Technician A says that a defective ground connection at the master control switch (driver's side) could cause the failure of all power windows. Technician B says that if one control wire is disconnected, all windows will fail to operate. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
A
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The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than
Air brake
Materials typically used for cable jackets include neoprene, lead, and _____.
a. polychlorprene b. copper c. PVC d. rubber
An initially evacuated tank is to be filled with N2 gas from a supply line. The N2 gas in the supply line is at 20oC and 800 kPa. The volume of the tank is 0.5 m3, and the tank is to be filled until the pressure in the tank is 750 kPa. Determine the amount of N2 that flows into the tank, and the final temperature of the N2 in the tank, assuming that the tank is insulated.
State i: Inlet (Supply Line); State 1: Initial State; State 2: Final State Given: N2; Ti = 20oC; Pi = 800 kPa; V = 0.5 m3; P2 = 750 kPa; Assume: P1 = 0; m1 = 0 (initially evacuated); Q = 0 (insulated). Also, as no information is given and these terms are unlikely to be significant, W = 0, and kinetic and potential energy can be neglected. No flow out of the tank. N2 is an ideal gas with variable specific heats.
If the dry-bulb temperature is 76°F and the wet-bulb temperature is 68°F, the wet-bulb depression is ____________________°F.
Fill in the blank(s) with the appropriate word(s).