App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 57 · 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.Which of these is true of a wireframe? (a) is a quick sketch (b) uses the final pictures (c) shows the real fonts (d) looks like the real app
2. 2.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) shows the real fonts (d) has no real colours
3. 3.✏️ Why draw a wireframe before coding? (a) it saves data (b) changes are quick (c) it runs the app (d) it adds colours
4. 4.True or false: the theme colours is about UX (the experience). (a) False (b) True
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Score card”
   2. tap the Quiz tab
   3. tap the Quiz tab
   Which screen are you on now? (a) Quiz (b) Me (c) Score card (d) Lessons
6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Match report”
   2. tap the Quiz tab
   3. open “Edit photo”
   Which screen are you on now? (a) Quiz (b) Edit photo (c) Match report (d) Lessons
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Lessons tab
   2. open “Map”
   3. open “Score card”
   4. open “Score card”
   5. tap Back
   Which screen are you on now? (a) Map (b) Lessons (c) Score card (d) Quiz
8. 8.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
9. 9.True or false: icons with no meaning is poor button design. (a) False (b) True
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Confirm → Pay → Shop → Cart → Address
    Design B: Home → Cart → Pay → Size → Address
11. 11.True or false: a wireframe uses the final pictures. (a) True (b) False
12. 12.Which of these is true of a final design? (a) is a quick sketch (b) uses the final pictures (c) has no real colours (d) shows where things go
13. 13.Which colour pair is hard to read? (a) white on dark green (b) black on pale grey (c) black on yellow (d) pale pink on white
14. 14.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
15. 15.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
16. 16.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) pick a dish (c) track the order (d) add it to the cart
17. 17.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
18. 18.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 68 px tall
    Next button: 52 px tall
    Send button: 52 px tall
    Start button: 24 px tall (a) Send (b) Start (c) Help (d) Next
19. 19.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
20. 20.True or false: how fast a task is done is about UI (the look). (a) True (b) False
21. 21.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the phone settings (c) the last app used (d) that tab’s main screen
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Shop → Menu → Cart → Pay
    Design B: Home → Pay → Size → Menu → Address
23. 23.True or false: a final design shows where things go. (a) True (b) False
24. 24.🔢 In a quiz-app flow, which comes FIRST? (a) pick an answer (b) see if it is right (c) read a question (d) tap “Start quiz”
25. 25.🧭 Which part of navigation hides extra links? (a) a tab bar (b) the back button (c) a menu button
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Title: 21 px
    Hint: 12 px
    Footer: 19 px
    Menu: 17 px (a) Footer (b) Caption (c) Hint (d) Title
27. 27.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
28. 28.💾 What does this code show? (Positions start at 0.)
    let songs = ["Rain", "Ocean", "Sunrise", "Kites", "Stars"];
    show(songs[4]); (a) Stars (b) Ocean (c) Rain (d) Sunrise
29. 29.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) colour as the only clue (d) labels on every icon
30. 30.💾 What does this code show? (Positions start at 0.)
    let notes = ["Science", "Maths", "Hindi"];
    show(notes[1]); (a) Hindi (b) Science (c) Maths
31. 31.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 68 px tall
    Done button: 36 px tall
    Next button: 52 px tall
    Help button: 56 px tall (a) Next (b) Done (c) Cancel (d) Help
32. 32.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
33. 33.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Back button: 32 px tall
    Save button: 64 px tall
    Start button: 40 px tall
34. 34.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ search box ]
    [ title text ]
    [ filter buttons ]
    [ tab bar ] (a) tab bar (b) title text (c) search box
35. 35.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
36. 36.True or false: a final design shows the real fonts. (a) True (b) False
37. 37.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
38. 38.🔢 In a sign-up flow, which comes LAST? (a) enter the code sent (b) see the home screen (c) tap “Sign up” (d) type name and email
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Title: 16 px
    Label: 13 px (a) Title (b) Caption (c) Label
40. 40.True or false: the font size is about UX (the experience). (a) False (b) True

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