App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 251 · 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.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) pick a dish (c) track the order (d) open the menu
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Map”
   3. open “Video”
   4. tap Back
   How many times must you tap Back to reach the main screen of this tab?
3. 3.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) photos on two devices (d) notes to read offline
4. 4.✏️ What is the easiest way to draw a first wireframe? (a) a 3D printer (b) a microphone (c) pencil and paper (d) a phone case
5. 5.🔍 Which is the odd one out? (a) the button colours (b) how users feel after (c) the icon shapes (d) the font size
6. 6.Which colour pair is hard to read? (a) black on yellow (b) red on green (c) dark blue on white (d) white on dark green
7. 7.🖼️ How many parts (boxes) does this wireframe have?
   [ search box ]
   [ title text ]
   [ top bar ]
   [ Save button ]
8. 8.True or false: the theme colours is about UX (the experience). (a) True (b) False
9. 9.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
10. 10.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
11. 11.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
12. 12.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) text that can grow (d) strong colour contrast
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Hint: 13 px
    Footer: 18 px
    Menu: 24 px
15. 15.🔢 In a quiz-app flow, which comes LAST? (a) see if it is right (b) read a question (c) pick an answer (d) see the final score
16. 16.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
17. 17.Which colour pair is easy to read? (a) dark blue on white (b) yellow on white (c) dark blue on black (d) pale pink on white
18. 18.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Sunrise", "Rain", "Monsoon", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Kites (c) Rain (d) Monsoon
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Footer: 11 px
    Body text: 22 px
20. 20.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pens → Item → Offers → Pay → Size
    Design B: Home → Search → Menu (a) Design A (b) Design B
21. 21.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Edit photo”
    3. tap the Search tab
    4. tap the Profile tab
    Which screen are you on now? (a) Edit photo (b) Score card (c) Home (d) Profile
22. 22.True or false: the icon shapes is about UX (the experience). (a) False (b) True
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pay → Confirm → Menu → Address → Pens → Size
    Design B: Home → Shop → Search → Item
24. 24.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ filter buttons ]
    [ search box ]
    [ big picture ]
    [ top bar ] (a) menu icon (b) filter buttons (c) big picture (d) top bar
25. 25.Which of these is true of the back button? (a) hides extra links (b) opens a list of pages (c) goes to the last screen (d) switches main sections
26. 26.Which of these is true of a wireframe? (a) has the real colours (b) looks like the real app (c) has no real colours (d) shows the real fonts
27. 27.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) a draft you are typing (d) a shared to-do list
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Pay
    Design B: Home → Pens → Confirm → Size → Search (a) Design A (b) Design B
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Menu → Search
    Design B: Home → Pay → Shop → Pens
30. 30.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 32 px tall
    Send button: 64 px tall
    Start button: 60 px tall
    Help button: 48 px tall (a) Help (b) Done (c) Send (d) Start
31. 31.🔀 Why plan the user flow before building? (a) to skip testing (b) so each step is clear (c) to add more taps (d) to hide the buttons
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 40 px tall
    Help button: 60 px tall
    Cancel button: 52 px tall (a) Help (b) Cancel (c) Next
33. 33.✏️ Why draw a wireframe before coding? (a) it saves data (b) it runs the app (c) changes are quick (d) it adds colours
34. 34.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) looks like the real app (d) shows where things go
35. 35.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) open the menu (b) track the order
36. 36.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
37. 37.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.True or false: a wireframe shows where things go. (a) False (b) True
39. 39.🔢 In a photo-post flow, which comes FIRST? (a) open the camera screen (b) take the photo (c) add a filter (d) post the photo
40. 40.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) so users do not get lost (d) to hide the menu

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