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Chapter 4 PROBLEMS, THEIR CAUSES AND REMEDIES OF ENGINE CYLINDERS MCQs

1. Ovality means that the piston is _______ in line with the wrist pin bore:

(A) Largest


(B) Smallest


(C) Least


(D) None of these




2. Cylinder Taper is the difference of the _______ between top of the cylinder bore under the ridge and bottom of the cylinder:

(A) length


(B) width


(C) diameter


(D) both b & c




3. Due to very high temperatures, the film of the lubricating oil will get:

(A) finished


(B) more viscosity


(C) oxidized


(D) None of these




4. The cylinder taperness of up to _______ is acceptable:

(A) 0.10”


(B) 0.001”


(C) 0.010”


(D) None of these




5. Broken piston rings are a cause of:

(A) scoring


(B) scuffing


(C) hissing


(D) None of these




6. Lack of lubrication is cause of:

(A) scuffing


(B) scoring


(C) hissing


(D) None of these




7. Over size sleeve is cause of:

(A) Scuffing


(B) distortion


(C) scoring


(D) None of these




8. If the cylinders are out-of-round more than _____, reboring is recommended:

(A) 001”


(B) 002”


(C) 005”


(D) None of these




9. The X axis is the line that intersects the engine:

(A) vertically


(B) horizontally


(C) a & b


(D) None of these




10. Set the dial gauge scale to zero position on the dial gauge needle:

(A) least


(B) biggest


(C) zero


(D) None of these




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