Logic gates

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14 questions

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- Q1What does an EX-OR gate do?Give a low output when only one of its inputs are high.Give a low output when one or more of its inputs are high.Give a high output when one or more of its inputs are high.Give a high output when only one of its inputs are high.45s
- Q2What does connecting together the inputs of NAND and NOR gates do?Produce and EXNOR gate.Damage the gate.Produce a NOT gate.Help produce multi-input gates.45s
- Q3How do you make a NAND gate out of an AND gate using inverters (NOT gates)?Invert the output from the AND gate.Invert one of the inputs to the AND gate.Invert both the inputs to the AND gate.Invert both the inputs and output of the AND gate.60s
- Q4How do you make a NOR gate out of an NAND gate using inverters (NOT gates)?Invert the output from the NAND gate.Invert both the inputs and output of the NAND gate.Invert both the inputs to the NAND gate.Invert one of the inputs to the NAND gate.45s
- Q5Identify the logic gate symbol shown.NAND gateNOR gateAND gateOR gate30s
- Q6What type of logic gate does this symbol represent?Exclusive NORNORExclusive OROR30s
- Q7The output of an AND gate with three inputs, A, B, and C, is HIGH when ________.A = 1, B = 0, C = 1A = 1, B = 1, C=1A = 1, B = 1, C = 0A = 0, B = 0, C = 045s
- Q8How many input combinations would a truth table have for a six-input AND gate?3216644860s
- Q9How many inputs of a four-input AND gate must be HIGH in order for the output of the logic gate to go HIGH?All four inputs.Any two of the inputs.Any three of the inputsAny one of the inputs.60s
- Q10The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n):Boolean variableInput logic functionTruth tableBoolean constant60s
- Q11The output of an OR gate with three inputs, A, B, and C, is LOW when ___A = 0, B = 0, C = 0A = 0, B = 0, C = 1All the answersA = 0, B = 1, C = 160s
- Q12The basic logic gate whose output is the complement of the input is the:AND gateinverterOR gateComparator60s
- Q13The Boolean expression for a 3-input OR gate is ________.X = A . B . CX = A . B + CX = A + BX = A + B + C30s
- Q14If a 3-input NAND gate has eight input possibilities, how many of those possibilities will result in a HIGH output?718460s