App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 377 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Address → Confirm → Pens → Search
   Design B: Home → Address → Item → Search → Results → Menu → Size
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Cart → Pens → Size → Confirm
   Design B: Home → Item → Pens → Pay → Menu → Search → Results
3. 3.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
4. 4.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
5. 5.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) a type of font (d) the path through screens
6. 6.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 60 px tall
   Next button: 40 px tall
   Send button: 32 px tall
7. 7.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it adds colours (c) it runs the app (d) it saves data
8. 8.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Confirm → Offers → Shop
   Design B: Home → Shop → Confirm → Size → Results → Offers
9. 9.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
10. 10.🔢 In a food-order flow, which comes first: “add it to the cart” or “track the order”? (a) add it to the cart (b) track the order
11. 11.🔢 In a food-order flow, what comes right after “pick a dish”? (a) pay for the order (b) open the menu (c) add it to the cart (d) track the order
12. 12.True or false: whether users get lost is about UX (the experience). (a) True (b) False
13. 13.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
14. 14.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a microphone (c) a 3D printer (d) pencil and paper
15. 15.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 1 (c) 10 (d) 0
16. 16.💾 What number does this code show?
    let stars = 9;
    stars = stars - 3;
    stars = stars + 3;
    show(stars);
17. 17.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 32 px tall
    Done button: 56 px tall
    Send button: 52 px tall
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap the Me tab
    3. tap the Lessons tab
    4. open “Map”
    Which screen are you on now? (a) Quiz (b) Map (c) Lessons (d) Edit photo
19. 19.Which of these fits saving on the phone? (a) a shared to-do list (b) notes to read offline (c) a class leaderboard (d) chat messages to friends
20. 20.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) pick a dish (b) open the menu (c) track the order (d) check the cart
21. 21.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
22. 22.🧭 Which part of navigation switches main sections? (a) a tab bar (b) the back button (c) a menu button
23. 23.True or false: a wireframe looks like the real app. (a) True (b) False
24. 24.🔢 In a quiz-app flow, which comes first: “see if it is right” or “read a question”? (a) see if it is right (b) read a question
25. 25.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Hint: 26 px
    Menu: 21 px
    Label: 9 px (a) Label (b) Caption (c) Menu (d) Hint
27. 27.🔢 In a food-order flow, what comes right after “check the cart”? (a) add it to the cart (b) pay for the order (c) track the order (d) pick a dish
28. 28.Which of these is about UI (the look)? (a) the theme colours (b) how users feel after (c) how easy sign-up is (d) how many taps it takes
29. 29.🔢 In a food-order flow, what comes right after “open the menu”? (a) add it to the cart (b) check the cart (c) pick a dish (d) pay for the order
30. 30.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) track the order (b) pay for the order
31. 31.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
32. 32.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 44 px tall
    Start button: 56 px tall
    Next button: 52 px tall (a) Start (b) Next (c) Send
33. 33.True or false: the icon shapes is about UI (the look). (a) True (b) False
34. 34.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
35. 35.True or false: the screen layout is about UI (the look). (a) True (b) False
36. 36.💾 What number does this code show?
    let songs = ["Stars", "Kites", "Rain"];
    songs.push("Sunrise");
    show(songs.length);
37. 37.💾 pop() takes off the last item. What does this code show?
    let friends = ["Riya", "Arjun", "Aman", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Riya (c) Meera (d) Arjun
38. 38.Which of these is about UI (the look)? (a) how users feel after (b) how fast a task is done (c) whether users get lost (d) the button colours
39. 39.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
40. 40.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) read a question (b) see if it is right (c) see the final score (d) pick an answer

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