Which of the following do not reflect the realities of instability in agriculture:
a. Moderate sized farms are the least affected because they are generally diversified.
b. Instability has its roots in a highly inelastic supply and demand.
c. Farm programs generally are designed to reduce instability.
d. Instability results in net farm income being more volatile than gross income.
e. The 1996 farm bill increased instability.
a
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Voltage is defined as the _____.
a. force that causes electrons to flow b. opposition to current flow c. basic unit in which current is measured d. current flowing through a conductor
An industrial robot performs a machine loading and unloading operation. A PLC is used as the robot cell controller. The cell operates as follows: (1) a human worker places a work part into a nest; (2) the robot reaches over and picks up the part and places it into an induction heating coil; (3) a time of 10 seconds is allowed for the heating operation; and (4) the robot reaches in and retrieves the part and places it on an outgoing conveyor. A limit switch X1 (normally open) will be used in the nest to indicate part presence in step (1). Output contact Y1 will be used to signal the robot to execute step (2) of the work cycle. This is an output contact for the PLC, but an input interlock for the robot controller. Timer T1 will be used to provide the 10 second delay in step (3). Output
contact Y2 will be used to signal the robot to execute step (4). Construct the ladder logic diagram for the system. Write the low level language statements for the system. What will be an ideal response?
As the human-companion animal bond grows stronger, pets are being treated more and more like family members
A. True B. False
What might be the problem if there are carbon deposits on the refractory?
A) defective relay protector B) defective nozzle C) improper heat anticipator setting D) cracked heat exchanger