App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 443 · 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Menu: 10 px
   Footer: 13 px
   Body text: 19 px
   Label: 21 px
2. 2.Which of these is true of a final design? (a) has no real colours (b) shows where things go (c) has the real colours (d) is a quick sketch
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 14 px
   Menu: 16 px
   Hint: 19 px
   Label: 22 px
   Caption: 26 px (a) Label (b) Menu (c) Footer (d) Hint
4. 4.Which of these is true of a final design? (a) uses plain grey boxes (b) has no real colours (c) shows the real fonts (d) is a quick sketch
5. 5.🔢 In a food-order flow, what comes right after “open the menu”? (a) pick a dish (b) add it to the cart (c) track the order (d) check the cart
6. 6.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
7. 7.Which of these is true of a tab bar? (a) goes to the last screen (b) undoes one move (c) shows 3 to 5 icons (d) opens a list of pages
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. tap Back
   3. open “Map”
   4. open “Video”
   Which screen are you on now? (a) Video (b) Chat (c) Feed (d) Map
9. 9.💾 What does this code show? (Positions start at 0.)
   let notes = ["Music", "Maths", "Art", "Hindi", "Sports"];
   show(notes[0]); (a) Maths (b) Art (c) Music (d) Hindi
10. 10.💾 pop() takes off the last item. What does this code show?
    let songs = ["Rain", "Monsoon", "Kites", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Ocean (b) Kites (c) Rain (d) Monsoon
11. 11.🔢 In a food-order flow, what comes right after “pay for the order”? (a) check the cart (b) open the menu (c) track the order (d) add it to the cart
12. 12.💾 Which can hold many values in order? (a) a button (b) a switch (c) a single number (d) a list
13. 13.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
14. 14.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.Which of these fits saving on the phone? (a) notes to read offline (b) a class leaderboard (c) chat messages to friends (d) a shared to-do list
16. 16.Which of these is true of a menu button? (a) opens a list of pages (b) goes to the last screen (c) undoes one move (d) shows 3 to 5 icons
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap Back
    3. open “Map”
    Which screen are you on now? (a) Badges (b) Search (c) Home (d) Map
18. 18.💾 What is a variable? (a) a picture (b) a type of screen (c) a named box for a value (d) a phone setting
19. 19.Which of these is true of a menu button? (a) hides extra links (b) shows 3 to 5 icons (c) switches main sections (d) goes to the last screen
20. 20.🖼️ In this wireframe (top to bottom), what is right above the top bar?
    [ Add button ]
    [ search box ]
    [ tab bar ]
    [ title text ]
    [ list of items ]
    [ top bar ] (a) tab bar (b) title text (c) list of items (d) Add button
21. 21.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ top bar ]
    [ menu icon ]
    [ list of items ]
22. 22.🔢 In a sign-up flow, what comes right after “type name and email”? (a) enter the code sent (b) make a password (c) tap “Sign up” (d) open the app
23. 23.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) see the final score (b) read a question
24. 24.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) strong colour contrast
25. 25.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) tap “Start quiz” (b) read a question
26. 26.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Map”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
28. 28.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
29. 29.Which colour pair is easy to read? (a) dark blue on black (b) red on green (c) pale pink on white (d) black on pale grey
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap Back
    3. open “Video”
    4. tap Back
    Which screen are you on now? (a) Chat (b) Feed (c) Video (d) Match report
31. 31.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
32. 32.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
33. 33.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see the final score (b) see if it is right (c) read a question (d) pick an answer
34. 34.True or false: a wireframe looks like the real app. (a) False (b) True
35. 35.Which of these is about UI (the look)? (a) how easy sign-up is (b) whether users get lost (c) the font size (d) how many taps it takes
36. 36.🔍 Which is the odd one out? (a) how many taps it takes (b) how easy sign-up is (c) whether users get lost (d) the icon shapes
37. 37.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ Save button ]
    [ search box ]
    [ big picture ]
    [ Add button ]
    [ title text ]
    [ tab bar ] (a) big picture (b) Add button (c) tab bar (d) Save button
38. 38.🎨 Who should you test the UX with? (a) real users (b) the app icon (c) only yourself (d) nobody
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 52 px tall
    Done button: 32 px tall
    Cancel button: 72 px tall
    Start button: 72 px tall (a) Start (b) Back (c) Cancel (d) Done
40. 40.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe

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