The tie-in of weld metal to base metal on a completed weld should be _____
A) discolored B) smooth C) soft D) rough
B
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To construct a binary up-counter out of J-K flip-flops with a count sequence of 0-1-2-3-4-5, which gate must be used to reset all flip-flops?
A) a NAND gate connected to outputs 20 and 22 B) a NOR gate connected to outputs 21 and 22 C) a NAND gate connected to outputs 21 and 22 D) a NAND gate connected to outputs 20 and 21
A continuous-time filter with a transfer function 
is approximated by a digital filter designed using both the direct substitution and matched z-transform methods. Then the digital filters are used as the forward-path transfer functions 
in two discrete-time feedback systems both with feedback transfer functions 
The gain K is gradually increased from 0 upward. Which system will go unstable at a finite value of K? Explain your answer.
What will be an ideal response?
A broken line of medium thickness is known as a(n) ____ line.
A. hidden B. object C. center D. leader
What is the name of a triangle with one obtuse angle and two acute angles?
What will be an ideal response?