Explain how the technologies that we design to satisfy energy needs affect the type and amount of energy resources that we use.
What will be an ideal response?
The technologies that we design determine first and foremost the type of fuel used, if it is an energy consuming technology. The primary design will determine whether electricity, a fossil fuel, or solar energy will power the device, for example. Second, the relative efficiency of the device will affect how much of the fuel is consumed.
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To pass visual inspection prior to preparation for bend testing, which of the following is true of undercut?
A. It must exceed 10% of the base metal. B. It must not exceed 10% of the base metal or 1/32 in., whichever is less. C. It must exceed 10% of the base metal or 1/32 in., whichever is greater. D. It must exceed 1/32 in.
The materials used in strainers and filters to remove particles from hydraulic fluid are called _____
a. fibers b. sifters c. fabrics d. mediums
Typically, which is the first type of measurement taken in a known defective circuit?
A) power B) voltage C) current D) resistance
Examples of things that do not have mass and are not matter include:
A) Helium and argon gas. B) Air and steam. C) Photons and sound. D) Hydrogen and methane.