• No results found

NAND, NOR, EXOR NAND, NOR, EXOR

In document 1,Electrics for CPL (Page 52-56)

Basic knowledge of computers:Basic knowledge of computers:

B)  NAND, NOR, EXOR NAND, NOR, EXOR

C) NAND, INHIBITED AND, and OR C) NAND, INHIBITED AND, and OR D) OR, NAND and NOT

D) OR, NAND and NOT

For this diagram, choose the answer which For this diagram, choose the answer which correctly states the outputs from the logic correctly states the outputs from the logic circuit shown:

circuit shown: A)

A) Both C and D are equal to 0.Both C and D are equal to 0. B)

B) C=1 and D=0.C=1 and D=0.

C) Both C and D are equal to 1. C) Both C and D are equal to 1. D) C=0 and D=1.

D) C=0 and D=1.

The logic symbol shown represents an... The logic symbol shown represents an... gate. gate. A) NAND A) NAND B) NAND B) NAND C) XOR C) XOR D) D) NOT NOT

An OR gate is sometimes referred to as: An OR gate is sometimes referred to as: A) something or nothing - gate. A) something or nothing - gate. B) all or nothing - gate.

B) all or nothing - gate. C)

C) any or all any or all - gate.- gate.

D) anything goes - gate. D) anything goes - gate.

An EXCLUSIVE OR gate with only two inputs, which gives a high output when either input is 1, will: An EXCLUSIVE OR gate with only two inputs, which gives a high output when either input is 1, will: A)

A) give an output 0 when give an output 0 when both inputs are high.both inputs are high. B)

B) only give a high output when both inputs are at logic state 0.only give a high output when both inputs are at logic state 0. C)

C) give an output 0 when only one input is at logic state 1.give an output 0 when only one input is at logic state 1. D) also give a high output when both inputs are logic state 1. D) also give a high output when both inputs are logic state 1. The following symbol represents ... logic

The following symbol represents ... logic gate. gate. A) A) NAND NAND B) XOR B) XOR C) NOT C) NOT D) AND D) AND

A logic gates function is to: A logic gates function is to:

A) increase output power. A) increase output power. B)

B) close a set of switches in close a set of switches in a logical sequence.a logical sequence. C)

C) match the input to the match the input to the output.output. D)

D) send an appropriate output send an appropriate output depending on the inpudepending on the input.t. The smoke detection in the ai

The smoke detection in the ai rcraft cargorcraft cargo

compartments is carried out by four sensors: C1, C2, compartments is carried out by four sensors: C1, C2, C3 and C4. They are associated with

C3 and C4. They are associated with the logic circuitthe logic circuit as described by the diagram. The repeating bell is as described by the diagram. The repeating bell is activated when:

activated when: A)

A) the C1 and C3 sensors detect smokethe C1 and C3 sensors detect smoke B)

B) the C1 and the C1 and C2 sensors detect smokeC2 sensors detect smoke C) only one sensor detects smoke

C) only one sensor detects smoke

D) the C2 and C4 sensors detect smoke D) the C2 and C4 sensors detect smoke In computer technology, an output peripheral is a: In computer technology, an output peripheral is a: A) hard disk drive

A) hard disk drive B)

B) screen unit screen unit C) diskette drive C) diskette drive D) keyboard D) keyboard

For this diagram, choose the answer which

For this diagram, choose the answer which correctlycorrectly states the outputs from the logic circuit shown: states the outputs from the logic circuit shown: A) C=1 and D=0.

A) C=1 and D=0. B)

B) Both C and D are Both C and D are equal to 1.equal to 1. C) C=0 and D=1.

C) C=0 and D=1. D)

D) Both C and D Both C and D are equal to zare equal to zero.ero.

The following symbol represents an... logic The following symbol represents an... logic gate. gate. A) XNOR A) XNOR B) OR B) OR C) C) NOT NOT D) AND D) AND

The following symbol represents an... logic The following symbol represents an... logic gate. gate. A) NOT A) NOT B) B) OROR C) XNOR C) XNOR D) AND D) AND

What is an any or all gate? What is an any or all gate? A) XOR A) XOR B) NOT B) NOT C) NOR C) NOR D) D) OROR

In computer technology, a storage peripheral is a: In computer technology, a storage peripheral is a: A) screen unit A) screen unit B) printer B) printer C) key board C) key board D)

D) hard disk hard disk drivedrive

The following symbol represents an... logic The following symbol represents an... logic gate. gate. A) A) AND AND B) XNOR B) XNOR C) NOR C) NOR D) NOT D) NOT

Because of the input/output relationship of an OR gate, it is often referred to as the: Because of the input/output relationship of an OR gate, it is often referred to as the: A) " state indicator" gate.

A) " state indicator" gate. B)

B) " any or a" any or all" gate.ll" gate. C) " inhib

C) " inhibited" or " negated" gate.ited" or " negated" gate. D) " all or nothing" gate.

If a logic gate is referred to as an 'All Or Nothing' gate it i If a logic gate is referred to as an 'All Or Nothing' gate it i s:s: A)

A) an AND-gate. an AND-gate. B) an XNOR-gate. B) an XNOR-gate. C) an OR-gate. C) an OR-gate. D) an XOR-gate. D) an XOR-gate.

In computer technology, an input peripheral is a: In computer technology, an input peripheral is a: A) screen unit

A) screen unit B) diskette drive B) diskette drive C) hard disk drive C) hard disk drive D)

D) keyboard keyboard

41. The function of a NOT logic gate within a circuit is 41. The function of a NOT logic gate within a circuit is to:to:

A)

A) invert the input signal such that the output is always of the opposite state. invert the input signal such that the output is always of the opposite state.

B) ensure the input signal is DC

B) ensure the input signal is DC only.only. C) ensure the input signal is AC only. C) ensure the input signal is AC only. D)

D) ensure the output signal is of the same ensure the output signal is of the same state as the input signal.state as the input signal. A bar above a logic gate input letter indicates:

A bar above a logic gate input letter indicates: A) a negated input. A) a negated input. B) an inhibited input. B) an inhibited input. C) a prohibited input. C) a prohibited input. D)

D) an inverted an inverted input.input. Which logic gate is

Which logic gate is equivalent to the following combination:equivalent to the following combination: A) NAND A) NAND B) XOR B) XOR C) OR C) OR D) D) NOR NOR

For this diagram, choose the answer For this diagram, choose the answer which correctly states the outputs from which correctly states the outputs from the logic circuit shown:

the logic circuit shown:

A) Both C and D are equal to 1. A) Both C and D are equal to 1. B) C=1 and D=0.

B) C=1 and D=0. C)

C) Both C and D Both C and D are equal to 0.are equal to 0. D) C=0 and D=1.

In document 1,Electrics for CPL (Page 52-56)

Related documents