Two Technicians Are Describing HEUI HIB-300 Injector Operation

question 38

Multiple Choice

Two technicians are describing HEUI HIB-300 injector operation. Technician A says that fuel travels to the cavity above the amplifier piston while pressurized oil is applied to two sides of the poppet valve and to the top of the nozzle valve, holding it closed. Technician B says that when the poppet valve is energized, the valve lifts, closing off the high-pressure oil passageway and applying pressure to the nozzle valve. Who is right?

• A)A only"
• B)B only"
• C)Both A and B
• D)Neither A nor B"

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Definitions:

Standard Price

The pre-determined cost that is expected to be paid for a specific item or service under normal conditions.

Standard Labour Rate

The predetermined wage rate used for budgeting and variance analysis, representing the expected cost per hour of labor.

Standard Labour Hours

The predetermined amount of labor time that is expected to be necessary to produce one unit of a product or complete a process.

Material Price Variance

The difference between the actual cost of materials and the standard cost, multiplied by the quantities purchased.