60601. A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?
60602. Implementing the expression using NAND logic, we get:
60603. Concrete for road construction recommended slump is------
60604. Implementation of the Boolean expression results in ________.
60605. How many 2-input NOR gates does it take to produce a 2-input NAND gate?
60606. A logic circuit with an output consists of ________.
60607. The output of a NAND gate is LOW when all inputs are HIGH at the same time.
60608. When the output of an AND-OR circuit is complemented, it results in an AND-OR-Invert circuit.
60609. If one input to a 2-input AND gate is HIGH, the output reflects the other input.
60610. A NAND gate can function as a negative-OR gate.
60611. An AND gate is a universal gate.
60612. A NOR gate is a universal gate.
60613. An exclusive-OR gate's output is HIGH when its inputs are equal.
60614. A VHDL component is a predefined logic function.
60615. The output of an AND gate is HIGH when any input is HIGH.
60616. A NOR gate's truth table is the opposite of that of an OR gate.
60617. Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation is ________.
60618. The symbol shown represents a(n) ________.
60619. A gate can drive a number of load gate inputs up to its specified ________.
60620. The expression can be directly implemented using only ________.
60621. The symbol shown represents ________.
60622. If both inputs of a 2-input NOR gate are connected, the gate will function as an ________.
60623. Assume that you have a 3-input NAND gate but need only a 2-input gate. The unused input should be ________.
60624. A node is defined as ________.
60625. Using the universal property of a NAND gate, one or more NAND gates can be used to replace an ________.
60626. The inclined or splayed surface of the abutement of an arch is called
60627. The output of an exclusive-NOR gate is 1. Which input combination is correct?
60628. The Boolean SOP expression obtained from the truth table below is ________.
60629. The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A – H) is correct?
60630. Implementing the expression AB + CDE using NAND logic, we get:
60631. Convert BCD 0001 0010 0110 to binary.
60632. Convert BCD 0001 0111 to binary.
60633. Which of the figures in figure (a to d) is equivalent to figure (e)?
60634. How many data select lines are required for selecting eight inputs?
60635. How many 1-of-16 decoders are required for decoding a 7-bit binary number?
60636. The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity. (Select the response for the blank space that will BEST make the statement true.)
60637. Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
60638. For the device shown here, assume the D input is LOW, both S inputs are HIGH, and the input is HIGH. What is the status of the outputs?
60639. The wedge-shaped units forming the courses of an arch is-----------
60640. As a technician you are confronted with a TTL circuit board containing dozens of IC chips. You have taken several readings at numerous IC chips, but the readings are inconclusive because of their erratic nature. Of the possible faults listed, select the one that most probably is causing the problem.
60641. Which gate is best used as a basic comparator?
60642. The device shown here is most likely a ________.
60643. In VHDL, macrofunctions is/are:
60644. Which of the following expressions is in the product-of-sums form?
60645. Which of the following is an important feature of the sum-of-products form of expressions?
60646. For the device shown here, assume the D input is LOW, both S inputs are LOW, and the input is LOW. What is the status of the outputs?
60647. An output gate is connected to four input gates; the circuit does not function. Preliminary tests with the DMM indicate that the power is applied; scope tests show that the primary input gate has a pulsing signal, while the interconnecting node has no signal. The four load gates are all on different ICs. Which instrument will best help isolate the problem?
60648. The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator. What are the output levels?
60649. A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?
60650. Two 4-bit binary numbers (1011 and 1111) are applied to a 4-bit parallel adder. The carry input is 1. What are the values for the sum and carry output?
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