Provide definitions for the following terms: tensile strength, yield point, and ultimate strength.
What will be an ideal response?
Tensile strength is the maximum stress a material can withstand without breaking.
Yield point is the maximum stress a material can withstand and still be able to return to its original form without damage.
Ultimate strength is about 10% higher than the yield point (for high-quality steel). That is the point at which the fastener breaks.
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Describe how the pressure on the instrument air header is reduced and used to operate other automatic valves.
What will be an ideal response?
Which type of multi-orifii injector nozzle sometimes uses an accumulator in place of a leakoff circuit?
A. pencil injectors B. valve closes orifice (VCO) C. high spring injectors D. low spring injectors
Telomeres lengthen with progressive cell cycles
Indicate whether the statement is true or false
What would be the final volume of 4 ft3 of gas that is compressed from 60°F at 70 psig to 150° at 210 psig?
A) 22 ft3 B) 1.8 ft3 C) 2.2 ft3 D) 4.4 ft3