KIG3001 MIDTERM TEST 2022 2023 Sem 1

What is the definition of measurement?

• A method to obtain information regarding the physical values of the variable.

• A physical representation of a unit of measurement.

• A mathematical expression of dynamic relationship between input and output of a system.

• A method to obtain information regarding the digital signal.

Which of the following is a true definition of sensor?

• Electronic transducer that converts electrical energy into mechanical energy.

• Electronic transducer that converts physical quantity into electrical signal.

• Electronic transducer that converts analog signal into digital signal.

• Electronic transducer that converts physical quantity into mechanical signal.

What is the main advantage of a digital measurement over a manual measurement?

• No software is needed

• Free from observational errors

• No hardware is needed

• None of the above

Which of the following orders is correct for the measurement process using a digital processor?

• Sensor > Hardware Interface (DAQ) > Software Interface (Driver) > Processor

• Sensor > Software Interface (Driver) > Hardware Interface (DAQ) > Processor

• Hardware Interface (DAQ) > Sensor > Hardware Interface (Driver) > Processor

• Hardware Interface (Driver) > Sensor > Hardware Interface (DAQ) > Processor

Which of the following statements is related to the main objective of having data acquisition?

• To process sampling signals that measure real world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer.

• To understand the quality characteristics of measurement.

• To define the requirements of the measurement system.

• All of the above.

What is the definition of physical quantity?

• Quantities that cannot be defined in term of other physical quantities.

• Quantities derived from combination of base quantities through multiplication or division or both.

• Quantity that cannot be measured.

• Quantity that can be measured.

Which of the following analyses is NOT related to the quality of measurement?

• Resolution

• Accuracy

• Linearity

• Durability

Which of following is the main advantages of virtual instrument over traditional instrument?

• Rigid instrument

• Cost reduction

• Stable system

• None of the above

What is the definition of Active Sensor?

• A sensor that requires external power to operate.

• A sensor generates its own electric signal and does not require a power source.

• A sensor that requires physical contact with the stimulus.

• A sensor that reacts to a stimulus on an absolute scale.

What is the definition of Contact Sensor?

• A sensor that requires external power to operate.

• A sensor generates its own electric signal and does not require a power source.

• A sensor that requires physical contact with the stimulus.

• A sensor that reacts to a stimulus on an absolute scale.