Hydrogen storage tanks are usually constructed from ________
A) Steel B) Aluminum C) Carbon fiber D) Both B and C
D
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How is pipe specified?
What will be an ideal response?
A vapor retarder is perforated so that
A) air may pass through the pores. B) water may pass through the pores. C) water vapor may pass through the pores. D) both air and water vapor may pass through the pores. E) none of the above.
En una EES tipo 2, _____ puede(n) tener energía alternativa conectada mediante un dispositivo de transferencia automática diferida cuando se producen fallas de energía.
a. una área de preparación de medicamentos b. un sistema de comunicación de ascensores c. los carteles de salida d. los sistemas de alarmas
_____ refers to the degree of refinement of head, hair, hide, and bone of the live hog
a. Finish c. Proportion b. Quality d. Soundness