A freezestat is a _____.
a. normally closed bimetal switch
b. normally open bimetal switch
c. digital control
d. thermostat that has seized
a. normally closed bimetal switch
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¿Qué tamaño de la tubería de aislamiento puede superponerse al aislante de fibra de vidrio para tuberías de 2 x 1 pulgadas (5,08 x 2,54 cm)?
a. 2 pulgadas (5,08 cm) b. 1 pulgada (2,54 cm) c. 3 pulgadas (7,62 cm) d. 4 pulgadas (10,16 cm)
Pure tungsten has ____ heat resistance and electron emission characteristic ____ all the tungsten electrodes.
A. the best, of B. a similar, to C. the same, as D. the poorest, of
The _________ appears on the surface of the ovary and secretes estrogen
a. Fallopian tube c. Follicle b. Endocrine gland d. Zygote
The chamfer on the cutting end of a die:
A) Provides space for cutting fluid B) Is unnecessary C) Gives extra chip clearance D) Distributes the cutting action over a number of threads