snuggleshub.com – MCQs, Mock Tests | Analytical instruments Analytical Instrumentation MCQ Question Set 27

TTL stands for _____

1. Transistor-triode-logic
2. Triode-transistor-logic
3. Triode-triode-logic
4. Transistor-transistor-logic

✅ Correct Answer: 4

Which of the following is correct for digital devices?

1. Single stable logic level
2. Double stable logic level
3. Triple stable logic level
4. Infinite stable logic level

✅ Correct Answer: 2

Which of the following gate act as inverter?

1. AND gate
2. OR gate
3. NOT gate
4. NAND gate

✅ Correct Answer: 3

Unity-gain amplifier is the equivalent of ______

1. Inverter
2. Driver
3. Amplifier
4. Rectifier

✅ Correct Answer: 2

Which of the following represents â€˜inhibitâ€™ gate?

1. AND gate
2. NAND gate
3. OR gate
4. NOR gate

✅ Correct Answer: 1

In op-amp IC negative saturation is defined by _______

1. Logic High
2. Logic Low
3. Inverter
4. None of the mentioned

✅ Correct Answer: 2

Which of the following is equivalent to voltage-controlled switch?

1. Inverter gate
2. Drier gate
3. Transmission gate
4. None of the mentioned

✅ Correct Answer: 3

OR gate has high output if ______

1. One input is low
2. One input is high
3. All of the mentioned
4. None of the mentioned

✅ Correct Answer: 2

Driver has high output level when_______

1. Input is high
2. Input is high
3. All of the mentioned
4. None of the mentioned

✅ Correct Answer: 2

One flip-flop unit can store __________ of data.

1. One nibble
2. One bit
3. One byte
4. One kilo-bit

✅ Correct Answer: 2

SR flip-flop stands for _______

1. State-reset
2. Set-reset
3. Set-recovery
4. Set-reset

✅ Correct Answer: 4

Which of the following represents D flip flop?

1. Data flip flop
2. Delay flip flop
3. Direct flip flop
4. Decode flip flop

✅ Correct Answer: 2

SR flip flop have undefined state when________

1. Both inputs are low
2. Both inputs are high
3. One input is low
4. None of the mentioned

✅ Correct Answer: 2

Latch is a circuit which operates according to a clock pulse.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

Race around condition can be rectified by ________

1. SR flip flop
2. JK flip flop
3. JK master slave flip flop
4. D flip flop

✅ Correct Answer: 3

Which of the following is an application of flip-flop?

1. Shift register
2. Latch
3. Gates
4. All of the mentioned

✅ Correct Answer: 1

If SET pin is active, output becomes _____

1. High
2. Low
3. Undefined
4. None of the mentioned

✅ Correct Answer: 1

In SR flip flop if both inputs are low, output becomes ______

1. High
2. Low
3. No change
4. Undefined

✅ Correct Answer: 3

Which of the following is not a sequential circuit?

1. Flip flop
2. Counter
3. Logical gate
4. Shift register

✅ Correct Answer: 3

Which of the following is correct for data transfer in shift register?

1. Serial manner
2. Parallel manner
3. Both serial and parallel
4. None of the mentioned

✅ Correct Answer: 3

Which of the following is correct for serial mode shift register?

1. One bit per clock pulse
2. One byte per clock pulse
3. Two bit per clock cycle
4. Unpredictable

✅ Correct Answer: 1

Which of the following flip flops can be used for making shift registers?

1. T flip flop
2. JK flip flop
3. SR flip flop
4. All of the mentioned

✅ Correct Answer: 4

Which of the following is not a valid BCD?

1. 0110
2. 0111
3. 1000
4. 1010

✅ Correct Answer: 4

Which of the following have high propagation delay?

1. Synchronous counter
2. Asynchronous counter
3. Both have the same propagation delay
4. Both have an unpredictable propagation delay

✅ Correct Answer: 2

Asynchronous counters does not need a clock pulse.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

In a BCD counter count 1010 corresponds to _______

1. Ten
2. Zero
3. Two
4. One

✅ Correct Answer: 2

What will be the final count value if 10 flip flops are used?

