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Multiple Choice Quiz
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1.
If the inputs to this arithmetic circuit are both HIGH, the outputs will be Sum = ___ and Co = ___.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073126349/443700/image020.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
A)0, 0
B)0, 1
C)1, 0
D)1, 1
2.
Adding the 4-bit 2s complement numbers 0001 + 1101 yields a 2s complement sum of ___ which is ___ in decimal.
A)1110, +13
B)1110, -2
C)0001, +1
D)1110, -13
3.
The carry line between the 1s half adder and the 2s full adder circuit will be ___ during this problem.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073126349/443700/image021.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (5.0K)</a>
A)HIGH
B)LOW
C)Cannot be determined
D)Both A and B
4.
The 4-bit 2s complement number 0111 represents ___ in decimal.
A)–6
B)–8
C)8
D)7
5.
The 4-bit 2s complement number 1001 represents ___ in decimal.
A)-1
B)-2
C)9
D)–7
6.
This combinational logic circuit is called a(n) ___.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0073126349/443700/image020.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
A)Multiplexer
B)Full adder
C)Half adder
D)Full subtractor
7.
The difference between the binary numbers 11100 and 110 is ___.
A)10110
B)1111
C)11100
D)11000
8.
The sum of the binary numbers 1100 1100 and 0010 0111 is
A)1111 1111
B)1100 1111
C)1111 0011
D)1111 0000
9.
Both the sign and magnitude of a binary number can be given using ___ representations.
A)2s complement
B)1s complement
C)Octal
D)ASCII
10.
What is the output from this 2-bit adder circuit?
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A)0
B)1
C)10
D)11





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