Worksheets8210 POAET AV 20/001 Friday Morning
Total questions: 6
Worksheet time: 3mins
How can you prevent Chromatic Dispersion?
Using a light source of a single wavelength
By using a graded index fibre
By reducing the distance between transmitters and receivers
By increasing the thickness of the optical cladding
Which of these modes will take the most time to traverse a fibre optic cable?
High Mode
Low Mode
Which of these statement is true for a NTC thermistor
As temperature increases the resistance decreases in the thermistor
As temperature increases the resistance increases in the thermistor
As temperature decreases the resistance stabilises in the thermistor
As temperature decreases the current flow increases in the thermistor
What property in a wire strain gauge changes under tension?
Its resistance will increase
Its resistance will decrease
Its capacitance will increase
Its capacitance will decrease
Which of these components are essential for a digital communication network?
Select all correct answers
Transmitter
Relay
Medium
Protocol
Controller
Which of these statements are false regarding interrupts
Select all incorrect answers
A smart sensor will send an interrupt signal to the computer then its data on the same line.
A peripheral device after sending an interrupt signal will wait until the computer authorises it to send its data.
A smart sensor has two transmission lines to the controlling computer.
Interrupt is synchronous operation
