If this is an introductory activity, then it is really not important that students understand the details of specific heat capacity at this point! It is just important that students understand that different materials heat up and cool down at different rates; this has important implications for life on Earth. A material's specific heat capacity is the amount of heat (or energy) required to increase the temperature of one kilogram of the material by 1Â°C.
Mechanical Drawing Symbols. Mechanical systems drawing is a type of technical drawing that shows information about heating, ventilating, and air conditioning. It is a powerful tool that helps analyze complex systems. These drawings are often a set of detailed drawings used for construction projects; it is a requirement for all HVAC work.
See Engineering drawing. In making a pictorial drawing, the viewing direction that shows the object and its details to the best advantage is chosen. The resultant drawing is orthographic if the viewing rays are considered as parallel, or perspective if the rays are considered as meeting at the eye of the observer.). Oblique pictorial drawings, while not true orthographic views, offer a convenient method for drawing circles and other curves in their true shape (Fig. 2). In order to reduce the distortion in an oblique drawing, measurements along the receding axis may be foreshortened.