App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 608 · 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.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. open “Score card”
   3. tap the Quiz tab
   4. open “Map”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🔍 Which is the odd one out? (a) the icon shapes (b) the theme colours (c) the font size (d) how fast a task is done
3. 3.💾 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
4. 4.🔢 In a sign-up flow, which comes first: “open the app” or “type name and email”? (a) type name and email (b) open the app
5. 5.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
6. 6.💾 What number does this code show?
   let lives = 4;
   lives = lives - 3;
   lives = lives + 3;
   show(lives);
7. 7.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. open “Friend list”
   3. tap Back
   4. open “Badges”
   5. tap Back
   Which screen are you on now? (a) Feed (b) Badges (c) Chat (d) Friend list
9. 9.Which of these is true of the back button? (a) opens a list of pages (b) shows 3 to 5 icons (c) switches main sections (d) goes to the last screen
10. 10.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 3 to 5 (d) 10 to 12
11. 11.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 68 px tall
    Cancel button: 64 px tall
    Back button: 52 px tall
    Next button: 24 px tall (a) Help (b) Next (c) Back (d) Cancel
12. 12.✏️ What is a wireframe? (a) the finished app (b) a simple screen sketch (c) a charging cable (d) a type of password
13. 13.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
14. 14.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ Add button ]
    [ big picture ]
    [ list of items ]
    [ tab bar ]
    [ search box ]
    [ top bar ] (a) list of items (b) Add button (c) top bar (d) tab bar
15. 15.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ menu icon ]
    [ list of items ]
    [ Add button ]
    [ title text ]
    [ Save button ]
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Hint: 12 px
    Body text: 24 px
17. 17.🔢 In a food-order flow, which comes LAST? (a) open the menu (b) check the cart (c) track the order (d) pick a dish
18. 18.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) looks like the real app (d) is a quick sketch
19. 19.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) more colours (c) worse UX (d) a bigger app
20. 20.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
21. 21.💾 What number does this code show?
    let notes = ["Hindi", "Science", "Art", "Maths"];
    notes.push("Music");
    notes.push("Sports");
    show(notes.length);
22. 22.💾 Which works with no internet at all? (a) data saved on the phone (b) a cloud leaderboard (c) a shared chat (d) a cloud backup
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 40 px tall
    Help button: 68 px tall
    Cancel button: 48 px tall
    Send button: 72 px tall (a) Help (b) Send (c) Done (d) Cancel
24. 24.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) icons with no labels (d) captions on videos
25. 25.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Size → Confirm
    Design B: Home → Pens → Search → Results → Address → Shop → Offers (a) Design B (b) Design A
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Search tab
    3. tap the Profile tab
    Which screen are you on now? (a) Profile (b) Search (c) Home
27. 27.Which of these is about UI (the look)? (a) how many taps it takes (b) the screen layout (c) how fast a task is done (d) how users feel after
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Match report”
    3. tap Back
    4. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🔍 Which is the odd one out? (a) how many taps it takes (b) the screen layout (c) the icon shapes (d) the font size
30. 30.True or false: photos on two devices fits saving in the cloud. (a) False (b) True
31. 31.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
33. 33.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
34. 34.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) a picture goes here (c) delete this (d) an error
35. 35.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) you send a message (c) the app is closed (d) the phone is lost
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 21 px
    Hint: 21 px
    Body text: 13 px
    Footer: 28 px (a) Title (b) Hint (c) Body text (d) Footer
37. 37.💾 Which can hold many values in order? (a) a list (b) a switch (c) a single number (d) a button
38. 38.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.Which colour pair is easy to read? (a) yellow on white (b) white on black (c) light grey on white (d) dark blue on black
40. 40.Which of these fits saving on the phone? (a) photos on two devices (b) a shared to-do list (c) a class leaderboard (d) the sound on/off setting

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