When the materials in a metallic piping system increase in temperature, the piping _____.
a. expands
b. contracts
c. vibrates
d. sweats
a. expands
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Two technicians are discussing the term "turbo lag." Technician A says that it refers to the delay between when exhaust leaves the cylinder and when it contacts the turbine blades of the turbocharger. Technician B says the term refers to the delay in boost pressure that occurs when the throttle is first opened. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Op amp integrators provide a ramp function as the input to the proportional control valve
Indicate whether the statement is true or false
Technician A says the EPA authorized the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions output beginning in 1996. Technician B says the EPA authorized the use of OBD testing as a replacement for tailpipe and dynamometer testing of emissions output beginning in 2002.
A. A only B. B only C. both A and B D. neither A nor B
?Which type of control is typically used with a room thermostat?
A. ?on/off control B. ?floating control C. ?modulating DC output control D. ?differential control