Robotics

Question 1

1A voltage divider with 10 kΩ and 20 kΩ across 9 V gives across the 20 kΩ resistor

Hard

A. 9 V B. 4.5 V C. 3 V D. 6 V

Question 2

2Which list gives four organisational performance indicators often used to judge the effect of robots at work?

Easy

A. profit, tax, rent and wages B. price, quality, flexibility and innovation C. safety, noise, heat and light D. speed, colour, size and weight

Question 3

3Lithium-polymer (LiPo) batteries should be charged

Easy

A. when punctured B. with a proper balance charger and never left unattended C. with any phone charger D. inside a closed tin box while you sleep

Question 4

4A loose wire in a robot circuit can cause

Easy

A. longer battery life B. intermittent faults C. faster motors D. better sensing

Question 5

5A thermostat is an example of

Easy

A. open-loop control B. no control C. manual control only D. closed-loop control

Question 6

6A pulley system with a belt transfers motion between

Easy

A. two meshing gears directly B. a wheel and the floor C. two shafts some distance apart D. a sensor and a battery

Question 7

7In a flowchart, the start and the end of an algorithm are shown with

Easy

A. an oval (terminator) B. a diamond C. a rectangle D. a parallelogram

Question 8

8A Geneva drive turns continuous rotation into

Medium

A. heat B. an electrical signal C. intermittent (step-by-step) rotation D. continuous linear motion

Question 9

9In the Arduino IDE, the tick (checkmark) button

Easy

A. saves the sketch B. verifies (compiles) the code and checks for errors C. opens the Serial Monitor D. uploads the code to the board

Question 10

10In a circuit, a capacitor

Medium

A. lets current flow in one direction only B. blocks steady direct current but lets alternating current pass C. amplifies signals D. gives out light