App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 814 · 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 this code show? (Positions start at 0.)
   let friends = ["Arjun", "Meera", "Aman", "Riya"];
   show(friends[1]); (a) Aman (b) Meera (c) Riya (d) Arjun
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Shop → Address → Results → Cart → Confirm
   Design B: Home → Search → Item → Pens → Pay → Shop → Confirm
3. 3.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
4. 4.True or false: the button colours is about UI (the look). (a) True (b) False
5. 5.✏️ Why draw a wireframe before coding? (a) it adds colours (b) changes are quick (c) it runs the app (d) it saves data
6. 6.🔢 In a sign-up flow, what comes right after “open the app”? (a) tap “Sign up” (b) type name and email (c) enter the code sent (d) see the home screen
7. 7.✏️ What is a wireframe? (a) a type of password (b) a charging cable (c) the finished app (d) a simple screen sketch
8. 8.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.🔘 Our rule: buttons are at least 48 px tall. The Send button is 24 px tall. How many px taller must it be?
10. 10.💾 Which works with no internet at all? (a) a cloud backup (b) data saved on the phone (c) a cloud leaderboard (d) a shared chat
11. 11.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
12. 12.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Menu → Size → Address → Item
    Design B: Home → Item → Confirm → Size → Results (a) Design B (b) Design A
13. 13.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
14. 14.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ list of items ]
    [ menu icon ]
    [ top bar ]
    [ search box ] (a) list of items (b) top bar (c) search box
15. 15.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
16. 16.True or false: photos on two devices fits saving in the cloud. (a) False (b) True
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Footer: 27 px
    Menu: 10 px (a) Label (b) Menu (c) Footer
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Footer: 13 px
    Menu: 20 px
    Hint: 15 px
    Title: 11 px
19. 19.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 24 px tall
    Done button: 64 px tall
    Next button: 48 px tall (a) Done (b) Next (c) Save
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Cart → Search → Pay → Address → Item
    Design B: Home → Item → Search → Size
21. 21.💾 What number does this code show?
    let notes = ["Hindi", "Sports", "Art"];
    notes.push("Maths");
    show(notes.length);
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. tap the Me tab
    3. tap the Quiz tab
    4. open “Help page”
    5. tap the Me tab
    Which screen are you on now? (a) Help page (b) Lessons (c) Me (d) Quiz
23. 23.🔘 Our rule: buttons are at least 48 px tall. The Next button is 44 px tall. How many px taller must it be?
24. 24.🔍 Which is the odd one out? (a) the screen layout (b) the button colours (c) the icon shapes (d) how many taps it takes
25. 25.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
26. 26.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ Add button ]
    [ search box ]
    [ tab bar ]
    [ big picture ]
    [ list of items ] (a) list of items (b) search box (c) big picture (d) Save button
27. 27.💾 Saving data in the cloud lets you ___. (a) shrink the app (b) never need a password (c) use it on any device (d) skip the internet
28. 28.True or false: how fast a task is done is about UX (the experience). (a) True (b) False
29. 29.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) type name and email (b) make a password (c) enter the code sent (d) open the app
30. 30.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Video”
    2. tap the Lessons tab
    3. open “Map”
    Which screen are you on now? (a) Quiz (b) Map (c) Video (d) Lessons
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Save button is 36 px tall. How many px taller must it be?
32. 32.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) tiny tap areas (d) colour as the only clue
33. 33.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap the Profile tab
    3. open “Friend list”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
34. 34.🔢 In a food-order flow, what comes right after “open the menu”? (a) track the order (b) pick a dish (c) pay for the order (d) add it to the cart
35. 35.🔘 Our rule: buttons are at least 48 px tall. The Send button is 28 px tall. How many px taller must it be?
36. 36.🔘 Is this good or poor button design: a big, easy tap area? (a) poor design (b) good design
37. 37.Which colour pair is easy to read? (a) dark blue on black (b) red on green (c) white on black (d) light grey on white
38. 38.🔍 Which is the odd one out? (a) the font size (b) the icon shapes (c) whether users get lost (d) the button colours
39. 39.🔀 What is a user flow? (a) a type of font (b) a colour theme (c) the path through screens (d) a charging cable
40. 40.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design

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