Explain decimal tolerances.
What will be an ideal response?
Decimal tolerances can be applied in both the English and the metric systems of measurement. Tolerances on decimal dimensions that are expressed in terms of two, three, four, or more decimal places may be given on a drawing in several ways. One of the common methods of specifying a tolerance that applies on all dimensions is to use a note.
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If a fillet is shown on both sides of the joint, it is identified as a(n) ____________________ fillet weld.
Fill in the blank(s) with the appropriate word(s).
Which of the following is an NEC Article 427 requirement for the installation of electrical heat-tracing cables on pipe and vessels in unclassified areas?
a. The external surfaces of any equipment that operates at temperatures above 100°F (38°C) must be physically guarded, isolated, or thermally protected. b. Branch circuits and overcurrent devices supplying the equipment must be sized at no less than 100 percent of the total heater load. c. The heating cable cannot be allowed to make direct contact with the pipe or vessel. d. The presence of electric heating equipment must be identified using permanent caution signs or markings at the specified intervals.
Flowering shrubs develop next year's buds during the early spring
Indicate whether the statement is true or false
Which inventor is credited with the development of the cotton gin?
a. John Deere c. Thomas Jefferson b. Eli Whitney d. Cyrus McCormick