The ratio of on time relative to the period of the complete cycle is the ________
A) Pulse width modulation B) Frequency
C) Amplitude D) Duty cycle
D
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Al seleccionar rodillos para mover una carga, asegúrese de que _____.
a. sean más cortos que el ancho de la carga b. estén hechos de madera blanda, como el pino c. haya al menos dos rodillos debajo de la carga d. sean lo suficientemente largos como para pasar por debajo de la carga por completo
Flexible couplings used between the gearbox and generator for wind turbines include an ________ to prevent bearing and gear damage.
A. shaft seal B. spider C. electrical isolation component D. accumulator
Miyoko has 630 acres of cotton. She treated the soil with 2.3 pints per acre of an herbicide for weed control. The herbicide comes in 21/ /2 -gallon containers at $108.45 per container.
a. How many fluid ounces of the herbicide were applied per acre? b. How many containers of the herbicide were purchased? c. What was the cost of the herbicide?
Which of the following statements is true?
A) Material in the supply chain usually flows from producer to customer. B) The supply chain includes all activities and processes to provide a product or service to a customer. C) The supply chain contains only one supplier. D) All of the above are true. E) A and B only are true.