Virtual Instrumentation Mcq ((hot)) -
A. The physical chassis front and the internal wiring schematic of the DAQ card.
These questions cover the basic definition, architecture, and philosophy of VI.
Explanation: Flexibility is key. The end-user programs the instrument's behavior to suit specific needs, unlike traditional fixed-function devices. virtual instrumentation mcq
Explanation: Shift registers (on the left border of a For/While loop) remember values from previous iterations.
A) Increased accuracy B) Reduced costs C) Improved flexibility D) All of the above Explanation: Flexibility is key
Which hardware standard is specifically optimized for high-performance, modular instrumentation and features advanced timing and synchronization lines? A. Standard USB 2.0. B. PXI (PCI eXtensions for Instrumentation). C. RS-232 Serial communication. D. Parallel LPT port.
A. A software simulation of an instrument that cannot interface with real hardware. A) Increased accuracy B) Reduced costs C) Improved
B. The user interface (inputs/outputs) and the underlying graphical source code.
Explanation: An anti-aliasing low-pass filter removes frequencies above the Nyquist limit before the ADC.
[ Physical Phenomenon ] (e.g., Temperature, Pressure) │ ▼ [ Sensor ] (e.g., Thermocouple, Strain Gauge) │ (Raw Analog Signal) ▼ [ Signal Conditioning ] (Amplification, Filtering, Isolation) │ (Conditioned Analog Signal) ▼ [ Data Acquisition (DAQ) ] (Multiplexing, ADC Conversion) │ (Digital Data Stream via PXI/PCIe/USB) ▼ [ Computer / Host PC ] ┌────────────────────────────────────────┐ │ [ Driver Software ] (e.g., NI-DAQmx) │ │ [ Application Software ] (e.g., LabVIEW)│ │ [ Front Panel / Graphical UI ] │ └────────────────────────────────────────┘ Components of the Pipeline
