Engineering

Question 1

1An actuator

Easy

A. measures temperature B. converts a control signal into movement C. displays images D. stores data

Question 2

2The part of a computer that carries out instructions is the

Easy

A. power supply B. CPU C. monitor D. keyboard

Question 3

3Traffic lights controlled by a timer are an example of

Easy

A. an automated system B. a hand tool C. a renewable source D. manual control

Question 4

4A computer system built into a product to control it, such as in a washing machine, is

Easy

A. a supercomputer B. a server farm C. a spreadsheet D. an embedded system

Question 5

5Firmware in embedded systems is stored in

Easy

A. the cloud only B. RAM only C. paper D. non-volatile memory

Question 6

6Real-time embedded systems must

Hard

A. have no inputs B. use no sensors C. respond within strict time limits D. run only at night

Question 7

7A PLC is commonly used to

Easy

A. play music B. write essays C. browse the web D. control machines in factories

Question 8

8A rugged industrial computer used to control machines on a production line is a

Easy

A. scanner B. smartphone C. programmable logic controller (PLC) D. router

Question 9

9A microcontroller such as the Arduino contains

Easy

A. a hard disk B. only a battery C. only a screen D. a processor, memory and input/output pins on one chip

Question 10

10A thermostat that switches a heater on and off to keep a set temperature is an example of

Easy

A. open-loop control B. no control C. manual control D. closed-loop (feedback) control