Answer:
Thomas has psychological disorder
Explanation:
Thomas is suffering from a psychological disorder called as OCD or obsessive compulsive disorder.
It is a condition where the person has some obsessions about something, which he cant overcome and in response of these, he performs some actions or compulsions. These behaviours are performed frequently and they are not in control of the person
Now Thomas has some obsession of counting and in response to that he keeps on counting I sets of four
1.) To find the piston displacement, you have to find the volume of cylinder. The formula for volume is V = pi*r^2*h, where V = volume, r = radius, h = height
2.) V = pi*r^2h
= 3.14*2.25^2*4.5 (bore = diameter; hence r = diameter/2) (height = stroke)
= 3.14*5.06*4.5
= 71.4978 or 71.50
3.) Since the engine has 8 cylinders, multiply the piston displacement by 8
= 71.50*8
= 572
Therefore, the total piston displacement of an 8-cylinder engine is D. 572
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