Copper wire, air, fiber optic strands, and water are the sources of sound waves that vibrate molecules in a medium
Indicate whether the statement is true or false
FALSE
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?Why would an ingot need to be placed back in a furnace after it has been cast?
A. ?To give it time to outgas all of the impurities before it is made into a plate or pipe. B. ?To make the temperature consistent across the entire ingot. C. ?So that impurities can float out of the ingot making it a better steel. D. ?It is a way of tempering the metal to make it harder.
The output of a gate has an internal short. A current tracer will ________
A) identify the defective gate B) show whether the gate is shorted to Vcc or ground C) be able to identify the defective load node D) probably not be able to locate the problem
What type of A/C system is shown in this diagram?
A) TXV system
B) Vapor system
C) Orifice tube system
D) VAT system
What is the main purpose of simple machines?
What will be an ideal response?