App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 226 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 16 px
   Hint: 16 px
   Caption: 10 px
   Label: 25 px (a) Caption (b) Hint (c) Menu (d) Label
2. 2.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
3. 3.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) you send a message (c) the app is closed (d) the phone is lost
4. 4.True or false: a clear word like Save is good button design. (a) False (b) True
5. 5.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
6. 6.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
7. 7.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
8. 8.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
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.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) open the app (c) make a password (d) enter the code sent
11. 11.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UX but poor UI (c) good UI but poor UX (d) no UI at all
12. 12.Which of these is about UX (the experience)? (a) the theme colours (b) the button colours (c) the font size (d) how easy sign-up is
13. 13.Which of these is about UI (the look)? (a) how users feel after (b) the theme colours (c) how many taps it takes (d) how easy sign-up is
14. 14.✏️ What is a wireframe? (a) a type of password (b) a simple screen sketch (c) a charging cable (d) the finished app
15. 15.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
16. 16.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
17. 17.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
18. 18.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) tiny tap areas
19. 19.Which of these is true of a menu button? (a) sits at the bottom (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Caption: 10 px
    Footer: 18 px
    Menu: 21 px
21. 21.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) everyone (d) nobody
22. 22.🖼️ How many parts (boxes) does this wireframe have?
    [ list of items ]
    [ tab bar ]
    [ top bar ]
    [ Save button ]
    [ menu icon ]
    [ search box ]
23. 23.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
24. 24.🔢 In a food-order flow, which comes first: “check the cart” or “pay for the order”? (a) pay for the order (b) check the cart
25. 25.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) shows the real fonts (d) uses plain grey boxes
26. 26.True or false: the font size is about UX (the experience). (a) False (b) True
27. 27.💾 What number does this code show?
    let stars = 9;
    stars = stars - 1;
    stars = stars + 4;
    show(stars);
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
29. 29.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Badges”
    2. tap the Lessons tab
    3. open “Edit photo”
    Which screen are you on now? (a) Badges (b) Edit photo (c) Lessons (d) Quiz
30. 30.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 48 px tall
    Help button: 56 px tall
    Start button: 64 px tall
    Cancel button: 40 px tall
31. 31.True or false: a wireframe is a quick sketch. (a) False (b) True
32. 32.True or false: a final design uses plain grey boxes. (a) False (b) True
33. 33.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ Add button ]
    [ list of items ]
    [ filter buttons ]
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Footer: 23 px
    Body text: 11 px
    Label: 20 px
    Caption: 16 px (a) Hint (b) Footer (c) Label (d) Body text
35. 35.🔢 In a food-order flow, what comes right after “pick a dish”? (a) open the menu (b) pay for the order (c) add it to the cart (d) check the cart
36. 36.Which of these is about UX (the experience)? (a) whether users get lost (b) the button colours (c) the font size (d) the screen layout
37. 37.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Map”
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Address → Menu → Offers → Item → Pay
    Design B: Home → Pay → Menu → Cart → Shop → Results
40. 40.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) worse UX (c) a bigger app (d) more colours

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