What material, used in friction linings, may cause lung damage with repeated exposure?
A) Ceramic fiber B) Asbestos C) Carbon fiber D) Fiberglass
B
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Cuando se aísla el bonete de una válvula de compuerta de brida _____.
a. se debe detener el aislamiento por debajo de las tuercas de los pernos de la glándula de empaque b. se debe detener el aislamiento por encima de las tuercas de los pernos de la glándula de empaque c. se debe detener el aislamiento 3 pulgadas por encima del cuerpo de la válvula d. Ninguno de los anteriores.
Explain the major difference between a synchronous shift register and an asynchronous shift register.
What will be an ideal response?
There is a standard industry-wide system for take-offs that is followed universally
Indicate whether the statement is true or false
Soils of the tropics will greatly affect future food supplies. Which of the following is correct in relation to these soils?
A) Alfisols are widespread in the tropics, especially in humid areas. B) Aridisols are scarce in the tropics, especially in Africa. C) Mollisols developed on alluvial parent materials are prized as productive rice soils. D) Oxisols and Ultisols are highly leached and low in available nutrients. E) Oxisols and Ultisols dominate the semiarid areas.