App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 252 · 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: buttons are at least 48 px tall. Which button is too small?
   Back button: 60 px tall
   Help button: 72 px tall
   Cancel button: 48 px tall
   Next button: 24 px tall (a) Help (b) Cancel (c) Next (d) Back
2. 2.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a shared to-do list (c) notes to read offline (d) your last game level
3. 3.🖼️ How many parts (boxes) does this wireframe have?
   [ big picture ]
   [ filter buttons ]
   [ search box ]
   [ top bar ]
4. 4.True or false: a final design has no real colours. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 19 px
   Footer: 23 px
   Menu: 9 px (a) Menu (b) Title (c) Footer
6. 6.Which colour pair is hard to read? (a) black on yellow (b) black on pale grey (c) light grey on white (d) white on black
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Save button is 44 px tall. How many px taller must it be?
8. 8.🔍 Which is the odd one out? (a) the screen layout (b) how easy sign-up is (c) how users feel after (d) how fast a task is done
9. 9.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a microphone (c) a phone case (d) a 3D printer
10. 10.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) tap “Sign up” (c) see the home screen (d) open the app
11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Badges”
    3. tap the Search tab
    4. tap the Profile tab
    Which screen are you on now? (a) Home (b) Video (c) Badges (d) Profile
12. 12.🔢 In a food-order flow, what comes right after “open the menu”? (a) pick a dish (b) track the order (c) add it to the cart (d) pay for the order
13. 13.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 2 (c) 0 (d) 10
14. 14.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 72 px tall
    Back button: 28 px tall
    Done button: 56 px tall
    Start button: 64 px tall (a) Back (b) Start (c) Done (d) Cancel
15. 15.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Search → Address → Size → Offers
    Design B: Home → Address → Results
17. 17.True or false: buttons almost touching is good button design. (a) False (b) True
18. 18.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
19. 19.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 36 px tall
    Start button: 60 px tall
    Next button: 32 px tall
20. 20.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ menu icon ]
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ list of items ]
    [ big picture ] (a) menu icon (b) Save button (c) search box (d) list of items
21. 21.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
22. 22.💾 What number does this code show?
    let notes = ["Maths", "Art"];
    notes.push("Music");
    notes.push("Sports");
    show(notes.length);
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Size → Address
    Design B: Home → Pay → Size → Search → Pens → Results
24. 24.Which of these is about UX (the experience)? (a) the button colours (b) whether users get lost (c) the screen layout (d) the theme colours
25. 25.🔢 In a quiz-app flow, which comes first: “pick an answer” or “tap “Start quiz””? (a) pick an answer (b) tap “Start quiz”
26. 26.Which of these is true of a final design? (a) has no real colours (b) shows the real fonts (c) uses plain grey boxes (d) is a quick sketch
27. 27.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
28. 28.True or false: your last game level fits saving on the phone. (a) True (b) False
29. 29.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 60 px tall
    Save button: 36 px tall
    Back button: 52 px tall
    Start button: 56 px tall (a) Back (b) Save (c) Start (d) Done
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Feed tab
    3. open “Map”
    4. tap the Settings tab
    Which screen are you on now? (a) Feed (b) Map (c) Score card (d) Settings
31. 31.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
32. 32.True or false: a wireframe shows where things go. (a) False (b) True
33. 33.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
34. 34.Which of these is true of a wireframe? (a) has the real colours (b) is a quick sketch (c) shows the real fonts (d) looks like the real app
35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap the Me tab
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. tap Back
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
37. 37.🧭 Which part of navigation undoes one move? (a) a menu button (b) a tab bar (c) the back button
38. 38.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) real users (d) nobody
39. 39.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Search → Item
    Design B: Home → Pens → Shop

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