Examkin

Soru

Zorluk: OrtaIdentifying Implied Meanings

During heavy engine overhauls, technicians chill replacement cylinder liners in an industrial freezer while warming the engine block with radiant heating blankets before assembly. When properly treated, the liners slide into the engine block bores by hand without mechanical force. Within hours of returning to ambient room temperature, the components achieve an airtight, permanent fit that cannot be disassembled without specialized cutting tools.

Which of the following does the passage imply regarding the dimensions of the components at normal room temperature?

  1. The outer diameter of the cylinder liner is slightly larger than the diameter of the engine block bore.Cevap
  2. B
    The engine block bore permanently changes shape once heat is removed.
  3. C
    Mechanical pressing force must be applied simultaneously with the heating blankets during installation.
  4. D
    Specialized cutting tools are required to secure the components during assembly.

Cevap

The outer diameter of the cylinder liner is slightly larger than the diameter of the engine block bore.
The passage describes chilling the liner (which contracts metal) and heating the block (which expands openings) to allow them to slip together, followed by a permanent locking effect once both return to ambient temperature. This directly implies that under normal room temperature conditions, the outer diameter of the liner is slightly larger than the bore.

Adım Adım Çözüm

1
Analyze the thermal conditions required for assembly
Technicians must freeze the liner (causing it to shrink) and heat the block (causing it to expand) so they can fit together easily.
Understanding why temperature modification is necessary reveals the baseline physical relationship between the two parts.
2
Evaluate the effect of returning to ambient room temperature
As temperatures normalize, the liner expands and the block contracts, creating an immovable, permanent joint.
This confirms that under standard room temperature conditions, the liner is too large to slide freely into the bore.
3
Identify the unstated logical implication
At ambient temperature, the outer diameter of the liner exceeds the diameter of the bore.
An interference fit requires the inner component to have a larger resting dimension than the mating hole.

Anahtar Kavram

Identifying implied spatial relationships and physical behaviors from stated operational procedures
Tahmini Süre:1m 0s
Bu soruyu puanla

Konular

Identifying Implied Meanings

Bu konudan daha fazla soru