Which of these is true regarding port fuel injection systems?
A) Fuel distribution to all cylinders is equal.
B) The intake manifold may be shaped and sized to best fit the engine performance requirements.
C) Fuel is injected almost directly into the combustion chamber.
D) All of these are correct.
D
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PROBLEM 3.51 The solid cylinders AB and BC are bonded together at B and are attached to fixed supports at A and C. Knowing that the modulus of rigidity is 3.7 ? 106 psi for aluminum and 5.6?? 106 psi for brass, determine the maximum shearing stress (a) in cylinder AB, (b) in cylinder BC.
Explain how to round off decimal dimensions.
What will be an ideal response?
A self-contained recovery device:
A) Is used with systems that are not connected to the power grid. B) Can only be used on systems that are sold by independent distributors. C) Relies on the system from which the refrigerant is being recovered for its operation. D) Does not rely on the system from which the refrigerant is being recovered for its operation.
Most of today's standard refrigerant gauge manifolds have a high-pressure gauge that goes up to _____
a. 500 psig b. 650 psig c. 800 psig d. 900 psig