App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 219 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) pay for the order (b) pick a dish (c) open the menu (d) check the cart
2. 2.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) icons with no labels (d) tiny tap areas
3. 3.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
4. 4.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ top bar ]
   [ list of items ]
   [ search box ]
   [ Save button ]
   [ title text ]
   [ tab bar ] (a) title text (b) Save button (c) top bar (d) tab bar
5. 5.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
6. 6.💾 What number does this code show?
   let stars = 8;
   stars = stars - 7;
   stars = stars + 1;
   show(stars);
7. 7.True or false: notes to read offline fits saving in the cloud. (a) False (b) True
8. 8.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) sits at the bottom (d) opens a list of pages
9. 9.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
10. 10.🔍 Which is the odd one out? (a) the font size (b) the theme colours (c) how many taps it takes (d) the icon shapes
11. 11.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) track the order (b) open the menu
12. 12.🔢 In a quiz-app flow, which comes FIRST? (a) see the final score (b) tap “Start quiz” (c) read a question (d) pick an answer
13. 13.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) the back button (c) a tab bar
14. 14.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. tap the Feed tab
    4. tap the Feed tab
    5. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
15. 15.Which colour pair is hard to read? (a) white on black (b) dark blue on white (c) black on yellow (d) yellow on white
16. 16.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ list of items ]
    [ filter buttons ]
    [ big picture ]
    [ top bar ] (a) top bar (b) list of items (c) big picture
17. 17.🌗 Is white on black easy or hard to read on a button? (a) hard to read (b) easy to read
18. 18.Which of these is about UX (the experience)? (a) the icon shapes (b) the font size (c) the button colours (d) how many taps it takes
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 60 px tall
    Start button: 68 px tall
    Send button: 40 px tall (a) Done (b) Send (c) Start
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pens → Size → Address
    Design B: Home → Shop → Offers → Cart → Size
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Body text: 15 px
    Label: 21 px
    Menu: 24 px
22. 22.True or false: grey text on grey is poor button design. (a) True (b) False
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. open “Help page”
    3. tap Back
    4. tap the Quiz tab
    5. open “Help page”
    Which screen are you on now? (a) Help page (b) Video (c) Quiz (d) Lessons
24. 24.Which colour pair is easy to read? (a) light grey on white (b) dark blue on black (c) black on yellow (d) yellow on white
25. 25.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
26. 26.💾 What number does this code show?
    let score = 4;
    score = score - 3;
    score = score + 3;
    show(score);
27. 27.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
28. 28.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) pick an answer (b) read a question (c) see the final score (d) see if it is right
29. 29.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
30. 30.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
32. 32.🔍 Which is the odd one out? (a) the button colours (b) how many taps it takes (c) how easy sign-up is (d) how fast a task is done
33. 33.True or false: icons with no meaning is poor button design. (a) False (b) True
34. 34.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a 3D printer (c) a phone case (d) a microphone
35. 35.💾 What number does this code show?
    let points = 5;
    points = points - 3;
    points = points + 2;
    show(points);
36. 36.Which of these is true of a wireframe? (a) looks like the real app (b) is a quick sketch (c) shows the real fonts (d) has the real colours
37. 37.🔢 In a quiz-app flow, which comes LAST? (a) pick an answer (b) see if it is right (c) see the final score (d) read a question
38. 38.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
39. 39.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Edit photo”
    Which screen are you on now? (a) Edit photo (b) Search (c) Match report (d) Home

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students