Before driving a truck or bus with a dual air brake system, the pressure in each system should be at least _____ psi.
Fill in the blank(s) with the appropriate word(s).
Ans: 100
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Technician A says a defective engine coolant temperature sensor may affect the EGR valve operation. Technician B says a defective engine throttle position sensor may affect the EGR valve operation. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
¿Qué tipo de aislamiento se instala dentro de hornos o en otros aparatos de alta temperatura?
a. Refractario b. Espuma de poliuretano in situ c. Almohadilla blanda d. Poliestireno
Which type of materials are most affected by UV light?
a. Organic b. Metals c. Minerals d. Glass
Technician A says that a disadvantage of forged steel trunk pistons is reduced headland volume when compared with articulating pistons. Technician B says that when a diesel engine uses lighter pistons, higher rpms are possible. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B