Technician a says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. technician b says that low coolant level will result in the water pump only heating the engine, not the inside of the car. who is  correct?
neither technician a nor b
b. technican b
c. both technicians a and b
d. technician a

The medium that carries message signals from senders to receivers of communication is

Two technicians are discussing oil changes. technician a says that waste oil and old filters need to be disposed of according to the law. technician b says that old filters can be returned to the parts department for a core value. which technician is correct?           a. technician a only   b. both technicians a and b   c. technician b only   d. neither technician a nor b

Psycoloshist albert bandits developed a theory of