Para evitar obstrucciones cuando se usa una bomba de concreto, se recomienda que el diámetro de la tubería que se usa sea de al menos _____ tamaño del mayor diámetro del agregado contenido en la mez- cla de concreto que se está bombeando.
a. el mismo
b. el doble del
c. el triple del
d. cuatro veces
Answer: C
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?When inspecting valves from the valve body: Technician A says the edges of the spools should be damage-free but should not be sharp.Technician B says to identify a bent valve, install it into its bore and rotate it. If it binds or drags while it is being rotated, it is bent.Who is correct?
A. ?A only B. ?B only C. ?Both A and B D. ?Neither A nor B
If the fault code indicates one of the CAN B circuits is high or low, use a(n) ____________________ to determine if the fault is a short to voltage or short to ground.
Fill in the blank(s) with the appropriate word(s).
Exhaust gas recirculation (EGR) is used to control ________
A) CO B) HC C) D)
Which of the following best describes the electronic engine control inputs on current engines?
A. Data and sensor input. B. Sensor telemetry, data bus messages, and switch status inputs. C. Engine, chassis and emissions inputs. D. Digital and analog.