_____ is an ingredient in concrete that causes the concrete to become hard.

A. Fine aggregates
B. Portland cement
C. Admixtures
D. Course aggregates


Answer: B

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Technician A says that the clutch pedal is pushes directly on the pressure plate. Technician B says that the slave cylinder is mounted near the clutch pedal in most vehicles. Which technician is correct?

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

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Where a permanently installed pool is installed, no fewer than one 125-volt 15- or 20-ampere receptacle on a general-purpose branch circuit shall be located a minimum of ____ ft, but no more than 20 ft, from the pool's inside wall.

A. 5 B. 6 C. 8 D. 12

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Which of the following is NOT a classification of solid rear wheel drive axles?

A) Full-floating B) Semi-floating C) Three-quarter floating D) Independent

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In a fiber optic system, if the angle of incidence is greater than the critical angle

A) absorption occurs B) scattering increases C) scattering decreases D) total reflection occurs

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