App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 542 · 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.🔀 What is a user flow? (a) a type of font (b) the path through screens (c) a colour theme (d) a charging cable
2. 2.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
3. 3.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) read a question (b) see the final score (c) see if it is right (d) tap “Start quiz”
4. 4.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) add a filter (c) take the photo (d) post the photo
5. 5.🔢 In a food-order flow, what comes right after “check the cart”? (a) pay for the order (b) open the menu (c) pick a dish (d) track the order
6. 6.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
7. 7.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
8. 8.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
9. 9.💾 pop() takes off the last item. What does this code show?
   let notes = ["Hindi", "Music", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Science (b) Hindi (c) Music
10. 10.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
    [ Save button ]
    [ tab bar ]
    [ Add button ]
    [ search box ] (a) Add button (b) search box (c) Save button
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 14 px
    Caption: 10 px
    Menu: 15 px
    Title: 10 px
    Label: 13 px
12. 12.Which of these fits saving in the cloud? (a) a draft you are typing (b) the sound on/off setting (c) your last game level (d) photos on two devices
13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. tap the Me tab
    3. open “Video”
    4. tap Back
    5. tap the Quiz tab
    How many times must you tap Back to reach the main screen of this tab?
14. 14.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the phone settings (c) that tab’s main screen (d) the last app used
15. 15.Which of these is about UX (the experience)? (a) the icon shapes (b) how users feel after (c) the button colours (d) the font size
16. 16.🔢 In a food-order flow, which comes first: “check the cart” or “pick a dish”? (a) pick a dish (b) check the cart
17. 17.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ filter buttons ]
    [ top bar ]
    [ list of items ]
    [ search box ] (a) search box (b) list of items (c) filter buttons (d) top bar
18. 18.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ title text ]
    [ Save button ]
    [ menu icon ] (a) title text (b) Save button (c) menu icon (d) tab bar
19. 19.True or false: the icon shapes is about UX (the experience). (a) True (b) False
20. 20.Which of these helps everyone use the app? (a) colour as the only clue (b) sudden loud sounds (c) icons with no labels (d) big touch targets
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 56 px tall
    Done button: 68 px tall
    Next button: 28 px tall
    Cancel button: 68 px tall (a) Back (b) Done (c) Next (d) Cancel
22. 22.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) a clear next step (c) a random page (d) the same screen
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 24 px tall
    Help button: 60 px tall
    Send button: 48 px tall (a) Help (b) Send (c) Save
24. 24.True or false: grey text on grey is good button design. (a) False (b) True
25. 25.🖼️ How many parts (boxes) does this wireframe have?
    [ menu icon ]
    [ title text ]
    [ Save button ]
    [ filter buttons ]
26. 26.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) pick an answer (c) tap “Start quiz” (d) see the final score
27. 27.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
28. 28.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ top bar ]
    [ filter buttons ]
    [ tab bar ]
    [ search box ]
    [ Add button ] (a) tab bar (b) filter buttons (c) Add button (d) search box
29. 29.💾 What number does this code show?
    let stars = 8;
    stars = stars - 3;
    stars = stars + 1;
    show(stars);
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Hint: 18 px
    Title: 16 px (a) Title (b) Hint (c) Label
31. 31.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) no UI at all (c) perfect UX (d) good UX but poor UI
32. 32.💾 What does this code show? (Positions start at 0.)
    let friends = ["Meera", "Zoya", "Arjun"];
    show(friends[0]); (a) Zoya (b) Meera (c) Arjun
33. 33.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Menu → Address → Offers → Pens → Search
    Design B: Home → Menu → Results → Cart → Shop (a) Design B (b) Design A
34. 34.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
35. 35.💾 What number does this code show?
    let stars = 9;
    stars = stars - 4;
    stars = stars + 5;
    show(stars);
36. 36.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ list of items ]
    [ Save button ]
    [ filter buttons ]
37. 37.Which of these fits saving on the phone? (a) a shared to-do list (b) a class leaderboard (c) chat messages to friends (d) notes to read offline
38. 38.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) tap “Sign up” (b) type name and email (c) see the home screen (d) make a password
39. 39.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) the app is closed (c) you send a message (d) the screen turns off
40. 40.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe

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