Why is bubble testing the best way to locate a gas leak?
What will be an ideal response?
Bubble testing provides a visual leak indication at the exact location of the leak.
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Explain how codes are used in construction documents.
What will be an ideal response?
Technician A says that the secret of effectively repairing a break in the twisted wire pair used in a J1939 data bus is to use plenty of solder in the repair joint to minimize resistance. Technician B says that a damaged Hi bus J1939 twisted wire pair should be replaced, rather than repaired. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Find the change in enthalpy when 500 grams of the compound are heated at atmospheric pressure from liquid at 50 °C to vapor at 150 °C.
A compound has the following properties at atmospheric pressure: • Normal boiling point of 95 °C • Specific enthalpy of vaporization of 900 J/g • In the liquid phase, CP = 2.4 J/gK • In the vapor phase, CP = 3.0 J/gK
Which is the most common type of fuel pump design?
A) Gerotor B) Turbine C) Rotor cell D) Impeller