App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 934 · 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.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to add more taps (c) to skip testing (d) so each step is clear
2. 2.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it saves data (c) changes are quick (d) it adds colours
3. 3.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a microphone (c) a phone case (d) a 3D printer
4. 4.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
5. 5.🔢 In a quiz-app flow, which comes first: “see the final score” or “see if it is right”? (a) see the final score (b) see if it is right
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 14 px
   Title: 20 px
   Hint: 10 px
   Footer: 18 px
   Menu: 12 px
7. 7.Which of these is about UX (the experience)? (a) the button colours (b) the theme colours (c) the font size (d) how easy sign-up is
8. 8.🔢 In a photo-post flow, which comes FIRST? (a) post the photo (b) open the camera screen (c) take the photo (d) write a caption
9. 9.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
10. 10.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Body text: 14 px
    Caption: 10 px
    Footer: 23 px
    Hint: 21 px
12. 12.🔢 In a sign-up flow, which comes first: “see the home screen” or “enter the code sent”? (a) see the home screen (b) enter the code sent
13. 13.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) inside a button (d) at the bottom
14. 14.🔍 Which is the odd one out? (a) the screen layout (b) how easy sign-up is (c) the font size (d) the theme colours
15. 15.🔢 In a sign-up flow, which comes first: “make a password” or “type name and email”? (a) make a password (b) type name and email
16. 16.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a picture goes here (c) a closed app (d) delete this
17. 17.Which colour pair is hard to read? (a) black on yellow (b) black on pale grey (c) pale pink on white (d) white on black
18. 18.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) strong colour contrast (d) sudden loud sounds
19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Badges”
    2. tap Back
    3. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) big touch targets (d) sudden loud sounds
21. 21.True or false: a big, easy tap area is good button design. (a) True (b) False
22. 22.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
23. 23.Which of these fits saving in the cloud? (a) a draft you are typing (b) a shared to-do list (c) notes to read offline (d) your last game level
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pay → Confirm
    Design B: Home → Confirm → Shop → Offers → Menu
25. 25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 52 px tall
    Cancel button: 24 px tall
    Done button: 52 px tall (a) Cancel (b) Help (c) Done
26. 26.💾 What does this code show? (Positions start at 0.)
    let notes = ["Science", "Hindi", "Sports"];
    show(notes[1]); (a) Hindi (b) Sports (c) Science
27. 27.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
28. 28.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) perfect UX (c) no UI at all (d) good UI but poor UX
29. 29.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
30. 30.🔢 In a sign-up flow, what comes right after “type name and email”? (a) tap “Sign up” (b) open the app (c) make a password (d) enter the code sent
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pens → Cart → Menu → Search → Item
    Design B: Home → Pens → Cart → Search → Pay
32. 32.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
33. 33.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) text that can grow
34. 34.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) a random page (c) the last app used (d) that tab’s main screen
35. 35.True or false: space between buttons is good button design. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) the button colours (b) how easy sign-up is (c) how many taps it takes (d) how fast a task is done
37. 37.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) undoes one move (d) sits at the bottom
39. 39.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 40 px tall
    Cancel button: 44 px tall
    Save button: 56 px tall
    Send button: 56 px tall
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Cart → Confirm → Menu → Item → Pens
    Design B: Home → Item → Offers

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