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Solution


Q.

Tidal volume and expiratory reserve volume of an athlete is 500 mL and 1000 mL respectively. What will be his expiratory capacity if the residual volume is 1200 mL     [2019]
1 2700 mL  
2 1500 mL  
3 1700 mL  
4 2200 mL  

Ans.

(2)

Expiratory capacity is the total volume of air a person can expire after normal inspiration. It includes tidal volume (TV) and expiratory reserve volume (ERV).
EC = TV + ERV = 500 mL + 1000 mL = 1500 mL