Technician A says used coolant should never be recycled. Technician B says coolant types that include DEX-COOL are ethylene glycol-based. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician
B) Technician B only
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Technician A says that a vibration felt at highway speeds with the transmission in neutral, is not likely to be caused by the engine. Technician B says that a vibration felt during acceleration could be due to uneven U-joint angles. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Systems that involve the use of compressed air are governed by the principles of _____.
a. hydraulics b. phonetics c. pneumatics d. dynamics
A piston-cylinder device initially contains 100 kg of liquid water at T = 353.15 K and P = 0.1 MPa. The device is isobarically heated, expanding against an external pressure of 0.1 MPa, until exactly 12 % of the water has vaporized, with the rest remaining in the liquid phase. How much heat was added?
A. 2. MJ B. 35.5 MJ C. 7.7 MJ D. 37.5 MJ E. Insufficient information to solve
Technician A says that lifting the vehicle and turning the steering wheel may help bleed air out of some systems. Technician B says that if this procedure is used, the wheels should be turned from stop to stop. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician