App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 522 · 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.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) on the phone (b) in the cloud
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 23 px
   Footer: 23 px
   Menu: 10 px
   Hint: 17 px
   Title: 25 px (a) Body text (b) Menu (c) Footer (d) Hint
3. 3.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pay → Cart
   Design B: Home → Address → Pay → Offers → Confirm → Search (a) Design B (b) Design A
4. 4.True or false: a final design shows the real fonts. (a) True (b) False
5. 5.Which of these fits saving on the phone? (a) a shared to-do list (b) photos on two devices (c) a class leaderboard (d) a draft you are typing
6. 6.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) a dead end (c) a clear next step (d) the same screen
7. 7.Which of these is about UX (the experience)? (a) the icon shapes (b) whether users get lost (c) the screen layout (d) the theme colours
8. 8.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) is a quick sketch (d) uses the final pictures
9. 9.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
10. 10.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
11. 11.Which colour pair is hard to read? (a) black on pale grey (b) white on black (c) white on dark green (d) red on green
12. 12.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
13. 13.💾 pop() takes off the last item. What does this code show?
    let notes = ["Science", "Hindi", "Sports", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Hindi (b) Music (c) Sports (d) Science
14. 14.Which colour pair is hard to read? (a) black on pale grey (b) light grey on white (c) white on dark green (d) white on black
15. 15.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) post the photo (c) add a filter (d) take the photo
16. 16.🔢 In a sign-up flow, what comes right after “type name and email”? (a) open the app (b) see the home screen (c) make a password (d) enter the code sent
17. 17.True or false: a wireframe uses plain grey boxes. (a) True (b) False
18. 18.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
19. 19.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
20. 20.Which of these makes the app harder to use? (a) sudden loud sounds (b) big touch targets (c) labels on every icon (d) strong colour contrast
21. 21.True or false: a wireframe looks like the real app. (a) False (b) True
22. 22.Which of these fits saving in the cloud? (a) a shared to-do list (b) the sound on/off setting (c) a draft you are typing (d) your last game level
23. 23.Which of these makes the app harder to use? (a) labels on every icon (b) fast-flashing lights (c) captions on videos (d) text that can grow
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Footer: 18 px
    Caption: 11 px
25. 25.🔍 Which is the odd one out? (a) how fast a task is done (b) how many taps it takes (c) the theme colours (d) how easy sign-up is
26. 26.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ filter buttons ]
    [ Add button ]
    [ list of items ]
    [ menu icon ]
    [ Save button ]
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Badges”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.True or false: buttons almost touching is good button design. (a) True (b) False
29. 29.💾 pop() takes off the last item. What does this code show?
    let notes = ["Art", "Music", "Sports", "Hindi"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Hindi (b) Sports (c) Music (d) Art
30. 30.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
31. 31.True or false: the button colours is about UX (the experience). (a) True (b) False
32. 32.🔢 In a photo-post flow, what comes right after “take the photo”? (a) post the photo (b) add a filter (c) write a caption (d) open the camera screen
33. 33.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
34. 34.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) text that can grow (d) big touch targets
35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Video”
    3. tap the Quiz tab
    4. open “Match report”
    Which screen are you on now? (a) Lessons (b) Map (c) Video (d) Match report
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Offers → Item → Confirm
    Design B: Home → Cart → Confirm → Pens → Offers → Shop
37. 37.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Menu → Offers → Pens → Pay
    Design B: Home → Address → Confirm → Shop → Pens (a) Design B (b) Design A
39. 39.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
40. 40.Which of these is true of a menu button? (a) switches main sections (b) shows 3 to 5 icons (c) sits at the bottom (d) hides extra links

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