App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 649 · 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: the button colours is about UX (the experience). (a) True (b) False
2. 2.True or false: strong colour contrast is poor button design. (a) False (b) True
3. 3.🖼️ In this wireframe (top to bottom), what is right below the list of items?
   [ list of items ]
   [ Save button ]
   [ big picture ]
   [ top bar ]
   [ filter buttons ]
   [ search box ] (a) top bar (b) big picture (c) Save button (d) search box
4. 4.True or false: a final design uses plain grey boxes. (a) True (b) False
5. 5.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a class leaderboard (c) notes to read offline (d) a draft you are typing
6. 6.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) open the app (c) tap “Sign up” (d) enter the code sent
7. 7.🎨 UI stands for user ___. (a) idea (b) internet (c) interface (d) input
8. 8.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
9. 9.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.Which colour pair is hard to read? (a) light grey on white (b) black on yellow (c) dark blue on white (d) white on dark green
11. 11.True or false: the icon shapes is about UX (the experience). (a) False (b) True
12. 12.💾 What number does this code show?
    let songs = ["Stars", "Ocean", "Sunrise"];
    songs.push("Kites");
    show(songs.length);
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Pens → Shop
    Design B: Home → Shop → Offers (a) Design A (b) Design B
14. 14.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Item
    Design B: Home → Results → Pay → Size (a) Design B (b) Design A
15. 15.🧭 Which part of navigation switches main sections? (a) a menu button (b) a tab bar (c) the back button
16. 16.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Cart → Shop → Confirm → Pay
    Design B: Home → Item → Confirm → Size → Cart → Address → Shop (a) Design B (b) Design A
17. 17.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to look busy (c) to hide the menu (d) to use more battery
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Pay
    Design B: Home → Cart → Shop → Menu → Address → Size (a) Design B (b) Design A
19. 19.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
20. 20.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
21. 21.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 44 px tall
    Back button: 68 px tall
    Send button: 64 px tall (a) Back (b) Next (c) Send
22. 22.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 0 (c) 1 (d) 2
23. 23.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a type of password (d) a simple screen sketch
24. 24.🔢 In a food-order flow, which comes LAST? (a) track the order (b) pay for the order (c) check the cart (d) pick a dish
25. 25.🖼️ How many parts (boxes) does this wireframe have?
    [ filter buttons ]
    [ big picture ]
    [ menu icon ]
    [ list of items ]
    [ top bar ]
    [ Add button ]
26. 26.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 64 px tall
    Next button: 32 px tall
    Save button: 52 px tall
    Back button: 72 px tall (a) Send (b) Next (c) Back (d) Save
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. open “Edit photo”
    3. tap Back
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 32 px tall
    Help button: 52 px tall
    Start button: 56 px tall
    Save button: 40 px tall
29. 29.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ Save button ]
    [ filter buttons ]
    [ menu icon ]
    [ tab bar ] (a) menu icon (b) tab bar (c) filter buttons
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Item → Results → Pens → Cart → Address
    Design B: Home → Pens → Menu
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Footer: 15 px
    Label: 14 px
    Hint: 17 px
32. 32.Which of these is true of the back button? (a) shows 3 to 5 icons (b) switches main sections (c) goes to the last screen (d) sits at the bottom
33. 33.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ search box ]
    [ filter buttons ]
    [ Add button ]
    [ menu icon ] (a) menu icon (b) filter buttons (c) Add button
34. 34.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) goes to the last screen (c) hides extra links (d) undoes one move
35. 35.🔢 In a sign-up flow, what comes right after “type name and email”? (a) tap “Sign up” (b) make a password (c) open the app (d) enter the code sent
36. 36.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Science", "Hindi", "Music"];
    show(notes[0]); (a) Maths (b) Hindi (c) Music (d) Science
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) captions on videos (d) text that can grow
38. 38.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) see the final score (c) pick an answer (d) read a question
39. 39.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
    [ Save button ]
    [ Add button ]
    [ filter buttons ]
    [ tab bar ]
    [ top bar ]
    [ menu icon ] (a) Add button (b) top bar (c) tab bar (d) Save button
40. 40.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ Save button ]
    [ list of items ]
    [ tab bar ]
    [ search box ] (a) list of items (b) Save button (c) tab bar

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