About this previous year paper
This document is the B.Tech Semester–III Theory Examination 2019–20 question paper for Sensor and Instrumentation (Sub Code: KOE034) under Dr. A.P.J. Abdul Kalam Technical University (AKTU).
The uploaded paper consists of two pages, formatted into the standard AKTU pattern of SECTION A, SECTION B, and SECTION C.
The total marks are 100, and the exam duration is 3 hours.
The paper evaluates core concepts of sensing devices, data acquisition, errors, smart sensors, virtual instrumentation, DAQ systems, sigma-delta converters, LABVIEW functions, Hall effect sensors, and industrial measurement systems.
SECTION A — Short Questions (10 × 2 = 20 Marks)
(Visible clearly on Page 1)
This section contains ten 2-mark questions, testing conceptual understanding of basic sensor and instrumentation topics.
Topics include:
Definition and explanation of an accelerometer
Classification of errors
Meaning of virtual instrumentation system
Concept and applications of smart sensors
Basic elements of a measurement system
Meaning of plug-in DAQ devices
Use of data sockets for networked communication
Types of signals compatible with DAQ systems
Distinguishing chart vs graph
Difference between commercial vs traditional instruments
These questions appear in a structured table on Page 1.
SECTION B — Descriptive Questions (Any 3 × 10 = 30 Marks)
(Located on Page 1, bottom section)
Students must attempt any three out of five 10-mark questions.
Topics include:
Features of LABVIEW and how it measures input signals
Position measurement using Hall Effect sensors
Working principle of diversity flow sensors
Block diagram and explanation of DAQ system
Applications & working of analog-to-digital converters (ADC)
These require explanation, diagrams, and detailed reasoning.
SECTION C — Applied & Advanced Questions (Q6 & Q7)
(Visible on Page 2)
This section contains two main questions, each with two alternatives (a or b).
Students must attempt one part from each.
Each question carries 10 marks.
Q6 — Data Acquisition / ADC Methods
(Page 2)
(a) Draw and explain the basic block diagram of a DAQ system.
(b) Explain successive approximation and sigma-delta ADC methods.
Q7 — Smart Sensors & Applications
(Page 2)
(a) Explain the general structure of smart sensors and their components.
(b) Write applications of smart sensors in:
Automatic robotic control
Automobile engine control
Both parts focus on modern intelligent sensing systems.
SENSOR-AND-INSOVERALL SUMMARY OF THE DOCUMENT
The Sensor and Instrumentation (KOE034) exam paper evaluates:
Fundamental sensor definitions and characteristics
Types and classification of instrument errors
Virtual instrumentation
Smart sensors & advanced sensor technology
Measurement system components
DAQ devices and signal interfacing
LABVIEW features
Hall Effect sensors
Flow sensors
ADC types: SAR, Sigma-Delta
Applications in automation, robotics, and automotive systems
The uploaded document spans two pages, containing structured questions, diagrams indicated in text, and clearly formatted sections.