The performance grade (PG) of a window gives the permissible design wind load on the window. For instance, PG30 means that the design wind load on the window is 30 psf. What is the safety factor required in the window's resistance to wind load? Explain.
What will be an ideal response?
Safety factor of 1.5 is built into the window's resistance to wind load, i.e., a window rated as PG30 must be able to
resist a wind load = 30(1.5) = 45 psf.
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A flex-fuel vehicle uses the PCM to make adjustments to the engine according to the percentage of ethanol in the fuel. The PCM must adjust which engine settings?
A) Quantity of fuel delivered B) Ignition timing C) Both A and B D) Neither A nor B
How can a technician tell the difference between an upflow furnace and a downflow furnace?
What will be an ideal response?
If a mistake is made, it should be repaired at the vehicle owner's expense.
Answer the following statement true (T) or false (F)
Cuando se colocan varios conductores, es importante:
a. mantener tensas las bobinas de manera que el exceso de cable no se desparrame en el suelo. b. asegurarse de que los cables estén rectos y no se entrecrucen. c. colocar tiros en los conductores para evitar retorcimientos. d. llenar el conducto con lubricante.