A ____ vapor barrier is laid over the gravel underfill.
A. polypropylene
B. polyethylene
C. polyester
D. PVC
Answer: B
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What type of control element can only be on or off?
A) Discrete B) Modulated C) Valve control D) Continuous
Why does the fuel pressure on a typical return type port fuel injection system increase when you snap the throttle?
A.The manifold pressure goes up, and to maintain a constant pressure drop across the injector, the fuel must increase as well.
b.As the manifold pressure goes down, the fuel pressure must increase the pressure drop across the injector,
c.None of these.
d.As the manifold pressure goes up, the fuel pressure must increase, to decrease the pressure drop across the injector.
A(n) ____________________ is a nonmoving part in a faucet that seals when a moving part is pressed
against it.
Fill in the blank(s) with the appropriate word(s).____ means the design is useful to a wide range of people with different abilities.
A. Flexible B. Perceptible C. Equitable D. Intuitive