Engine Repair (A1)第 12 / 120 题
Head bolts that use a torque-to-yield (TTY) design should be:
a.Reused indefinitely
b.Torqued to half the final value only
c.Replaced with new bolts during reassembly
d.Coated with anti-seize before reuse
解析
Torque-to-yield bolts are stretched into their plastic range for a uniform clamp load and should not be reused. Reusing them risks uneven clamping and gasket failure. Always follow the specified torque-plus-angle sequence with new bolts.
免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- A radiator pressure cap raises the system's boiling point primarily because:
- Blue smoke from the exhaust under acceleration most often indicates:
- Technician A says timing-chain stretch can retard valve timing and set a camshaft/crankshaft correlation code. Technician B says a stretched timing chain has no effect on engine performance. Who is correct?
- The main function of engine oil, besides lubrication, includes all of the following EXCEPT:
- A rhythmic knocking noise that is loudest under load and disappears when one cylinder is disabled most likely indicates:
- Coolant is leaking internally and the engine oil appears milky. The MOST likely cause is: