Technician a Says an SFI Is More Efficient Than an MFI

question 90

Multiple Choice

Technician A says an SFI is more efficient than an MFI injection because fuel is injected only when the intake valve is open, so the fuel can't condense when the intake valve is closed. Technician B says an MFI injection system can shut down the injector for a misfiring cylinder, preventing catalytic converter overheating. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Asthma

A chronic respiratory condition characterized by airway inflammation, leading to wheezing, shortness of breath, chest tightness, and coughing.

Wheezes

A high-pitched whistling sound during breathing, often indicating obstruction or narrowing of the airways.

Ice Chip Consumption

Eating small pieces of ice, often practiced for hydration or to alleviate mouth dryness, especially in patients with nausea or who are nil by mouth postoperatively.

Urinary Output

The volume of urine excreted by the kidneys over a specified period, an important indicator of kidney and overall health.