App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 237 · 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 switches main sections? (a) a menu button (b) a tab bar (c) the back button
2. 2.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
3. 3.🖼️ In this wireframe (top to bottom), what is right below the list of items?
   [ menu icon ]
   [ list of items ]
   [ big picture ]
   [ top bar ]
   [ search box ] (a) search box (b) menu icon (c) big picture (d) top bar
4. 4.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
5. 5.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) a picture goes here (c) delete this (d) an error
6. 6.🔢 In a food-order flow, what comes right after “check the cart”? (a) open the menu (b) pay for the order (c) pick a dish (d) add it to the cart
7. 7.True or false: icons with no meaning is good button design. (a) True (b) False
8. 8.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
9. 9.True or false: strong colour contrast is good button design. (a) False (b) True
10. 10.💾 What number does this code show?
    let friends = ["Kabir", "Riya", "Zoya", "Arjun"];
    friends.push("Aman");
    show(friends.length);
11. 11.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) shows where things go (d) looks like the real app
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Results
    Design B: Home → Item → Shop → Address → Confirm → Pens → Search
13. 13.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it runs the app (c) it adds colours (d) it saves data
14. 14.🔢 In a food-order flow, which comes first: “add it to the cart” or “check the cart”? (a) check the cart (b) add it to the cart
15. 15.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Help page”
    3. tap the Search tab
    4. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
17. 17.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 10 (c) 2 (d) 1
18. 18.💾 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
19. 19.🎨 UX stands for user ___. (a) extra (b) experience (c) example (d) express
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Body text: 16 px
    Footer: 22 px
    Label: 17 px (a) Label (b) Footer (c) Title (d) Body text
21. 21.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar
22. 22.Which of these is about UI (the look)? (a) how users feel after (b) the screen layout (c) how many taps it takes (d) how easy sign-up is
23. 23.💾 What number does this code show?
    let songs = ["Kites", "Ocean", "Rain"];
    songs.push("Sunrise");
    songs.push("Stars");
    show(songs.length);
24. 24.Which of these fits saving in the cloud? (a) a draft you are typing (b) a class leaderboard (c) your last game level (d) the sound on/off setting
25. 25.Which colour pair is hard to read? (a) white on dark green (b) light grey on white (c) black on yellow (d) white on black
26. 26.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 1 (d) 10 to 12
27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 36 px tall
    Help button: 64 px tall
    Save button: 48 px tall (a) Help (b) Save (c) Next
28. 28.Which of these fits saving on the phone? (a) a class leaderboard (b) photos on two devices (c) chat messages to friends (d) a draft you are typing
29. 29.🎨 Is this about UI or UX: the screen layout? (a) UI (b) UX
30. 30.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Menu → Cart → Pay → Address
    Design B: Home → Cart → Results → Address (a) Design A (b) Design B
32. 32.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) read a question (b) pick an answer (c) tap “Start quiz” (d) see the final score
33. 33.🧭 Which part of navigation hides extra links? (a) the back button (b) a tab bar (c) a menu button
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 23 px
    Label: 9 px
    Caption: 17 px (a) Label (b) Hint (c) Caption
35. 35.🔍 Which is the odd one out? (a) how users feel after (b) whether users get lost (c) how fast a task is done (d) the screen layout
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Menu: 17 px
    Body text: 23 px (a) Hint (b) Menu (c) Body text
37. 37.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) check the cart (b) track the order
38. 38.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ title text ]
    [ Save button ]
    [ filter buttons ] (a) filter buttons (b) title text (c) list of items (d) Save button
39. 39.Which of these is true of a tab bar? (a) opens a list of pages (b) goes to the last screen (c) undoes one move (d) switches main sections
40. 40.🔢 In a photo-post flow, which comes first: “write a caption” or “add a filter”? (a) add a filter (b) write a caption

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