- There is only coil ( capillary tube in refrigerator ) which maintains freezer temp.
- The refrigerator chamber is maintained using forced circulation method by a fan which uses this cold air to cool the other chamber.
- Or no fan is used and convectional currents gets set in due to temp difference between the freezer and refrigerator section .Thereby having two temp in refrigerator
It is a two dimensional drawing of a three dimensional surface of the ship’s hull form. This plan is very useful for the following information:It is used for marking the location of a hull Damage on this plan by identifying the strake number , letter and frame number so that the exact location of the damage and also suggested repairs are marked in a localised copy. The shell expansion can be used for finding areas of painting surfaces such as topside, boot topping and bottom areas by applying Simpsons rules directly. In the shell expansion the vertical scale used is different from the horizontal scale and a suitable adjustment has to be made when calculating areas. This becomes useful in solving disputes concerning areas of preparation and painting. It gives information on the thickness of the original strake which is indicated by the number in the circle shown in the strake. The quality of steel used is also shown by letters A,B,D E and AH, BH,DH, EH.