4. State the keys used to locate of air inlet and outlet of diffusers?

8. Failure of room ventilation air to mix well due to layering is called: a. Zone effect b. Diffusion c. Stratificationс. d. Induction

5. State duct shapes? List advantages & disadvantages of each type?

1. What is different components of air distribution of air distribution system? What is construction of AHUS? What its types?

6. Human environmental comfort is concerned with which of the following? a. Thermal effects b. IAQ c. Noise levels d. All of the above

6. Discuss the room air distribution system techniques? state when use each one?State the advantages and disadvantages of each method used?