What is a speed density program and how does it work?
What will be an ideal response?
A speed density program substitutes a calculated value for the volume of the air charge entering the combustion chamber as opposed to using a MAF sensor. The speed density equation generally uses information from the MAP, engine RPM, TPS, IAT, ECT, and adaptive strategy information. The speed density equation determines the maximum possible air flow entering the engine by monitoring the input information from the CKP and CMP sensors. The PCM will divide the current RPM reading by the theoretical maximum rpm to determine base air flow.
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Older engines with carburetors were susceptible to ____________________ that occurs when fuel vaporizes in a line and a bubble blocks fuel flow.
Fill in the blank(s) with the appropriate word(s).
The first CPU used in an IBM PC was the ____ ,which worked at about _____, or ____ clocks beat per second.
A. 8088, 4.77 MHz, 4,770,000 B. 4044, 133 MHz, 4,770,000 C. 8088,200MHz, 2,440,000 D. 4044, 400 MHz, 2,440,000
The bearing defect that is caused by vibration between the rollers in the bearing raceway is _____
a. a broken cam b. brinelling c. false brinelling d. fatigue
A roof plan is used to show the shape of the roof and the size and direction of its major construction materials.
Answer the following statement true (T) or false (F)