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1. |
What are the ventilating parts in the ventilating circuits?a) sharp or projecting inlet edgesb) inlet cornersc) variations in cross-sections of air pathsd) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths 4.What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet? |
A. | sharp or projecting inlet edgesb) inlet cornersc) variations in cross-sections of air pathsd) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths 4.What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet?a) 40-50 * 10-3 |
B. | inlet cornersc) variations in cross-sections of air pathsd) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths 4.What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet?a) 40-50 * 10-3b) 40-60 * 10-3 |
C. | variations in cross-sections of air pathsd) sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths 4.What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet?a) 40-50 * 10-3b) 40-60 * 10-3c) 30-50 * 10-3 |
D. | sharp or projecting inlet edges, inlet corners, variations in cross-sections of air paths 4.What is the range of the coefficients of hydrodynamic resistances for the protruding edges at inlet?a) 40-50 * 10-3b) 40-60 * 10-3c) 30-50 * 10-3d) 30-40 * 10-3View Answer |
Answer» E. | |