App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 697 · 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 is about UX (the experience)? (a) the theme colours (b) the font size (c) the icon shapes (d) how easy sign-up is
2. 2.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
3. 3.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) undoes one move (d) shows 3 to 5 icons
4. 4.💾 What number does this code show?
   let lives = 4;
   lives = lives - 1;
   lives = lives + 5;
   show(lives);
5. 5.🔢 In a food-order flow, which comes LAST? (a) track the order (b) pick a dish (c) pay for the order (d) open the menu
6. 6.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
7. 7.🔢 In a photo-post flow, which comes LAST? (a) open the camera screen (b) take the photo (c) post the photo (d) add a filter
8. 8.Which of these is about UI (the look)? (a) how users feel after (b) how easy sign-up is (c) how many taps it takes (d) the button colours
9. 9.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ tab bar ]
   [ search box ]
   [ Add button ]
   [ top bar ]
   [ menu icon ] (a) top bar (b) search box (c) menu icon (d) Add button
10. 10.True or false: a wireframe has no real colours. (a) False (b) True
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 40 px tall
    Save button: 48 px tall
    Next button: 64 px tall (a) Next (b) Send (c) Save
12. 12.🔍 Which is the odd one out? (a) how users feel after (b) how fast a task is done (c) how easy sign-up is (d) the button colours
13. 13.Which of these is true of the back button? (a) hides extra links (b) opens a list of pages (c) undoes one move (d) shows 3 to 5 icons
14. 14.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
15. 15.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
16. 16.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a 3D printer (c) a phone case (d) pencil and paper
17. 17.True or false: photos on two devices fits saving on the phone. (a) False (b) True
18. 18.🧭 Why should every screen show where you are? (a) to hide the menu (b) to look busy (c) so users do not get lost (d) to use more battery
19. 19.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) pay for the order (c) open the menu (d) check the cart
20. 20.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
21. 21.True or false: how easy sign-up is is about UI (the look). (a) False (b) True
22. 22.Which of these is about UI (the look)? (a) the theme colours (b) how many taps it takes (c) how users feel after (d) how easy sign-up is
23. 23.True or false: how easy sign-up is is about UX (the experience). (a) False (b) True
24. 24.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ tab bar ]
    [ menu icon ]
    [ Save button ]
    [ search box ]
    [ filter buttons ] (a) menu icon (b) search box (c) Save button (d) filter buttons
25. 25.Which of these fits saving in the cloud? (a) notes to read offline (b) a class leaderboard (c) the sound on/off setting (d) a draft you are typing
26. 26.💾 What number does this code show?
    let friends = ["Zoya", "Aman", "Riya", "Arjun"];
    friends.push("Meera");
    friends.push("Kabir");
    show(friends.length);
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. open “Edit photo”
    3. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
28. 28.Which of these is about UX (the experience)? (a) the icon shapes (b) how users feel after (c) the theme colours (d) the button colours
29. 29.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Label: 12 px
    Footer: 22 px
    Menu: 28 px
    Body text: 23 px (a) Footer (b) Menu (c) Title (d) Label
31. 31.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
32. 32.True or false: grey text on grey is poor button design. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Title: 23 px
    Caption: 20 px
    Footer: 25 px (a) Caption (b) Title (c) Body text (d) Footer
34. 34.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap Back
    3. open “Friend list”
    4. tap Back
    5. open “Video”
    Which screen are you on now? (a) Friend list (b) Home (c) Score card (d) Video
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. tap the Profile tab
    Which screen are you on now? (a) Search (b) Match report (c) Profile (d) Home
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Back button is 40 px tall. How many px taller must it be?
38. 38.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) pick an answer (b) read a question (c) tap “Start quiz” (d) see the final score
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Map”
    3. tap Back
    4. tap the Chat tab
    5. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
40. 40.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design

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