App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 55 · 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 of these fits saving in the cloud? (a) a class leaderboard (b) the sound on/off setting (c) a draft you are typing (d) notes to read offline
2. 2.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Search → Offers → Pay
   Design B: Home → Results → Offers → Pens → Search → Menu → Item (a) Design B (b) Design A
3. 3.🔢 In a food-order flow, what comes right after “open the menu”? (a) check the cart (b) track the order (c) pick a dish (d) add it to the cart
4. 4.🔢 In a sign-up flow, what comes right after “type name and email”? (a) open the app (b) see the home screen (c) enter the code sent (d) make a password
5. 5.True or false: a final design looks like the real app. (a) False (b) True
6. 6.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
7. 7.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) uses the final pictures (d) has no real colours
8. 8.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 16 px
   Hint: 14 px
   Title: 14 px
   Body text: 18 px
10. 10.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ list of items ]
    [ search box ]
    [ menu icon ]
    [ top bar ] (a) top bar (b) search box (c) list of items (d) big picture
11. 11.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) labels on every icon (d) tiny tap areas
12. 12.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Back button is 20 px tall. How many px taller must it be?
14. 14.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Match report”
    4. tap Back
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Video”
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
16. 16.True or false: a final design uses the final pictures. (a) True (b) False
17. 17.True or false: a final design uses plain grey boxes. (a) True (b) False
18. 18.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see the final score”? (a) see the final score (b) tap “Start quiz”
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 24 px tall
    Done button: 56 px tall
    Cancel button: 56 px tall
    Next button: 56 px tall (a) Cancel (b) Send (c) Done (d) Next
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Size → Address → Pens → Menu → Cart → Search
    Design B: Home → Cart → Shop → Search → Results → Pens
21. 21.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
22. 22.True or false: icons with no meaning is poor button design. (a) True (b) False
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
24. 24.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
25. 25.True or false: a wireframe shows where things go. (a) False (b) True
26. 26.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) check the cart (b) pay for the order
27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 52 px tall
    Next button: 52 px tall
    Start button: 44 px tall
    Done button: 56 px tall (a) Start (b) Cancel (c) Done (d) Next
28. 28.💾 What number does this code show?
    let lives = 4;
    lives = lives - 2;
    lives = lives + 4;
    show(lives);
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
30. 30.True or false: a clear word like Save is good button design. (a) True (b) False
31. 31.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) delete this (c) a closed app (d) an error
32. 32.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
33. 33.🔢 In a sign-up flow, which comes first: “open the app” or “enter the code sent”? (a) enter the code sent (b) open the app
34. 34.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 52 px tall
    Cancel button: 56 px tall
    Start button: 52 px tall
    Next button: 40 px tall
35. 35.🔢 In a quiz-app flow, which comes first: “read a question” or “tap “Start quiz””? (a) tap “Start quiz” (b) read a question
36. 36.Which of these is true of a tab bar? (a) hides extra links (b) opens a list of pages (c) undoes one move (d) switches main sections
37. 37.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
38. 38.💾 What does this code show? (Positions start at 0.)
    let songs = ["Rain", "Kites", "Monsoon", "Stars"];
    show(songs[2]); (a) Kites (b) Rain (c) Monsoon (d) Stars
39. 39.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see if it is right”? (a) see if it is right (b) tap “Start quiz”
40. 40.🧭 Which part of navigation shows 3 to 5 icons? (a) a tab bar (b) the back button (c) a menu button

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