Engine Block and Cylinder Liner Fundamentals 190201b pg39

Question 1

The cylinder block of an engine:
A. Forms a rigid foundation for major engine components.
B. Contains passageways for movement of coolant and oil.
C. Provides mounting surfaces for engine accessories.
D. All of the above.

Answer 1

D. All of the above

Question 2

The Part of the cylinder block that contains and supports the crankshaft is the:
A. Camshaft bearing bores
B. Flywheel housing
C. Main bearing bores
D. Cylinder bore

Answer 2

C. Main bearing bores

Question 3

A typical inline cylinder block has its cylinders numbered starting from the:
A. Flywheel end
B. Front of the block
C. Camshaft side
D. Drivers side

Answer 3

B. Front of the block.

Question 4

The banks of a V type engine are normally identified as:
A. One and two front the front of the engine.
B. Upper and lower from the side of the engine.
C. Front and rear from the side of the engine.
D. Left and right from the rear of the engine.

Answer 4

D. Left and right from the rear of the engine.

Question 5

The term enbloc is used to describe a cylinder block that is:
A. A one piece casting.
B. Manufactured in two pieces.
C. Most often die cast.
D. Welded steel and forged construction.

Answer 5

A. A one piece casting.

Question 6

Alloy cast iron is used for engine block material due to its:

Answer 6

C. Strength

Question 7

The outside diameter of a dry liner must fit the cylinder block bore correctly:
A. To prevent coolant from leaking into the crankcase.
B. To allow heat transfer from the liner to the block material.
C. to support the liner.
D. Both B and C

Answer 7

D. Both B and C

Question 8

Wet type cylinder liners:
A. Normally have leakage.
B. Are in direct contact with the coolant.
C. Depend of block contact for cooling.
D. Are supported by the block along their entire length.

Answer 8

B. Are in direct contact with the coolant.

Question 9

Removable cylinder liners are used:
A. To allow easy replacement of worn cylinder bores.
B. To repair integral cylinders.
C. To reduce manufacturing costs.
D. So that engine displacement can be easily changed.

Answer 9

A. To allow easy replacement of worn cylinder bores.

Question 10

The purpose of the firewall on a liner is to:
A. Protect the liner O-Rings from excessive heat.
B. Act as a combustion seal.
C. Reduce the heat and pressure acting on the head gasket.
D. Prevent interference between the block and the liner.

Answer 10

C. Reduce the heat and pressure acting on the head gasket.

Question 11

A modular cylinder block design is used:
A. When engine size makes a one piece block casting unmanageable.
B. If cast one piece blocks are unavailable.
C. When increase block rigidity is necessary.
D. For most high speed mobile equipment engines.

Answer 11

A, When engine size makes a one piece block casting unmanageable.

Question 12

Leaking O-rings on a wet liner cause:
A. excessive liner movement.
B. coolant to enter the crankcase.
C. A loss of heat transfer.
D. A leaking head gasket.

Answer 12

B. Coolant to enter the crankcase.