App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 556 · 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.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
2. 2.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) text that can grow (d) strong colour contrast
3. 3.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) the screen layout (d) the font size
4. 4.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
5. 5.Which colour pair is hard to read? (a) white on black (b) black on yellow (c) yellow on white (d) white on dark green
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Shop → Address → Offers → Cart
   Design B: Home → Offers → Confirm → Shop → Item → Cart (a) Design B (b) Design A
7. 7.True or false: photos on two devices fits saving on the phone. (a) True (b) False
8. 8.🌗 Is white on black easy or hard to read on a button? (a) hard to read (b) easy to read
9. 9.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
10. 10.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Map”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
11. 11.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these is about UI (the look)? (a) the font size (b) how users feel after (c) how easy sign-up is (d) how fast a task is done
13. 13.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) nobody (d) real users
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Cart → Menu
    Design B: Home → Menu → Results → Confirm → Pens → Size → Item
15. 15.💾 What number does this code show?
    let score = 3;
    score = score - 1;
    score = score + 5;
    show(score);
16. 16.True or false: photos on two devices fits saving in the cloud. (a) True (b) False
17. 17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Map”
    3. open “Match report”
    4. tap the Settings tab
    Which screen are you on now? (a) Settings (b) Map (c) Match report (d) Feed
18. 18.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) on the phone (b) in the cloud
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 40 px tall
    Next button: 64 px tall
    Back button: 60 px tall (a) Back (b) Next (c) Cancel
20. 20.♿ Why add captions to videos? (a) to hide the sound (b) to add colour (c) to slow them down (d) so anyone can follow
21. 21.♿ A screen has 11 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
22. 22.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) tap “Start quiz” (b) read a question
23. 23.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
24. 24.🔢 In a sign-up flow, which comes FIRST? (a) see the home screen (b) open the app (c) tap “Sign up” (d) enter the code sent
25. 25.Which of these is about UX (the experience)? (a) the theme colours (b) the font size (c) the button colours (d) how easy sign-up is
26. 26.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 60 px tall
    Back button: 60 px tall
    Send button: 44 px tall (a) Back (b) Send (c) Done
28. 28.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Label: 26 px
    Footer: 21 px
    Hint: 25 px
    Caption: 21 px (a) Hint (b) Footer (c) Label (d) Title
30. 30.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 44 px tall
    Save button: 64 px tall
    Back button: 60 px tall (a) Cancel (b) Back (c) Save
31. 31.🔢 In a photo-post flow, which comes LAST? (a) open the camera screen (b) add a filter (c) take the photo (d) post the photo
32. 32.🎨 UX stands for user ___. (a) example (b) express (c) experience (d) extra
33. 33.🔍 Which is the odd one out? (a) the icon shapes (b) the screen layout (c) how many taps it takes (d) the button colours
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Menu: 11 px
    Title: 16 px
    Body text: 17 px (a) Caption (b) Body text (c) Menu (d) Title
35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. tap the Feed tab
    4. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
36. 36.🔢 In a food-order flow, what comes right after “pay for the order”? (a) pick a dish (b) check the cart (c) track the order (d) open the menu
37. 37.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) strong colour contrast
38. 38.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
39. 39.Which of these is true of a wireframe? (a) uses the final pictures (b) looks like the real app (c) uses plain grey boxes (d) has the real colours
40. 40.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud

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