App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 66 · 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 part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) text that can grow
3. 3.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
4. 4.Which colour pair is easy to read? (a) white on black (b) red on green (c) light grey on white (d) yellow on white
5. 5.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
6. 6.💾 What number does this code show?
   let lives = 8;
   lives = lives - 4;
   lives = lives + 2;
   show(lives);
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Back button is 44 px tall. How many px taller must it be?
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
9. 9.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) see the final score (b) tap “Start quiz” (c) read a question (d) see if it is right
10. 10.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
11. 11.🔢 In a photo-post flow, which comes first: “open the camera screen” or “post the photo”? (a) post the photo (b) open the camera screen
12. 12.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Edit photo”
    3. open “Match report”
    Which screen are you on now? (a) Map (b) Lessons (c) Edit photo (d) Match report
13. 13.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 48 px tall
    Done button: 40 px tall
    Start button: 56 px tall (a) Next (b) Start (c) Done
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) captions on videos (d) big touch targets
15. 15.🔢 In a food-order flow, which comes first: “pick a dish” or “pay for the order”? (a) pay for the order (b) pick a dish
16. 16.🧭 Why should every screen show where you are? (a) to use more battery (b) so users do not get lost (c) to look busy (d) to hide the menu
17. 17.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Match report”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
18. 18.Which of these is true of a final design? (a) is a quick sketch (b) has no real colours (c) shows the real fonts (d) shows where things go
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
20. 20.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) post the photo (c) write a caption (d) open the camera screen
21. 21.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos
22. 22.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 28 px tall
    Cancel button: 72 px tall
    Save button: 48 px tall (a) Cancel (b) Done (c) Save
23. 23.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) open the menu (c) pick a dish (d) check the cart
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Confirm → Cart → Menu → Shop → Pay
    Design B: Home → Pay → Menu
25. 25.💾 pop() takes off the last item. What does this code show?
    let friends = ["Aman", "Kabir", "Arjun", "Zoya", "Riya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Zoya (c) Arjun (d) Kabir
26. 26.True or false: grey text on grey is good button design. (a) True (b) False
27. 27.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
28. 28.Which colour pair is hard to read? (a) black on yellow (b) dark blue on white (c) red on green (d) black on pale grey
29. 29.True or false: the screen layout is about UI (the look). (a) False (b) True
30. 30.🔢 In a quiz-app flow, which comes first: “pick an answer” or “see if it is right”? (a) see if it is right (b) pick an answer
31. 31.✏️ Why draw a wireframe before coding? (a) it runs the app (b) it saves data (c) changes are quick (d) it adds colours
32. 32.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to hide the sound (d) to slow them down
33. 33.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 60 px tall
    Help button: 40 px tall
    Back button: 60 px tall
34. 34.🔢 In a food-order flow, which comes first: “track the order” or “add it to the cart”? (a) add it to the cart (b) track the order
35. 35.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
36. 36.Which of these is true of the back button? (a) goes to the last screen (b) switches main sections (c) shows 3 to 5 icons (d) opens a list of pages
37. 37.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Ocean", "Monsoon"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Ocean (b) Monsoon (c) Kites
38. 38.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. open “Video”
    3. tap the Profile tab
    4. open “Help page”
    5. open “Video”
    Which screen are you on now? (a) Help page (b) Score card (c) Video (d) Home
39. 39.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) read a question (b) tap “Start quiz”
40. 40.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone

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