App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 30 · 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.True or false: a final design shows the real fonts. (a) True (b) False
2. 2.🎨 Who should you test the UX with? (a) nobody (b) real users (c) the app icon (d) only yourself
3. 3.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
4. 4.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
5. 5.Which colour pair is hard to read? (a) dark blue on white (b) white on dark green (c) black on pale grey (d) red on green
6. 6.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) tiny tap areas (d) fast-flashing lights
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Help page”
   2. tap the Lessons tab
   3. open “Score card”
   4. tap the Lessons tab
   How many times must you tap Back to reach the main screen of this tab?
8. 8.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
9. 9.🔢 In a sign-up flow, which comes first: “type name and email” or “enter the code sent”? (a) type name and email (b) enter the code sent
10. 10.Which of these is true of the back button? (a) shows 3 to 5 icons (b) sits at the bottom (c) opens a list of pages (d) goes to the last screen
11. 11.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) goes to the last screen (c) opens a list of pages (d) undoes one move
12. 12.True or false: how many taps it takes is about UI (the look). (a) True (b) False
13. 13.Which colour pair is easy to read? (a) yellow on white (b) dark blue on black (c) white on black (d) red on green
14. 14.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Score card”
    3. tap the Lessons tab
    4. open “Edit photo”
    Which screen are you on now? (a) Score card (b) Map (c) Lessons (d) Edit photo
15. 15.True or false: a wireframe has the real colours. (a) False (b) True
16. 16.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “make a password”? (a) make a password (b) tap “Sign up”
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 14 px
    Title: 18 px
    Body text: 17 px
    Caption: 24 px
    Label: 24 px (a) Title (b) Caption (c) Body text (d) Menu
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Size → Results → Confirm
    Design B: Home → Item → Results → Menu → Size → Cart (a) Design A (b) Design B
19. 19.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
20. 20.Which of these fits saving on the phone? (a) a draft you are typing (b) chat messages to friends (c) a class leaderboard (d) a shared to-do list
21. 21.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
22. 22.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 64 px tall
    Save button: 68 px tall
    Done button: 68 px tall
    Send button: 40 px tall (a) Start (b) Done (c) Send (d) Save
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
25. 25.Which colour pair is easy to read? (a) pale pink on white (b) light grey on white (c) dark blue on black (d) dark blue on white
26. 26.🧭 Which part of navigation goes to the last screen? (a) the back button (b) a tab bar (c) a menu button
27. 27.💾 What number does this code show?
    let notes = ["Maths", "Art", "Sports"];
    notes.push("Hindi");
    show(notes.length);
28. 28.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) the same screen (c) a clear next step (d) a dead end
29. 29.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
30. 30.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) pick an answer (c) read a question (d) see the final score
31. 31.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
32. 32.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
33. 33.Which of these is about UX (the experience)? (a) the theme colours (b) the screen layout (c) the button colours (d) how users feel after
34. 34.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 32 px tall
    Back button: 48 px tall
    Done button: 52 px tall (a) Back (b) Done (c) Start
35. 35.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
36. 36.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Pay → Results → Item → Menu
    Design B: Home → Offers → Address → Confirm → Pens (a) Design B (b) Design A
37. 37.True or false: a clear word like Save is good button design. (a) False (b) True
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Chat tab
    3. open “Friend list”
    4. tap Back
    Which screen are you on now? (a) Feed (b) Chat (c) Friend list (d) Settings
39. 39.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it runs the app (c) it saves data (d) changes are quick
40. 40.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 56 px tall
    Save button: 36 px tall
    Back button: 40 px tall

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