App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 749 · 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.True or false: icons with no meaning is good button design. (a) True (b) False
2. 2.🔢 In a food-order flow, which comes first: “check the cart” or “add it to the cart”? (a) check the cart (b) add it to the cart
3. 3.True or false: how easy sign-up is is about UI (the look). (a) False (b) True
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Confirm → Cart → Item → Search → Menu
   Design B: Home → Shop → Offers → Confirm → Pay → Pens
5. 5.🖼️ How many parts (boxes) does this wireframe have?
   [ list of items ]
   [ title text ]
   [ top bar ]
   [ big picture ]
6. 6.💾 pop() takes off the last item. What does this code show?
   let notes = ["Music", "Hindi", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Music (b) Science (c) Hindi
7. 7.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
   [ tab bar ]
   [ Add button ]
   [ top bar ]
   [ menu icon ] (a) top bar (b) Add button (c) tab bar
8. 8.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Send button: 64 px tall
   Back button: 32 px tall
   Save button: 56 px tall
   Start button: 56 px tall
9. 9.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
10. 10.True or false: a clear word like Save is good button design. (a) False (b) True
11. 11.💾 pop() takes off the last item. What does this code show?
    let notes = ["Maths", "Sports", "Science", "Art"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Science (b) Art (c) Maths (d) Sports
12. 12.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) the last app used (c) a random page (d) that tab’s main screen
13. 13.Which of these helps everyone use the app? (a) labels on every icon (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
14. 14.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
15. 15.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
16. 16.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
17. 17.True or false: how users feel after is about UI (the look). (a) False (b) True
18. 18.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) pick an answer (c) see if it is right (d) see the final score
19. 19.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) make a password (b) open the app
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Quiz tab
    3. open “Edit photo”
    4. tap Back
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
21. 21.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ menu icon ]
    [ list of items ]
    [ top bar ]
    [ big picture ]
    [ filter buttons ]
    [ search box ] (a) menu icon (b) filter buttons (c) big picture (d) search box
22. 22.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
23. 23.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) check the cart (c) pick a dish (d) track the order
24. 24.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
25. 25.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
26. 26.Which of these is true of a wireframe? (a) looks like the real app (b) uses the final pictures (c) shows where things go (d) has the real colours
27. 27.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Arjun", "Riya", "Kabir", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Arjun (b) Riya (c) Kabir (d) Meera
28. 28.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) read a question (b) tap “Start quiz”
29. 29.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. tap the Search tab
    4. open “Score card”
    Which screen are you on now? (a) Search (b) Score card (c) Match report (d) Home
30. 30.🎨 UI stands for user ___. (a) internet (b) idea (c) interface (d) input
31. 31.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Chat tab
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
32. 32.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
33. 33.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
34. 34.🔢 In a sign-up flow, which comes first: “enter the code sent” or “see the home screen”? (a) see the home screen (b) enter the code sent
35. 35.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) labels on every icon (d) text that can grow
36. 36.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) how easy sign-up is (d) the screen layout
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap the Settings tab
    3. open “Friend list”
    Which screen are you on now? (a) Friend list (b) Chat (c) Feed (d) Edit photo
38. 38.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
39. 39.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
40. 40.🌗 Is light grey on white easy or hard to read on a button? (a) hard to read (b) easy to read

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