A riser is used, depending on the size of the casting, to allow the excess metal to evacuate from the mold.
Answer the following statement true (T) or false (F)
True
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Define a king valve.
What will be an ideal response?
You purchase an LED with a forward bias voltage of 2V. The manufacturer claims the most efficient current for good brightness and low power loss is 30mA. If using a 5V power supply, what resistance value should you put in series with the diode to achieve the recommended current?
A. 5/30 ? B. 50/3 ? C. 100 ? D. 150 ? E. 500/3 ?
If your sprayer discharges 15 gallons of water while spraying 7,500 feet, what is the application rate per 1,000 square feet?
a. 2 gallons b. 3 gallons c. 4 gallons d. 7.5 gallons
Technician A says that used oil should be collected for recycling. Technician B says that used oil filters may be disposed of as regular solid waste only after an approved draining process. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B