Which of the following is not true regarding drawing revisions?
A. A drawing can be modified once an ECR is signed and submitted.
B. All departments concerned must agree to the change.
C. A drafter can change his/her own drawing after it has been released and signed off.
D. Minor changes to drawings could be simple erasures or additions made directly on the original.
Answer: C
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Pieces each 3.5 inches long are to be cut from lengths of bar stock. Allowing 0.10 inch for cutoff per piece, how many complete pieces can be cut from 10 8-foot lengths of stock?
Fill in the blank(s) with the appropriate word(s).
Leaves can be ____ (a basic leaf consisting of one entire unit) or ____ (two or more units called
leaflets).
a. simple; compound b. simple; auxiliary c. palmately compound; pinnately compound d. palmately compound; compound
Answer the following statement(s) true (T) or false (F)
1. Solid-state devices are made by combining P- and N-type materials together. 2. The diode is the simplest of all electronic devices. 3. The diode operates like an electric check valve in that it will permit current to flow through it in two directions. 4. The most common use of diodes in industry is to construct a rectifier. 5. Zener diodes are special diodes that have a high reverse voltage breakdown rating.
Which one of the following statements is not true for the PLC 5 and SLC 500 counters?
A) Counters store negative values in the in 2's complement format. B) The PRE is 16 bit integer memory register that stores the count value or set point for the number of counts to trigger an output. C) The ACC stores the count value by incrementing one count for every true to false change in the counter ladder rung. D) A reset instruction (RES) is used to return the ACC to zero.