An electrical motor has a degree of efficiency (Eff) equal to the ratio of its useful output power () to the input power () required to operate it.

A.
B.
C.
D.


Answer: A

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The operator's seat should be adjusted so that _____.

a. both feet are flat on the floor when they are off the pedals b. the knees are slightly bent when any pedal is fully depressed c. the legs are perfectly straight when any pedal is fully depressed d. only the toes are touching the floor when the feet are off the pedals

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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

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Degree of finish is influenced by which of the following?

a. muscling c. maturity stage b. frame size d. all answers

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A vehicle fails an emission test due to excessive carbon monoxide indicating a rich air fuel mixture

Technician A says that a saturated charcoal canister could be the cause. Technician B says that a stuck-closed EVAP purge solenoid could be the cause. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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