App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 945 · 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.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Map”
   2. tap the Search tab
   3. tap the Search tab
   4. tap the Profile tab
   How many times must you tap Back to reach the main screen of this tab?
2. 2.🔢 In a food-order flow, what comes right after “pick a dish”? (a) track the order (b) add it to the cart (c) check the cart (d) open the menu
3. 3.🔘 Our rule: buttons are at least 48 px tall. The Back button is 24 px tall. How many px taller must it be?
4. 4.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) write a caption (c) take the photo (d) open the camera screen
5. 5.Which of these fits saving on the phone? (a) a class leaderboard (b) photos on two devices (c) chat messages to friends (d) notes to read offline
6. 6.True or false: strong colour contrast is good button design. (a) False (b) True
7. 7.🖼️ How many parts (boxes) does this wireframe have?
   [ menu icon ]
   [ Add button ]
   [ tab bar ]
   [ top bar ]
   [ list of items ]
   [ search box ]
8. 8.💾 Which can hold many values in order? (a) a switch (b) a single number (c) a list (d) a button
9. 9.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
10. 10.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) good UX but poor UI (c) perfect UX (d) good UI but poor UX
11. 11.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) the path through screens (d) a colour theme
12. 12.🔢 In a quiz-app flow, which comes LAST? (a) tap “Start quiz” (b) see the final score (c) read a question (d) pick an answer
13. 13.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 60 px tall
    Save button: 36 px tall
    Done button: 48 px tall (a) Done (b) Save (c) Cancel
14. 14.Which of these is true of the back button? (a) undoes one move (b) shows 3 to 5 icons (c) hides extra links (d) switches main sections
15. 15.Which of these fits saving in the cloud? (a) a draft you are typing (b) a class leaderboard (c) notes to read offline (d) the sound on/off setting
16. 16.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) shows where things go (d) uses the final pictures
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) fast-flashing lights
18. 18.🔢 In a quiz-app flow, which comes first: “see the final score” or “see if it is right”? (a) see if it is right (b) see the final score
19. 19.True or false: how users feel after is about UI (the look). (a) True (b) False
20. 20.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
21. 21.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
22. 22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Search
    Design B: Home → Search → Shop → Size → Offers → Confirm (a) Design B (b) Design A
23. 23.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Maths", "Hindi", "Art", "Music"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Sports (b) Art (c) Hindi (d) Maths
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Results → Pens → Search → Shop → Confirm
    Design B: Home → Pay → Results (a) Design B (b) Design A
25. 25.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Results → Confirm → Shop → Cart → Pens
    Design B: Home → Pay → Shop → Pens → Cart → Offers (a) Design B (b) Design A
27. 27.Which colour pair is hard to read? (a) black on yellow (b) yellow on white (c) white on dark green (d) black on pale grey
28. 28.🔢 In a sign-up flow, which comes first: “enter the code sent” or “type name and email”? (a) enter the code sent (b) type name and email
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Menu
    Design B: Home → Results → Menu → Confirm
30. 30.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
31. 31.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
32. 32.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
33. 33.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
34. 34.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
35. 35.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
36. 36.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. open “Map”
    3. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
37. 37.🔍 Which is the odd one out? (a) the theme colours (b) how users feel after (c) whether users get lost (d) how fast a task is done
38. 38.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Badges”
    3. tap the Lessons tab
    Which screen are you on now? (a) Match report (b) Quiz (c) Lessons (d) Badges
39. 39.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Map”
    3. open “Help page”
    4. tap the Me tab
    5. open “Map”
    Which screen are you on now? (a) Lessons (b) Help page (c) Map (d) Quiz

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