How would a timing chain system be inspected for wear on an assembled engine?
What will be an ideal response?
Timing chain wear can be measured by the amount of movement the crankshaft makes before the camshaft begins to move. A torque angle gauge can be used when timing marks are not available. The crankshaft should be moved clockwise then counter clockwise. The distributor can be watched or rocker arms can be used as a reference. More than eight degrees, or specifications provided by the manufacturer show a need for replacement.
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In a VAV system, the demand for heat is satisfied by _____.
a. a heater attached to the VAV terminal b. independent baseboard heat c. an independent heat pump d. electric heaters in the air handler
Para una halada en ángulo o en U, la longitud de la caja de derivaciones que aloja conductores protegidos a tensiones superiores a 600V debe ser de _____ veces el diámetro exterior del conductor protegido más grande que entra en la caja.
a. 24 b. 36 c. 48 d. 60
Answer the following statement(s) true (T) or false (F)
Most people injured on construction scaffolding were trained on scaffold safety
Technician A says that electrons in a fuel cell flow from the cathode to the anode. Technician B says that electrons in a fuel cell flow from the anode to the cathode. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician