App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 192 · 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.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ filter buttons ]
   [ title text ]
   [ Save button ]
   [ tab bar ] (a) filter buttons (b) Save button (c) title text (d) tab bar
2. 2.🔍 Which is the odd one out? (a) the theme colours (b) the screen layout (c) how many taps it takes (d) the button colours
3. 3.🧭 Tapping a tab usually takes you to ___. (a) that tab’s main screen (b) a random page (c) the last app used (d) the phone settings
4. 4.💾 What does this code show? (Positions start at 0.)
   let friends = ["Aman", "Arjun", "Kabir"];
   show(friends[2]); (a) Arjun (b) Aman (c) Kabir
5. 5.True or false: a final design shows the real fonts. (a) True (b) False
6. 6.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) a bigger app (c) better UX (d) worse UX
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Quiz tab
   2. open “Badges”
   3. tap the Lessons tab
   4. open “Match report”
   How many times must you tap Back to reach the main screen of this tab?
8. 8.True or false: a clear word like Save is good button design. (a) False (b) True
9. 9.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
10. 10.🔘 Our rule: buttons are at least 48 px tall. The Start button is 32 px tall. How many px taller must it be?
11. 11.🔢 In a food-order flow, what comes right after “check the cart”? (a) pay for the order (b) add it to the cart (c) open the menu (d) track the order
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Results
    Design B: Home → Size → Item → Pens → Results
13. 13.🔍 Which is the odd one out? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
14. 14.True or false: space between buttons is poor button design. (a) False (b) True
15. 15.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Address
    Design B: Home → Pay → Search → Size → Pens → Results (a) Design B (b) Design A
16. 16.True or false: grey text on grey is poor button design. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. open “Edit photo”
    3. open “Match report”
    4. open “Video”
    Which screen are you on now? (a) Edit photo (b) Video (c) Match report (d) Home
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Menu → Results → Search
    Design B: Home → Pay → Pens
21. 21.Which of these is true of a tab bar? (a) undoes one move (b) opens a list of pages (c) switches main sections (d) hides extra links
22. 22.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Riya", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Meera (c) Riya
23. 23.Which of these fits saving in the cloud? (a) chat messages to friends (b) a draft you are typing (c) notes to read offline (d) your last game level
24. 24.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a shared chat (c) data saved on the phone (d) a cloud backup
25. 25.True or false: how users feel after is about UX (the experience). (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Caption: 14 px
    Label: 22 px (a) Caption (b) Title (c) Label
27. 27.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) open the camera screen (c) write a caption (d) post the photo
28. 28.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
29. 29.🖼️ How many parts (boxes) does this wireframe have?
    [ menu icon ]
    [ top bar ]
    [ big picture ]
    [ search box ]
    [ tab bar ]
30. 30.🔢 In a sign-up flow, what comes right after “type name and email”? (a) tap “Sign up” (b) see the home screen (c) make a password (d) enter the code sent
31. 31.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
32. 32.🔢 In a food-order flow, which comes first: “open the menu” or “pay for the order”? (a) pay for the order (b) open the menu
33. 33.🔍 Which is the odd one out? (a) the screen layout (b) how easy sign-up is (c) how many taps it takes (d) how fast a task is done
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
35. 35.🔢 In a sign-up flow, which comes first: “type name and email” or “open the app”? (a) type name and email (b) open the app
36. 36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 48 px tall
    Save button: 40 px tall
    Start button: 36 px tall
37. 37.True or false: a wireframe uses the final pictures. (a) True (b) False
38. 38.💾 Which can hold many values in order? (a) a switch (b) a button (c) a list (d) a single number
39. 39.🎨 Is this about UI or UX: how easy sign-up is? (a) UX (b) UI
40. 40.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Match report”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?

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