A technician suspects that the exhaust gas recirculation (EGR) valve is closed. Which of the following would indicate a closed EGR valve
A. Engine surge
B. Rough idle
C. Stalling
D. Spark knock
Answer : B. Rough idle
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Most fuel filters are designed to remove particles larger than ________
A) 70 microns B) 100 microns C) 20 microns D) 10 micron
Answer the following statement(s) true (T) or false (F)
1. Solid-state devices, such as diodes and transistors, are often referred to as semiconductors. 2. Conductors are generally made from materials that have small, light atoms. 3. Insulators are generally made from heavy-weight materials that have large atoms. 4. Semiconductors are materials that are neither good conductors nor good insulators. 5. If a semiconductor material is to become useful for the production of solid-state components, it must be mixed with an impurity.
Answer the following statement(s) true (T) or false (F)
When driving drywall fasteners it is important not to break the paper surface.
If a lockout relay becomes defective, it should be replaced with an exact duplicate, sometimes called a(n) _____.
a. induced-draft relay b. control relay c. time-delay relay d. impedance relay