App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 288 · 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.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) colour as the only clue (d) captions on videos
2. 2.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) colour as the only clue (d) labels on every icon
3. 3.🔍 Which is the odd one out? (a) the screen layout (b) the button colours (c) how many taps it takes (d) the icon shapes
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 13 px
   Label: 12 px
5. 5.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) post the photo (c) take the photo (d) add a filter
6. 6.💾 pop() takes off the last item. What does this code show?
   let songs = ["Monsoon", "Sunrise", "Stars"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Stars (b) Sunrise (c) Monsoon
7. 7.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
8. 8.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) shows the real fonts (d) uses plain grey boxes
9. 9.🖼️ How many parts (boxes) does this wireframe have?
   [ menu icon ]
   [ Add button ]
   [ big picture ]
   [ filter buttons ]
   [ top bar ]
10. 10.🔀 What is a user flow? (a) a type of font (b) the path through screens (c) a charging cable (d) a colour theme
11. 11.💾 What is a variable? (a) a phone setting (b) a picture (c) a named box for a value (d) a type of screen
12. 12.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ title text ]
    [ Add button ]
    [ top bar ]
    [ Save button ]
    [ search box ] (a) big picture (b) search box (c) Save button (d) title text
13. 13.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 60 px tall
    Cancel button: 72 px tall
    Done button: 32 px tall
    Help button: 68 px tall (a) Next (b) Cancel (c) Help (d) Done
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. open “Badges”
    3. tap the Profile tab
    4. tap the Home tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
17. 17.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
18. 18.True or false: a wireframe shows where things go. (a) True (b) False
19. 19.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a dead end (d) a clear next step
20. 20.True or false: your last game level fits saving on the phone. (a) True (b) False
21. 21.True or false: a final design shows the real fonts. (a) True (b) False
22. 22.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
23. 23.Which of these fits saving on the phone? (a) a class leaderboard (b) a shared to-do list (c) your last game level (d) photos on two devices
24. 24.Which of these is true of a final design? (a) shows where things go (b) is a quick sketch (c) has the real colours (d) uses plain grey boxes
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. tap Back
    4. open “Map”
    5. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
26. 26.🔢 In a sign-up flow, which comes LAST? (a) type name and email (b) see the home screen (c) enter the code sent (d) open the app
27. 27.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Cart → Offers
    Design B: Home → Item → Confirm → Address → Shop (a) Design B (b) Design A
28. 28.🎨 UX stands for user ___. (a) extra (b) example (c) experience (d) express
29. 29.Which of these is true of a wireframe? (a) has the real colours (b) has no real colours (c) looks like the real app (d) uses the final pictures
30. 30.🧭 Why should every screen show where you are? (a) to use more battery (b) to hide the menu (c) so users do not get lost (d) to look busy
31. 31.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ filter buttons ]
    [ Add button ]
    [ top bar ]
    [ big picture ]
    [ Save button ] (a) Save button (b) filter buttons (c) Add button (d) big picture
32. 32.True or false: a final design is a quick sketch. (a) True (b) False
33. 33.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see the final score (c) pick an answer (d) see if it is right
34. 34.💾 What does this code show? (Positions start at 0.)
    let notes = ["Sports", "Maths", "Hindi", "Music", "Science"];
    show(notes[1]); (a) Maths (b) Music (c) Sports (d) Hindi
35. 35.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
36. 36.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
37. 37.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ filter buttons ]
    [ top bar ]
    [ search box ]
    [ Save button ] (a) top bar (b) Save button (c) search box
38. 38.True or false: a wireframe uses plain grey boxes. (a) False (b) True
39. 39.✏️ Why draw a wireframe before coding? (a) it adds colours (b) changes are quick (c) it runs the app (d) it saves data
40. 40.💾 What does this code show? (Positions start at 0.)
    let songs = ["Stars", "Sunrise", "Rain"];
    show(songs[0]); (a) Sunrise (b) Rain (c) Stars

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