Describe the purpose(s) of the solder mask layer.
What will be an ideal response?
The solder mask controls or indicates where the solder will be placed on the printed circuit board pads during a process called wave soldering. This solder will only connect the components to the solder pads. When making only one or two boards with a simple design a solder mask may not be needed. Additionally, the solder mask adds corrosion protection to the printed circuit board traces.
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Temperatures from 500 to 1,200°F with pressures from 700 to 2,500 psi are considered _____.
a. low temperature, high pressure b. high temperature, high pressure c. high temperature, low pressure d. low temperature, low pressure
An automobile traveled 5,567.8 km and used 143.5 L of fuel. How many kilometers was the auto able to travel on each liter?
Fill in the blank(s) with the appropriate word(s).
What should you check before deciding to buy an indoor plant that you have selected?
What will be an ideal response?
Some open-loop automatic control systems are self-regulating.
Answer the following statement true (T) or false (F)