The standards for grading ready-to-cook poultry are found in the _____ Poultry Grading Manual.
Fill in the blank(s) with the appropriate word(s).
USDA
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When batteries or cells are connected in ___________ the voltage remains the same and the Amp-hour capacities add.
Fill in the blank(s) with the appropriate word(s).
During or following an evacuation, which of the following typically indicates a refrigerant circuit has a leak?
a. The vacuum gauge drops rapidly to 500 microns and will not go lower. b. The vacuum gauge shows a pressure rise that continues up to 0 psig when the pump is isolated. c. The vacuum gauge shows a pressure rise but levels off between 1,000 and 2,000 microns when the pump is isolated. d. A con
A dc, separately excited motor is used in a forklift. The motor is driven by a full- wave, ac/dc converter. The voltage on the ac side is 120 V (rms). The field constant of the motor K? = 3 Vs. The armature current is continuous under the loading conditions. At a load torque of 300 Nm and triggering angle of 40o , the motor speed is 100 rpm.
a. Calculate the triggering angle required to block (stop) the motor. b. Calculate the average voltage across the motor terminals if the triggering angle increases to 120°. c. Calculate the new speed of the motor at the condition described in part (b). d. Sketch the speed-torque characteristics and show all the operating conditions.
For t < 0, the circuit shown in Figure P5.34 is at steady state. The switch is thrown at t = 0. Assume:
VS1 = 17V VS2 = 11V
R1 = 14 k? R2 = 13 k?
R3 = 14 k? C = 70 nF
Determine the
a. Current iC through the capacitor for t > 0.
b. Voltage v3 across R3 for t > 0.
c. Time required for iC and v3 to change by 98 percent of their initial values at t = 0+.
