C) They extract air from the ground, which is at a variable temperature. D) They extract air from the ground, which is at a stable temperature.
Reserve capacity is the number of minutes a battery can produce 10.5 volts with how many amps?
A) 20 B) 10 C) 25 D) 30