List the two types of lighting techniques and provide an explanation for each
What will be an ideal response?
A variety of types of lighting are used today for aesthetic purposes; some examples
include up lighting and down lighting. Up lighting is when light shines up at the base of
the tree or interesting object, highlighting that particular tree or object in the
landscape. Down lighting is when light shines down on a tree or interesting object,
creating an interesting shadow pattern on the ground.
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In an application where the horsepower required by the load is constant, if the speed of a DC motor is reduced, the torque is __________.
A. increased B. decreased
The process by which thermal energy is transferred by a gas is called __________.
A. convection B. conductance C. radiation
Which of these statements about using turn signals is true?
a. When turning, you should cancel the signal just before you make the turn. b. When turning, you should signal early. c. You do not need to use your turn signal when changing lanes in traffic on a four-lane highway. d. You should use your turn signal to mark your vehicle when it is pulled off on the side of the road.
The shielding gas used on carbon steel is ____.
A. helium B. carbon dioxide, or a mixture of carbon dioxide and argon C. argon D. argon, or a mixture of argon and helium