App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 476 · 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.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
2. 2.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
3. 3.True or false: the screen layout is about UI (the look). (a) True (b) False
4. 4.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) shows the real fonts (d) is a quick sketch
5. 5.🔢 In a food-order flow, what comes right after “open the menu”? (a) track the order (b) check the cart (c) add it to the cart (d) pick a dish
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. tap the Settings tab
   3. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
7. 7.🔢 In a photo-post flow, which comes first: “open the camera screen” or “take the photo”? (a) take the photo (b) open the camera screen
8. 8.Which of these is true of a final design? (a) uses the final pictures (b) shows where things go (c) uses plain grey boxes (d) is a quick sketch
9. 9.Which of these is about UI (the look)? (a) how users feel after (b) how many taps it takes (c) the icon shapes (d) whether users get lost
10. 10.🔢 In a quiz-app flow, which comes LAST? (a) see the final score (b) see if it is right (c) pick an answer (d) read a question
11. 11.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
12. 12.Which of these is about UI (the look)? (a) how fast a task is done (b) how many taps it takes (c) the screen layout (d) whether users get lost
13. 13.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) home screen (c) tab bar (d) dead end
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Results → Item → Offers → Menu → Confirm
    Design B: Home → Menu → Cart (a) Design B (b) Design A
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pay → Search → Size
    Design B: Home → Pens → Item → Pay (a) Design A (b) Design B
16. 16.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) colour as the only clue
17. 17.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 52 px tall
    Send button: 44 px tall
    Cancel button: 48 px tall
    Next button: 64 px tall
18. 18.Which of these is true of the back button? (a) hides extra links (b) shows 3 to 5 icons (c) sits at the bottom (d) undoes one move
19. 19.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 64 px tall
    Next button: 52 px tall
    Done button: 56 px tall
20. 20.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 68 px tall
    Send button: 44 px tall
    Save button: 56 px tall
    Back button: 60 px tall (a) Send (b) Back (c) Help (d) Save
21. 21.True or false: how fast a task is done is about UI (the look). (a) False (b) True
22. 22.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) the same screen (c) a dead end (d) a random page
23. 23.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. tap the Settings tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
25. 25.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) fast-flashing lights
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.Which of these is about UX (the experience)? (a) the font size (b) the button colours (c) how easy sign-up is (d) the screen layout
28. 28.True or false: a wireframe shows the real fonts. (a) True (b) False
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Menu
    Design B: Home → Pens → Confirm → Menu → Search
30. 30.True or false: a wireframe has the real colours. (a) True (b) False
31. 31.💾 pop() takes off the last item. What does this code show?
    let songs = ["Stars", "Sunrise", "Rain"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Stars (b) Rain (c) Sunrise
32. 32.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) the path through screens (d) a charging cable
33. 33.💾 pop() takes off the last item. What does this code show?
    let friends = ["Riya", "Kabir", "Zoya", "Meera", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Kabir (b) Riya (c) Meera (d) Zoya
34. 34.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
36. 36.🔢 In a food-order flow, which comes first: “pick a dish” or “track the order”? (a) track the order (b) pick a dish
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 20 px tall. How many px taller must it be?
38. 38.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) an error (c) a picture goes here (d) a closed app
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Address → Offers → Cart
    Design B: Home → Pens → Size → Item → Search
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Body text: 15 px
    Footer: 23 px
    Caption: 18 px
    Hint: 17 px

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