____ is a bonding, shearing, and tearing away of material from two contacting or sliding metals.
A. Spalling
B. Galling
C. Stripping
D. Gouging
Answer: B
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What type of switches operate on the principle that if a current is allowed to flow through thin conducting material exposed to a magnetic field, a voltage is produced?
What will be an ideal response?
What can cause the supply voltage to a system to drop below the minimum voltage when the unit is operated?
A) The system may be low on refrigerant, causing a high amp draw as the compressor struggles to cool the structure. B) A dirty air filter may be causing a high evaporator fan motor amp draw. C) Power wire is too small or poor connections at either end of the power wire D) This is normal. The minimum voltage only refers to the voltage with the unit off.
Many electric cooling fans are ultimately controlled by what device?
What will be an ideal response?
If 
and both are based on the same representation time and 
can be written in the form 
Find the numerical values of A , a, b, c and d.