App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 248 · 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.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
2. 2.Which colour pair is easy to read? (a) dark blue on black (b) pale pink on white (c) white on dark green (d) red on green
3. 3.True or false: a shared to-do list fits saving on the phone. (a) False (b) True
4. 4.True or false: photos on two devices fits saving in the cloud. (a) True (b) False
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Search → Menu → Address
   Design B: Home → Shop → Menu → Offers → Address → Search
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Search → Cart → Address → Size
   Design B: Home → Pay → Confirm → Item (a) Design B (b) Design A
7. 7.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) icons with no labels (d) colour as the only clue
9. 9.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) pay for the order (c) open the menu (d) pick a dish
10. 10.🧭 Which part of navigation opens a list of pages? (a) a menu button (b) the back button (c) a tab bar
11. 11.True or false: a wireframe is a quick sketch. (a) False (b) True
12. 12.🖼️ In this wireframe (top to bottom), what is right below the big picture?
    [ top bar ]
    [ Add button ]
    [ menu icon ]
    [ search box ]
    [ big picture ]
    [ Save button ] (a) search box (b) Add button (c) top bar (d) Save button
13. 13.Which of these fits saving in the cloud? (a) the sound on/off setting (b) photos on two devices (c) a draft you are typing (d) notes to read offline
14. 14.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
15. 15.True or false: whether users get lost is about UX (the experience). (a) True (b) False
16. 16.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) better UX (c) worse UX (d) more colours
17. 17.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ menu icon ]
    [ list of items ]
    [ Save button ]
    [ search box ]
    [ big picture ] (a) list of items (b) Save button (c) menu icon (d) big picture
18. 18.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Footer: 15 px
    Title: 16 px
20. 20.Which of these is about UI (the look)? (a) how fast a task is done (b) the button colours (c) whether users get lost (d) how easy sign-up is
21. 21.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
22. 22.🔢 In a sign-up flow, which comes first: “make a password” or “tap “Sign up””? (a) tap “Sign up” (b) make a password
23. 23.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) good UI but poor UX (c) good UX but poor UI (d) no UI at all
24. 24.🔢 In a quiz-app flow, which comes FIRST? (a) pick an answer (b) tap “Start quiz” (c) see the final score (d) see if it is right
25. 25.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
26. 26.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ search box ]
    [ title text ]
    [ Add button ]
    [ Save button ] (a) list of items (b) search box (c) Add button (d) Save button
27. 27.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Address → Item → Menu
    Design B: Home → Size → Pens → Cart → Pay → Confirm → Shop
28. 28.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Body text: 10 px
    Caption: 17 px (a) Title (b) Caption (c) Body text
30. 30.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
31. 31.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
32. 32.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
33. 33.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) pencil and paper (c) a phone case (d) a 3D printer
34. 34.💾 Data saved only on the phone is lost when ___. (a) you send a message (b) the screen turns off (c) the phone is lost (d) the app is closed
35. 35.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
36. 36.💾 What number does this code show?
    let score = 9;
    score = score - 8;
    score = score + 1;
    show(score);
37. 37.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
38. 38.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) undoes one move (c) switches main sections (d) hides extra links
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ top bar ]
    [ big picture ]
    [ menu icon ]
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Size → Pens → Shop → Search → Address
    Design B: Home → Search → Offers → Pay (a) Design B (b) Design A

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