App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 629 · 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. How many texts on this screen are too small?
   Menu: 15 px
   Footer: 10 px
   Hint: 15 px
   Label: 18 px
   Title: 10 px
2. 2.💾 What does this code show? (Positions start at 0.)
   let friends = ["Riya", "Aman", "Zoya"];
   show(friends[0]); (a) Zoya (b) Aman (c) Riya
3. 3.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
4. 4.True or false: the icon shapes is about UX (the experience). (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) captions on videos (d) strong colour contrast
6. 6.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
7. 7.🌗 Is white on black easy or hard to read on a button? (a) easy to read (b) hard to read
8. 8.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) fast-flashing lights
10. 10.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Address → Offers
    Design B: Home → Pens → Offers (a) Design A (b) Design B
11. 11.Which of these is about UX (the experience)? (a) the font size (b) the screen layout (c) the icon shapes (d) how many taps it takes
12. 12.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
13. 13.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
14. 14.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a random page (c) a clear next step (d) a dead end
15. 15.Which of these makes the app harder to use? (a) strong colour contrast (b) icons with no labels (c) big touch targets (d) labels on every icon
16. 16.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a shared chat (c) a cloud backup (d) data saved on the phone
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Body text: 27 px
    Menu: 9 px (a) Title (b) Body text (c) Menu
18. 18.Which of these is true of a wireframe? (a) shows the real fonts (b) looks like the real app (c) is a quick sketch (d) uses the final pictures
19. 19.Which of these is true of the back button? (a) opens a list of pages (b) undoes one move (c) switches main sections (d) hides extra links
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. open “Map”
    Which screen are you on now? (a) Home (b) Search (c) Map (d) Match report
21. 21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Shop → Pens → Address
    Design B: Home → Search → Menu (a) Design B (b) Design A
22. 22.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 32 px tall
    Done button: 60 px tall
    Cancel button: 32 px tall
23. 23.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ list of items ]
    [ tab bar ]
    [ big picture ]
    [ Add button ] (a) menu icon (b) tab bar (c) Add button (d) list of items
24. 24.💾 What number does this code show?
    let songs = ["Sunrise", "Rain", "Monsoon", "Stars"];
    songs.push("Ocean");
    show(songs.length);
25. 25.💾 What number does this code show?
    let coins = 8;
    coins = coins - 7;
    coins = coins + 4;
    show(coins);
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Search tab
    Which screen are you on now? (a) Home (b) Help page (c) Profile (d) Search
27. 27.Which of these is true of a final design? (a) is a quick sketch (b) shows where things go (c) shows the real fonts (d) uses plain grey boxes
28. 28.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
29. 29.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) write a caption (c) open the camera screen (d) post the photo
30. 30.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) in the middle (d) inside a button
31. 31.True or false: a final design uses the final pictures. (a) False (b) True
32. 32.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
33. 33.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
34. 34.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a final design (b) a wireframe
35. 35.True or false: notes to read offline fits saving on the phone. (a) False (b) True
36. 36.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
37. 37.🔢 In a sign-up flow, which comes FIRST? (a) see the home screen (b) enter the code sent (c) open the app (d) type name and email
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pens
    Design B: Home → Shop → Search → Results (a) Design B (b) Design A
39. 39.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ title text ]
    [ top bar ]
    [ search box ]
    [ list of items ] (a) title text (b) Save button (c) list of items (d) top bar
40. 40.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 32 px tall
    Cancel button: 52 px tall
    Send button: 36 px tall

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