What are the by-products of ideal combustion in the internal combustion gasoline engine?
What will be an ideal response?
Under ideal combustion, all the oxygen and all the hydrocarbons are chemically recombined to produce carbon dioxide and water.
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Technician A says that spark knock, ping, and detonation are different names for abnormal combustion. Technician B says that any abnormal combustion raises the temperature and pressure inside the combustion chamber and can cause severe engine damage. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
Which of the following is a good suggestion when bending the furnace plenum flange to minimize distortion?
A) Make a series of smaller angled bends along the length of the flange. B) Make a series of rips along the length of the flange. C) Make a series of larger angled bends along the length of the flange. D) Make a series of smaller angled bends along the width of the flange.
Using Newton’s method to solve the equation x2 –sin(x) – 2 = 0, with an initial guess of x=1 (that is, its value at the zero iteration), select the value that is closest to the value of x after the second iteration:
A. 1.6754 B. 1.7775 C. 1.8073 D. 2.3041 E. 2.3253
An airflow (blend) door may be broken if ________.
A) There is a change in the temperature when the fan speed is changed B) There is a clicking noise from the actuator motor assembly as it tries to move a broken door C) Outlet temperature can change from hot to cold or from cold to hot at any time especially when cornering D) Any of the above