An isothermal process is a process that does not change:

A) The volume of the refrigerant. B) The pressure of the refrigerant.
C) The temperature of the refrigerant. D) The state of the refrigerant.


C

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A fully multiplexed J1939 instrument panel cluster on a truck with a body control module has the following inoperative gauges: engine oil pressure, coolant temperature, tachometer, and speedometer. The automatic transmission oil temperature gauge, air pressure gauges, fuel level gauge, and turn signal indicators still function correctly. What could be a possible cause of the inoperative gauges?

A. Short circuit between CAN + and CAN - B. CAN + is shorted to ground. C. Missing terminating resistors D. An open CAN + or CAN - circuit between the engine ECM and the instrument panel cluster

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An adiabatic steam turbine operates between state 1 at 6 MPa and 600°C, and state 2 at 10 kPa and x2 = 1.0. The turbine efficiency is nearest:

A) 92% B) 87% C) 81% D) 77%

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Explain why the use of GMA welding can help reduce waste of filler metals.

What will be an ideal response?

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The nucleus of a cell is composed primarily of all the following except:

a. Proteins c. Nucleic acids b. Lipases d. Enzymes

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