1. 100
2. 1024
3. 1023
4. 99

✅ Correct Answer: 3

Read in data of shift register will be ______

1. Serial
2. Parallel
3. Both serial and parallel
4. Unpredictable

✅ Correct Answer: 1

Each flip flop in shift register act as________

1. Frequency multiplier
2. Frequency divider
3. Frequency doubler
4. Frequency adder

✅ Correct Answer: 2

A decoder converts n inputs to __________ outputs.

1. n
2. n2
3. 2n
4. nn

✅ Correct Answer: 3

Which of the following are building blocks of encoders?

1. NOT gate
2. OR gate
3. AND gate
4. NAND gate

✅ Correct Answer: 2

Which of the following can be represented for decoder?

1. Sequential circuit
2. Combinational circuit
3. Logical circuit
4. None of the mentioned

✅ Correct Answer: 2

BCD to seven segment conversion is a _____

1. Decoding process
2. Encoding process
3. Comparing process
4. None of the mentioned

✅ Correct Answer: 1

Which of the following is a decoder IC?

1. 7890
2. 8870
3. 4047
4. 4041

✅ Correct Answer: 2

DTMF stands for _______

1. Dual Tone Magnetic Frequency
2. Double Tone Magnetic Frequency
3. Dual Tone Multiple Frequency
4. Dual Tone Mechanical Frequency

✅ Correct Answer: 3

Invalid BCD can be made to valid BCD by adding with ________

1. 0101
2. 0110
3. 0111
4. 1001

✅ Correct Answer: 2

Decoder is constructed from _________

1. Inverters
2. AND gates
3. Inverters and AND gates
4. None of the mentioned

✅ Correct Answer: 3

Which of the following represents a number of output lines for a decoder with 4 input lines?

1. 15
2. 16
3. 17
4. 18

✅ Correct Answer: 2

Decoders and Encoders are doing reverse operation.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

Which of the following are used in DAC?

1. Ladder network
2. Successive approximation technique
3. Both Ladder and successive approximation technique
4. None of the mentioned

✅ Correct Answer: 1

Which of the following is an indication by settling time?

1. Accuracy of conversion
2. Speed of conversion
3. Precision in conversion
4. All of the mentioned

✅ Correct Answer: 2

Filling data between impulses in DAC is known as _______

1. Reconstruction
2. Sampling
3. Interpolation
4. None of the mentioned

✅ Correct Answer: 3

Which of the following represents over sampling DAC?

1. PWM DAC
2. Delta-sigma DAC
3. Binary weighted DAC
4. Switched resistor DAC

✅ Correct Answer: 2

Which of the following is a binary weighted DAC?

1. R-2R ladder DAC
2. PWM DAC
3. Switched resistor DAC
4. Sampling DAC

✅ Correct Answer: 1

Segmented DAC uses ____________

1. Thermometer coded principle conversion only
2. Binary weighted principle only
3. Both thermometer coded and Binary weighted principle
4. None of the mentioned

✅ Correct Answer: 3

Ability of analog output to move only in the direction of digital input move is known as _______

1. Monotonicity
2. Resolution
3. Sampling rate
4. Dynamicity

✅ Correct Answer: 1

Dynamic range is expressed in _______

1. Volts
2. Ampere
3. Hz
4. Decibel

✅ Correct Answer: 4

Thermal noise is absent in DAC.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

SFDR stands for _______

1. Spurious free dielectric range
2. Signal free dynamic range
3. Spurious free dynamic range
4. None of the mentioned

✅ Correct Answer: 3

Typical conversion speed of ADC is ______

1. Less than 1Âµs
2. Less than 100 Âµs
3. Less than 500 Âµs
4. Greater than 1000 Âµs

✅ Correct Answer: 2

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Analytical Instrumentation MCQ Question Set 27