QuestionApril 29, 2025

Technician A says that some head bolts can be reused. Technician B says that some head bolts are torqued to their yield point. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Technician A says that some head bolts can be reused. Technician B says that some head bolts are torqued to their yield point. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B
Technician A says that some head bolts can be reused. Technician B says that some head bolts are torqued to their yield point. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Solution
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Answer

c. Both Technician A and Technician B Explanation 1. Understanding Head Bolts Head bolts are used to secure the cylinder head to the engine block. Some head bolts can be reused if they are not designed to stretch or reach their yield point during installation. These are typically referred to as "non-stretch" or "standard" bolts. 2. Yield Point of Head Bolts Some head bolts are designed to be torqued to their yield point, meaning they stretch and cannot be reused. These are known as "torque-to-yield" bolts and must be replaced after removal because they have permanently deformed. 3. Evaluating Technicians' Statements Technician A is correct in stating that some head bolts can be reused, specifically non-stretch bolts. Technician B is also correct in stating that some head bolts are torqued to their yield point, referring to torque-to-yield bolts.

Explanation

1. Understanding Head Bolts<br /> Head bolts are used to secure the cylinder head to the engine block. Some head bolts can be reused if they are not designed to stretch or reach their yield point during installation. These are typically referred to as "non-stretch" or "standard" bolts.<br /><br />2. Yield Point of Head Bolts<br /> Some head bolts are designed to be torqued to their yield point, meaning they stretch and cannot be reused. These are known as "torque-to-yield" bolts and must be replaced after removal because they have permanently deformed.<br /><br />3. Evaluating Technicians' Statements<br /> Technician A is correct in stating that some head bolts can be reused, specifically non-stretch bolts. Technician B is also correct in stating that some head bolts are torqued to their yield point, referring to torque-to-yield bolts.
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