Bores of machined parts such as gears and pulleys are not made by drilling in a lathe without further machining because drills:
A) Tend to produce undersized holes that run eccentric to the workpiece axis
B) Tend to produce oversize holes that run eccentric to the workpiece axis
C) Are not made for standard shaft sizes
D) Make bell mouthed holes that must be corrected by reaming or boring
B
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What kind of geometric characteristic symbol is shown in Figure 6?
a. Datum
b. Flatness
c. Parallelism
d. Straightness
¿Cuál de las siguientes operaciones se realiza comúnmente con una grapadora neumática en lugar de una clavadora?
a. Instalación de terminaciones b. Instalación de aislantes c. Construcción de armarios d. Instalación de estructuras interiores
What is heat reclaim?
a. Recycling condenser air for heating the store. b. Using discharge vapor to heat the store or its domestic water. c. Using sub-coolers to remove heat from the liquid refrigerant.
What is the amount of time added to or subtracted from Coordinated Universal Time to determine local time?
A. Civil time B. Greenwich Mean Time (GMT) C. Time offset D. Daylight savings time