(SEM III) THEORY EXAMINATION 2019-20 SENSOR AND INSTRUMENTATION

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.