Where are the specific enthalpy lines and how are they marked?
What will be an ideal response?
The specific enthalpy lines are vertical lines going from top to bottom; the scale is shown along the top and bottom of the PH diagram. The units are given in Btu per pound of refrigerant, Btu/lb.
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Answer the following statement(s) true (T) or false (F)
1. Solid-state relays are sealed against dirt and moisture. 2. Solid-state relays can be used to control either a DC load or an AC load. 3. Small reed relays are probably the most common method for controlling a solid-state relay. 4. All relays use opto-isolation to control the output. 5. Many solid-state relays have a feature known as zero switching.
For the geometric and traffic characteristics shown below determine a suitable signal phasing system and phase lengths for the intersection using the Webster method. Show a detailed layout of the phasing system and the intersection geometry used.
Assume the following saturation flows:
Through lanes: 1600 veh/h/ln
Through-right lanes: 1400 veh/h/ln
Left lanes: 1000 veh/h/ln
Left-through lanes: 1200 veh/h/ln
Left-through-right lanes: 1100 veh/h/ln
What will be an ideal response?
Gloves should be worn a little too tight.
Answer the following statement true (T) or false (F)
When threading, the carriage is moved along the ways by:
A) The lead screw B) The feed rod spine or keyway C) A gear train on a rack D) The hand wheel