App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 54 · 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.🖼️ In this wireframe (top to bottom), what is right below the Add button?
   [ big picture ]
   [ list of items ]
   [ Add button ]
   [ title text ] (a) title text (b) list of items (c) big picture
2. 2.🔢 In a food-order flow, what comes right after “open the menu”? (a) add it to the cart (b) pick a dish (c) check the cart (d) pay for the order
3. 3.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
4. 4.💾 What number does this code show?
   let notes = ["Hindi", "Art", "Music"];
   notes.push("Maths");
   notes.push("Science");
   show(notes.length);
5. 5.Which of these is about UX (the experience)? (a) the theme colours (b) the button colours (c) how many taps it takes (d) the font size
6. 6.Which of these is true of a menu button? (a) hides extra links (b) switches main sections (c) shows 3 to 5 icons (d) undoes one move
7. 7.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
8. 8.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 22 px
   Caption: 12 px
   Title: 18 px (a) Title (b) Footer (c) Caption
10. 10.🔢 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
11. 11.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) open the app (b) see the home screen
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Footer: 11 px
    Body text: 23 px
    Label: 13 px
13. 13.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Art", "Maths"];
    show(notes[0]); (a) Hindi (b) Art (c) Maths
14. 14.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 3 to 5 (d) 20
15. 15.Which of these is true of the back button? (a) hides extra links (b) sits at the bottom (c) undoes one move (d) shows 3 to 5 icons
16. 16.True or false: the theme colours is about UX (the experience). (a) True (b) False
17. 17.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) icons with no labels
18. 18.🔢 In a sign-up flow, which comes first: “see the home screen” or “make a password”? (a) see the home screen (b) make a password
19. 19.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
20. 20.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Quiz tab
    2. open “Badges”
    3. tap Back
    4. tap the Me tab
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔍 Which is the odd one out? (a) how fast a task is done (b) the screen layout (c) the theme colours (d) the button colours
24. 24.🔢 In a food-order flow, which comes first: “pay for the order” or “add it to the cart”? (a) add it to the cart (b) pay for the order
25. 25.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
26. 26.🔢 In a sign-up flow, what comes right after “make a password”? (a) enter the code sent (b) see the home screen (c) open the app (d) type name and email
27. 27.True or false: a final design uses the final pictures. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) text that can grow (d) icons with no labels
29. 29.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) tab bar (c) dead end (d) shortcut
30. 30.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a colour theme (d) a type of font
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Body text: 19 px
    Title: 26 px
    Hint: 9 px (a) Title (b) Hint (c) Body text (d) Footer
32. 32.💾 What number does this code show?
    let lives = 4;
    lives = lives - 4;
    lives = lives + 3;
    show(lives);
33. 33.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
34. 34.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) check the cart (b) pay for the order
35. 35.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it runs the app (c) it saves data (d) changes are quick
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Confirm → Search → Cart → Shop
    Design B: Home → Shop → Search → Confirm → Menu → Item → Results
37. 37.🔀 Why plan the user flow before building? (a) so each step is clear (b) to add more taps (c) to skip testing (d) to hide the buttons
38. 38.True or false: notes to read offline fits saving on the phone. (a) False (b) True
39. 39.Which of these is about UI (the look)? (a) whether users get lost (b) how many taps it takes (c) the theme colours (d) how fast a task is done
40. 40.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button

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