Las placas rígidas se usan para aislar _____.
a. tuberías
b. piezas
c. conductos
d. soportes
c. conductos
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Which type of duct should NOT be allowed to pass through fire-rated walls?
A) Galvanized sheet metal duct B) Flexible duct connector C) Ductboard D) Flexible duct
You have 275 acres of soybeans with an expected yield of 45 bushels per acre. The combine, with a 25-foot reel, travels 3.8 miles per hour. The harvesting efficiency of the field is 0.80.
a. Calculate the harvesting capacity of the combine using the following formula: HC = (S ×W× EFF ×Y)÷8:25 Where: HC is the harvesting capacity, bu/hr. S is the combine speed, mph. W is the combine harvesting width, ft. EFF is the harvesting efficiency of the field. Y is the yield, bu/acre. b. How many bushels of soybeans do you expect? c. How many hours does it take to harvest the soybeans?
Excel provides the ability to "____" a cell, so that Excel will not try to perform iteratively with it.
A. delimit B. freeze C. delete D. chart
When soldering 1-1/2? tubing in a horizontal position, you should _____
A) feed the solder from a single point B) start feeding solder at the top and work down C) start feeding solder near the bottom and work up D) turn the assembly to the vertical position first