Thermal coefficient of expansion (coefficient of thermal expansion) is the rate of expansion or contraction of a material when its ____________________ is increased or decreased.
Fill in the blank(s) with the appropriate word(s).
temperature
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Technician A says that in some short-and-long arm front suspension systems, the coil springs are mounted between the lower control arm and the chassis. Technician B says that in this type of suspension system, the upper ball joints are the load-carrying ball joints. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
¿Qué tipo de aislamiento se instala dentro de hornos o en otros aparatos de alta temperatura?
a. Refractario b. Espuma de poliuretano in situ c. Almohadilla blanda d. Poliestireno
How do the recovery levels for Type III equipment differ from recovery levels for other types of equipment?
A) They are all higher than for other types. B) They are all optional to attempt. C) They require lower vacuums than for other types. D) They are all the same amount.
Which of the following statements about ah H-block thermostatic expansion valve is not true?
A. The H-block TXV contains two refrigerant passages one from the condenser to the evaporator and the other passage is from the evaporator outlet to the inlet of the compressor. B. The H-block TXV is considered an internally equalized valve. C. The H-block TXV is considered an externally equalized valve. D. The H-block TXV is capable of sensing the temperature of the refrigerant directly at the evaporator outlet.