What are screw threads used for?
What will be an ideal response?
Screw threads are used widely (1) to fasten two or more parts securely in position, (2) to transmit power, such as a feed screw, on a machine, (3) to move a scale on an instrument used for precision measurements, and (4) to adjust the alignment of parts.
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Fertilizer should be applied only as needed to keep plants healthy
Indicate whether the statement is true or false
Which of the following is NOT generally used as a grain legume?
a. chickpea c. lupine b. alfalfa d. lentils
A scheduling system that assumes the required capacity will always be available is called:
A) finite scheduling. B) infinite scheduling. C) backward scheduling. D) forward scheduling.
Before starting an oil furnace, the technician should check to see that:
A) The flame-observation door is open for viewing. B) The clean-out doors are open to allow unwanted debris to be blown out during ignition. C) The flame-observation door and all clean-outs are closed. D) The flame-observation door and all clean-outs are open.