Exhaust passages are included in some intake manifolds. Technician A says that the exhaust passages are used for exhaust gas recirculation (EGR) systems. Technician B says that the upper intake is often called the plenum. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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If the contact on a PLC ladder logic rung is an examine off type, then
A) the field device must be a NO type of contact. B) power flows in the contact if the input pin associated with the examine off contact has zero volts present. C) the field device must be a NC type of contact. D) power flows in the examine off contact if the field device is a NC contact type and the contacts are in their normal position. E) None of the above
Silk flowers are made of polyester fabric
Indicate whether the statement is true or false
Troubleshooting Walk-In / Low Temp - Diagnosis: Inefficient compressor Use vacuum check to verify bad valves
Static pressure readings are taken on a duct system by:
A) Subtracting the velocity pressure from the total pressure. B) Pointing the pressure-sensing tube into the airstream. C) Subtracting the total pressure from the velocity pressure. D) Pointing the pressure-sensing tube perpendicular to the air stream.