What is the relationship between a WT section and a W-section?
What will be an ideal response?
A WT section is made by sawing a W-section through its center to yield two equal-size WT sections.
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List the variable and the equation that define the enthalpy of a system.
What will be an ideal response?
Plotting a sinusoidal sequence. The following script plots a sinusoidal sequence using stem plot without axis. Find the error in the script.
i = 0:100; % define index array
y = sin(2*pi*j/100);
stem(y)
axis([1 101 -1 1])
axis off
Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa) or 20 psi for every 1000 engine RPM. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Which of the following are goals of the Clean Air Act?
A. Require companies to take whatever actions are necessary to prevent or minimize the potential consequences of the accidental release of pollutants into the air. B. Chemical safety and hazard investigation board to investigate accidental releases of pollutants that result in death, serious injury, or property damage. C. Both A and B are goals. D. None of the above