536 AGRICULTURAL ENGINEERING 



QUESTIONS 



1. Why is the adequate ventilation of farm buildings important? 



2. Explain what is meant by "standard of purity." 



3. What are some of the standards recommended? 



4. What is the three-fold purpose of ventilation? 



5. How much air is breathed per hour by the various farm 

 animals? 



6. How much air is required per hour for each of the various farm 

 animals to maintain a standard of 96.7 per cent purity? 



7. In what four ways may ventilation be secured? 



8. Describe the construction and discuss the efficiency of cloth- 

 curtain ventilators. 



9. How may the action of the wind be used in securing ventilation? 



10. Describe the Sheringham valve. 



11. What is the purpose of cowls or cupolas on ventilating flues? 



12. How may the heating of air be used as a basis of ventilation? 



13. Describe the construction of the King system of ventilation. 



14. What are the possibilities for mechanical ventilation? 



LIST OF REFERENCES 



Rural Hygiene, Henry N. Ogden. 



Sanitation, Water Supply, and Sewage Disposal of Country Houses, 

 Wm. Paul Gerhard. 



Electric Light for the Farm, N. H. Schneider. 



Disposal of Dairy and Farm Sewage and Water Supply, Oscar Erf. 

 Bulletin 143, Kansas Agricultural Experiment Station. 



Sewage Disposal Plants for Private Houses, A. Marston and F. M. 

 Okey. Bulletin VI, Vol. IV., Iowa Engineering Experiment Station, 

 Ames. 



Sanitation and Sewage Disposal for Country Homes, William C. 

 Davidson, Bulletin No. 3, Missouri Engineering Experiment Station. 



Electric Power on the Farm, Adolph Shane. Bulletin 25, Iowa 

 Engineering Experiment Station, Ames. 



Ventilation, F. H. King. 



