App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 863 · 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.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 10 px
   Footer: 14 px
   Menu: 19 px
   Label: 22 px
3. 3.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
4. 4.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) a colour theme (d) the path through screens
5. 5.🖼️ In this wireframe (top to bottom), what is right above the title text?
   [ list of items ]
   [ menu icon ]
   [ Add button ]
   [ title text ] (a) Add button (b) list of items (c) menu icon
6. 6.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) tiny tap areas (d) text that can grow
7. 7.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Address → Pens → Search → Shop → Offers → Confirm
   Design B: Home → Size → Item → Menu → Confirm
8. 8.Which of these is true of a final design? (a) shows where things go (b) is a quick sketch (c) uses plain grey boxes (d) has the real colours
9. 9.💾 pop() takes off the last item. What does this code show?
   let notes = ["Maths", "Hindi", "Science"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Science (b) Maths (c) Hindi
10. 10.💾 pop() takes off the last item. What does this code show?
    let notes = ["Art", "Hindi", "Science", "Maths"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Art (b) Hindi (c) Maths (d) Science
11. 11.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) pay for the order (b) track the order
12. 12.🔍 Which is the odd one out? (a) whether users get lost (b) how users feel after (c) the button colours (d) how fast a task is done
13. 13.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
14. 14.Which colour pair is easy to read? (a) yellow on white (b) light grey on white (c) black on yellow (d) dark blue on black
15. 15.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) tap “Start quiz” (b) read a question
16. 16.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. tap the Me tab
    3. open “Edit photo”
    4. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
17. 17.🔘 Our rule: buttons are at least 48 px tall. The Done button is 44 px tall. How many px taller must it be?
18. 18.Which of these is true of a menu button? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) sits at the bottom
19. 19.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) sudden loud sounds
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Confirm → Search → Results → Offers
    Design B: Home → Offers → Shop → Menu → Item → Size → Address
21. 21.🔢 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
22. 22.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ tab bar ]
    [ filter buttons ]
    [ top bar ]
    [ list of items ]
    [ menu icon ]
    [ search box ] (a) list of items (b) search box (c) top bar (d) menu icon
23. 23.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Label: 17 px
    Hint: 22 px
    Body text: 21 px
    Caption: 17 px (a) Title (b) Hint (c) Label (d) Body text
25. 25.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) big touch targets
26. 26.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) see the final score (b) read a question (c) pick an answer (d) tap “Start quiz”
27. 27.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
28. 28.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) the icon shapes (d) how fast a task is done
29. 29.🔢 In a food-order flow, what comes right after “pick a dish”? (a) add it to the cart (b) open the menu (c) track the order (d) pay for the order
30. 30.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Art", "Sports", "Hindi", "Science"];
    show(notes[0]); (a) Art (b) Maths (c) Sports (d) Hindi
31. 31.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
32. 32.True or false: your last game level fits saving on the phone. (a) False (b) True
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Save button is 24 px tall. How many px taller must it be?
34. 34.✏️ Why draw a wireframe before coding? (a) it saves data (b) it adds colours (c) changes are quick (d) it runs the app
35. 35.💾 What number does this code show?
    let notes = ["Science", "Hindi", "Sports"];
    notes.push("Maths");
    show(notes.length);
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. open “Video”
    4. tap Back
    Which screen are you on now? (a) Search (b) Home (c) Video (d) Match report
37. 37.💾 Which works with no internet at all? (a) data saved on the phone (b) a cloud leaderboard (c) a cloud backup (d) a shared chat
38. 38.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) open the app (b) make a password
39. 39.🔢 In a sign-up flow, which comes first: “open the app” or “tap “Sign up””? (a) tap “Sign up” (b) open the app
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Results → Menu → Search
    Design B: Home → Search → Confirm → Pay → Cart → Address

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