Todo lo siguiente aparece en un fusible de cartucho para la protección de circuitos derivados EXCEPTO:
a. el amperaje nominal.
b. las dimensiones.
c. el nombre del fabricante.
d. el voltaje nominal.
b. las dimensiones.
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On the General Motors starter, the drive unit is held in place on the ____________________ shaft by a split metal ring covered by a full round ring.
Fill in the blank(s) with the appropriate word(s).
Data from a 6-ft by 6-ft inductive loop detector collected during a 30-second time period indicate that the mean speed of traffic is 50 mi/h among the 16 vehicles counted. Assume an average vehicle length of 19 ft. Determine the density and occupancy.
What will be an ideal response?
The rating of the __________ determines the rating of a branch or feeder circuit.
a. fuse or circuit breaker b. conductor c. receptacle d. main panel
Computer study—Truss Stiffening Strategy. For the truss in Example 8.7, use the RISA- 2D computer program to (a) recompute the vertical deflection of F if the areas of members BC, CD, DE, EF, FA, FC, and CE are doubled. What is the percent increase in total volume of material used? What is the percent reduction in deflection? (b) Recompute the vertical deflection of F if only members AB and BF have double the area. What is the percent increase in total volume of material used? What is the percent reduction in deflection? (c) Using only Table 8.2, explain your result.
