Which of the following is a measure of combustion efficiency?
A) O2 B) HC C) CO D) CO2
D
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¿Cuál de los siguientes conectores se puede usar para empalmar cables de voltaje medio?
a. Conectores de compresión b. Conectores de perno dividido c. Tuercas para cable d. Conectores mecánicos
What is the normal temperature for horses?
a. 85°F to 95ºF c. 99°F to 100.8°F b. 96°F to 98°F d. 109°F to 112°F
A milling process is accomplished using either method X or Y. Method X has fixed costs of $10,000 per year with a variable cost of $50 per unit. Method Y is an automated process with a fixed cost of $5,000 per year and a variable cost of only $30 per unit. The number of units that must be produced each year in order for method Y to be favored is closest to: (choose one)
(a) Y will be favored for any level of production (b) 125 (c) 375 (d) X will be favored for any level of production
A polarized electrical receptacle is used for _____
a. all power tools b. three-wire power cords c. double-insulated tools d. plugs with the ground pin cut off