Technician A says that in a self-energizing brake, the rotation of the drum decreases the braking force of the lining against the drum. Technician B says that the force of the brake drum is added to the force supplied by the wheel cylinder. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: B

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What is a "fitted block?"

What will be an ideal response?

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Humus is an important soil colloid. It differs from 2:1 type minerals in all but one of the following characteristics:

A) capable of adsorbing cations B) influence on soil aggregate stability C) CEC dependence on soil pH D) structural framework of the particles E) influence of isomorphous substitution

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The coolant heat storage system is being discussed. Technician A says that the water valve is driven by an electric motor. Technician B says that the storage tank has its own electric water pump. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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In heavy-duty wall-form systems, the forms components are connected with _____

a. screw clamps b. nuts and bolts c. form ties and walers d. quick-connect hardware

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