When pruning, removal of some ____ allows remaining leaders to establish as central leaders,
improving plant aesthetics in the long term.
a. initial leaders c. ungainly shoots
b. codominant leaders d. ungainly foliage
B
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Which type of insect has mouth parts that scrape off cells and particles from a plant's surface, and suck the pieces into its mouth?
a. Siphoning c. Chewing and lapping b. Piercing and sucking d. Rasping and sucking
Technician A says that valve lash can be adjusted on a cylinder that is at TDC and on the compression stroke. Technician B says that feeler gauges are used when adjusting hydraulic lifters. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Why is a vacuum line attached to a fuel-pressure regulator on many port-fuel-injected engines?
A) To lower the fuel pressure under heavy engine load conditions to help improve fuel economy
B) To raise the fuel pressure at idle
C) To modulate the fuel pressure
D) To draw fuel back into the intake manifold through the vacuum hose
The most common environmental problems for farmers include all of the following except:
A. dead animal disposal B. odor control C. feed control D. animal waste disposal