Author: Hamad

In the mid-section formula__________________?

Estimating and Costing 04/01/2021
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A. The mean depth is the average of depths of two consecutive sections
B. The area of mid-sections is calculated by using mean depth
C. The volume of the earth work is calculated by multiplying the mid-section area by the distance between the two original sections
D. All of the above

According to Prevost theory of heat exchange ___________________?

Heat Transfer 04/01/2021
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A. it is impossible to transfer heat from low temperature source to t high temperature source
B. heat transfer by radiation requires no medium
C. all bodies above absolute zero emit radiation
D. heat transfer in most of the cases takes place by combination of conduction, convection and radiation
E. rate of heat transfer depends on thermal conductivity and temperature difference