Which four elements compose 96 percent of Earth's total mass?
a. oxygen, carbon, hydrogen, and iron
b. oxygen, silicon, nitrogen, and aluminum
c. carbon, iron, nitrogen, and silicon
d. oxygen, nitrogen, hydrogen, and carbon
D
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? In profile extrusion,to produce exact cross-sectional dimensions after the extrudate has cooled, allowances must be made in the ____ design.
A. ?barrel B. ?screw C. ?blower D. ?orifice
Answer the following statement(s) true (T) or false (F)
1. A silent alarm is more desirable than an audible alarm. 2. Maglocks are always fail-secure. 3. Typically, access control systems only require one power supply . 4. Diodes are used to protect against inductive kick on an electronic strike. 5. You will never connect a magnetic lock directly to AC of any voltage.
Which of the following statements are true about quality?
I. Quality can be inspected into a product. II. Poor quality has no effect on work flow. III. The process must be capable of producing the required quality consistently. IV. Machinery must be maintained in excellent condition. A) I, II, III and IV B) II and III only C) I and IV only D) III and IV only E) I and II only
List four vehicle accessories.
What will be an ideal response?