App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 353 · 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 wireframe looks like the real app. (a) False (b) True
2. 2.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see if it is right (b) see the final score (c) tap “Start quiz” (d) pick an answer
3. 3.🖼️ In this wireframe (top to bottom), what is right below the menu icon?
   [ top bar ]
   [ search box ]
   [ menu icon ]
   [ list of items ]
   [ Add button ]
   [ tab bar ] (a) top bar (b) tab bar (c) search box (d) list of items
4. 4.💾 What number does this code show?
   let lives = 6;
   lives = lives - 5;
   lives = lives + 1;
   show(lives);
5. 5.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
6. 6.🖼️ In this wireframe (top to bottom), what is right above the search box?
   [ tab bar ]
   [ search box ]
   [ top bar ]
   [ big picture ] (a) top bar (b) tab bar (c) big picture
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. tap the Home tab
   3. tap the Home tab
   How many times must you tap Back to reach the main screen of this tab?
8. 8.💾 What does this code show? (Positions start at 0.)
   let notes = ["Music", "Science", "Maths"];
   show(notes[2]); (a) Music (b) Maths (c) Science
9. 9.🧭 What does the back button usually do? (a) opens settings (b) closes all apps (c) goes to the last screen (d) deletes the page
10. 10.🎨 UX stands for user ___. (a) extra (b) experience (c) express (d) example
11. 11.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
12. 12.🔢 In a quiz-app flow, which comes first: “read a question” or “see if it is right”? (a) see if it is right (b) read a question
13. 13.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
14. 14.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) read a question (b) pick an answer
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 56 px tall
    Cancel button: 36 px tall
    Save button: 52 px tall
    Done button: 40 px tall
16. 16.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
17. 17.💾 What number does this code show?
    let score = 9;
    score = score - 7;
    score = score + 3;
    show(score);
18. 18.🔢 In a sign-up flow, which comes LAST? (a) tap “Sign up” (b) open the app (c) see the home screen (d) type name and email
19. 19.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) tiny tap areas (d) captions on videos
20. 20.True or false: a final design has no real colours. (a) True (b) False
21. 21.🔀 Why plan the user flow before building? (a) to skip testing (b) to hide the buttons (c) to add more taps (d) so each step is clear
22. 22.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
23. 23.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Results → Menu → Confirm
    Design B: Home → Menu → Shop → Pay → Confirm → Address → Offers
25. 25.💾 What number does this code show?
    let friends = ["Kabir", "Arjun", "Meera", "Zoya"];
    friends.push("Riya");
    show(friends.length);
26. 26.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) open the app (b) type name and email (c) see the home screen (d) make a password
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Hint: 24 px
    Caption: 12 px
    Label: 21 px (a) Menu (b) Caption (c) Label (d) Hint
28. 28.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.🔢 In a food-order flow, which comes LAST? (a) open the menu (b) pay for the order (c) check the cart (d) track the order
30. 30.🔘 Our rule: buttons are at least 48 px tall. The Next button is 20 px tall. How many px taller must it be?
31. 31.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 17 px
    Caption: 9 px
    Menu: 26 px (a) Caption (b) Title (c) Menu (d) Body text
33. 33.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) colour as the only clue
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. tap the Me tab
    3. tap the Me tab
    4. tap the Lessons tab
    Which screen are you on now? (a) Quiz (b) Me (c) Lessons
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Menu
    Design B: Home → Confirm → Offers → Pens → Pay → Menu
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap the Chat tab
    3. open “Badges”
    Which screen are you on now? (a) Badges (b) Chat (c) Help page (d) Feed
37. 37.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
38. 38.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) make a password (b) see the home screen (c) enter the code sent (d) type name and email
39. 39.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
40. 40.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design

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