Which of the following statement(s) is (are) true?
A) An income elasticity of less than 1 indicates that the commodity is a necessity.
B) If the own-price elasticity of demand is -1, the demand is said to be unitary elastic.
C) A positively sloped Engel curve implies that the commodity is a normal good.
D) All of the above.
D) All of the above.
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How many pounds of the following pollutants are emitted from burning one ton of bituminous coal in a domestic hand-fired furnace?
a. PM b. Sulfur oxides c. Carbon monoxide d. Hydrocarbons e. Nitric oxides f. HCl What will be an ideal response?
Which of the following can cause overpressuring of the heat exchanger?
A. Attempting to place the exchanger in service with the bleed valves open B. Applying heat to the exchanger without following the proper warm-up procedure C. Improper alignment of the inlet and outlet valves D. Opening a cold fluid to a hot heat exchanger
Companies traditionally offer craft-professional training _____.
a. that a supervisor leads in a classroom setting b. only in a classroom setting c. in a hands-on setting, where they learn from an experienced worker d. on a self-study basis
The focal point of a design can also be called the emphasis
Indicate whether the statement is true or false