If a varnish-like substance has formed on an oil burner nozzle, it indicates that the _____
a. nozzle is bent or warped
b. nozzle is clogged
c. furnace is overheating
d. nozzle is rusty
c
You might also like to view...
Technician A says that top dead center (TDC) is simply the point at which a piston stops during its upward travel. Technician B says that piston TDC is the exact midpoint that occurs between the completion of an upstroke and the beginning of a downstroke. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Parameter
What will be an ideal response?
What is a common cause of injector scuffing?
A. use of 1D diesel fuel B. adding methyl hydrate to fuel tank C. prolonged periods of high engine loading D. running at excessive road speeds
Which of the following statements is normally true concerning the service neutral or grounded conductor in a
residential application? A) It must always be larger than the ungrounded conductors. B) It must have green insulation for identification purposes. C) It is usually smaller than the ungrounded conductors. D) It is used only for an equipment ground; it never carries any current.