Why is spring squareness important and how is it checked?
What will be an ideal response?
Springs that are not square can put excessive side pressure on the valve stems. This pressure can cause wear and stress on the stem, guide, and valve seat. Squareness is checked by placing the spring next to a square and rotating.
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One of the greatest advances in food preservation is _________, which was developed so troops in the field could receive food delivered over long distances
Fill in the blank(s) with correct word
What are the four purposes of oil?
What will be an ideal response?
What is meant by the “critical point” of refrigerants like CO2?
a. The temperature above which it can’t condense no matter how high the pressure. b. The temperature where it exists in 3 states: liquid, vapor, and solid. c. The temperature at which it may explode if too much pressure is applied.
Technician A says an out-of-balance crankshaft must be replaced. Technician B says weight can be added or removed from a crankshaft journal to correct an out-of-balance condition. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B