DJM50113 Test 1: Industrial Automation Assessment 2025

INSTRUCTION: Answer all FOUR questions.

QUESTION 1

a) Describe the following types of robot movement. [6 Marks]
i. Cartesian
ii.Cylindrical
iii. Polar

b) Identify THREE (3) functions of automation system in terms of safety monitoring. [6 Marks]

QUESTION 2

a)An end effector is the device at the end of the robotic arm, designed to interact with the environment. Name TWO (2) types of an effector and give TWO (2) examples for each type. [6 Marks]
b)Stepper motors are used in a wide variety of home devices, commercial equipment and industrial applications. Discuss FOUR (4) basic principles of stepper motor operations. [8 Marks]

QUESTION 3

a)External sensors can be categorized into two types of sensors which are contact and non-contact sensors.
i. Explain these two categories of sensors.
ii.Give ONE (1) example for each category [2 Marks]

b) Encoder is used to provide a digital output in response to a linear or angular displacement. Discuss TWO (2) types of position encoders. [7 Marks]

QUESTION 4

a) Identify THREE (3) types of system configurations in Automated Assembly Systems. [6 Marks]

b) A hydraulic cylinder operated a stamping machine starts to stamp out metal plate by pressing two push buttons (S1 and S2) together (see Figure 1). Once it stamps out the metal plate, the hydraulic cylinder, Q1 returns to its initial position. A red light, Q2 will be switched ON when the stamp is stamping and switched off when the stamping is at rest. The machine would not work if the safety door, S3 is not closed properly. Categorize input and output devices of this stamping machine. [5 Marks]

External sensors can be categorized into two types of sensors which are contact and non-contact sensors. i. Explain these two categories of sensors. ii.