Describe extension lines.
What will be an ideal response?
Extension line extend from close to the object line to just past the dimension line to make clear just what on the object is being dimensioned. They are as thick as dimension lines.
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Write the equation for the residence time as a function of the system volume, V, and the volumetric flow rate, Q, of the material or, alternatively, by dividing the mass of material, m, in the control volume by the mass flow rate of material, M, flowing through the volume.
What will be an ideal response?
One day has the sun shining for 
? of the day. Determine the time a solar collector could collect heat on this day.
Fill in the blank(s) with the appropriate word(s).
La herramienta que se muestra en la figura provista se utiliza para:
a. roscar tubos.
b. doblar tubos.
c. soldar uniones de tubos.
d. biselar tubos.
Technician A says that the exhaust valve is larger than the intake valve to ensure that all the exhaust gases leave the cylinder. Technician B says that the exhaust valve is larger than the intake valve to ensure proper heat dissipation. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B