82.

83.

84.

85.

86.

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The formula used to determine the value of pressure expected from the cylinder

during the compression stroke.

A) Compression Pressure = atmospheric pressure times the compression ratio
plus atmospheric pressure plus 96 kPa

B) Compression Pressure = atmospheric pressure times the compression ratio
plus atmospheric pressure plus 69 kPa

C) Compression Pressure = atmospheric pressure times the compression ratio
minus atmospheric pressure minus 69 kPa

D) Compression Pressure = atmospheric pressure times the compression ratio
minus atmospheric pressure minus 96 kPa

To calculate the bobweight of a crankshaft while balancing, the formula used is
equal to

A) 100% of the rotating weight + 50% of the reciprocating weight

B) 50% of the rotating weight + 100% of the reciprocating weight

C) 100% of the reciprocating weight + 60% of the rotating weight

D) 60% of the reciprocating weight + 100% of the rotating weight

Possible causes of abnormal or excessive engine cylinder liner wear are
i) Due to friction and corrosion

ii) Abrasion

iii) Scuffing or Adhesion

iv) Excessive heat
)
)

A) Only (i & ii) B) Only (iii & iv)

C) Only (i, ii & iii) D) All the above (i, ii, iii & iv)
The oscillation of the front wheels at high speed is called

A) Wheel tramp B) High-speed shimmy

C) Wheel wobble D) Wander

Multiple radially worn areas around the fire is due to

A) Faulty shocks, loose/worn wheel bearings, severe balance issues, mismatched
pressures

B) Faulty shocks, lateral runout, loose wheel bearings, mismount

C) Incorrect air pressure, worn mechanical part, mismount

D) Misalignment, radial and lateral runout, severe out of balance, loose wheel
bearings

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