When the brakes are applied lightly at low speeds on slippery pavement, which type of valve keeps the front brakes from locking?
A) Proportioning valve B) Purge valve
C) Residual pressure check valve D) Metering valve
D
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Technician A says that the EPA Highway Diesel Rule permits NG-fueled engines to output higher NOx emissions. Technician B says that the EPA Highway Diesel Rule focuses on the entire rig and therefore includes factors the influence fuel economy that are not engine-related. Who is correct??
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
Variable refrigerant flow systems operate more efficiently with ________ installed outdoor unit capacity by shifting the heating and cooling to where it is needed
A) smaller B) full C) larger
Two technicians are discussing suspension bushings. Technician A says that replacing control arm bushings usually requires special tools. Technician B says using high-performance urethane bushings may cause excessive noise to be transferred to the passenger compartment. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What is often used as a weather-resistant material for above- and-below-grade construction?
A. slate shingles B. concrete block C. wood shake D. ceramic tile