App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 197 · 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 is the odd one out? (a) how fast a task is done (b) the icon shapes (c) the font size (d) the theme colours
2. 2.🔢 In a food-order flow, what comes right after “open the menu”? (a) check the cart (b) pay for the order (c) add it to the cart (d) pick a dish
3. 3.💾 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
4. 4.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
   [ Save button ]
   [ tab bar ]
   [ top bar ]
   [ search box ]
   [ menu icon ] (a) search box (b) Save button (c) menu icon (d) top bar
5. 5.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) add it to the cart (c) open the menu (d) pick a dish
6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. tap the Lessons tab
   3. open “Edit photo”
   4. tap the Quiz tab
   5. open “Score card”
   How many times must you tap Back to reach the main screen of this tab?
7. 7.Which colour pair is easy to read? (a) dark blue on black (b) red on green (c) black on yellow (d) light grey on white
8. 8.True or false: a wireframe uses plain grey boxes. (a) False (b) True
9. 9.Which of these is true of a tab bar? (a) undoes one move (b) opens a list of pages (c) shows 3 to 5 icons (d) goes to the last screen
10. 10.🔢 In a food-order flow, what comes right after “pick a dish”? (a) check the cart (b) track the order (c) add it to the cart (d) pay for the order
11. 11.Which colour pair is hard to read? (a) white on dark green (b) white on black (c) light grey on white (d) black on yellow
12. 12.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
13. 13.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Score card”
    2. open “Edit photo”
    3. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
14. 14.🔢 In a quiz-app flow, which comes FIRST? (a) pick an answer (b) tap “Start quiz” (c) see if it is right (d) read a question
15. 15.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) so anyone can follow (d) to slow them down
16. 16.True or false: whether users get lost is about UX (the experience). (a) False (b) True
17. 17.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) type name and email (b) tap “Sign up” (c) see the home screen (d) open the app
18. 18.True or false: space between buttons is good button design. (a) False (b) True
19. 19.True or false: a clear word like Save is good button design. (a) True (b) False
20. 20.True or false: the button colours is about UI (the look). (a) True (b) False
21. 21.🔢 In a food-order flow, which comes first: “pay for the order” or “open the menu”? (a) pay for the order (b) open the menu
22. 22.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the last app used (c) that tab’s main screen (d) the phone settings
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Match report”
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
24. 24.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
25. 25.💾 What number does this code show?
    let score = 4;
    score = score - 1;
    score = score + 5;
    show(score);
26. 26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Friend list”
    3. tap Back
    4. open “Map”
    5. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
27. 27.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
28. 28.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Search → Confirm
    Design B: Home → Pay → Shop
29. 29.🔢 In a photo-post flow, which comes first: “take the photo” or “post the photo”? (a) post the photo (b) take the photo
30. 30.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
31. 31.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) pick an answer (c) tap “Start quiz” (d) see the final score
32. 32.💾 What does this code show? (Positions start at 0.)
    let friends = ["Aman", "Meera", "Riya", "Arjun", "Zoya"];
    show(friends[2]); (a) Arjun (b) Riya (c) Meera (d) Aman
33. 33.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
34. 34.💾 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
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Home tab
    3. tap the Home tab
    How many times must you tap Back to reach the main screen of this tab?
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Menu: 11 px
    Title: 14 px
    Label: 21 px
37. 37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 52 px tall
    Cancel button: 56 px tall
    Save button: 48 px tall
    Send button: 40 px tall
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Label: 28 px
    Caption: 9 px (a) Caption (b) Footer (c) Label
39. 39.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
40. 40.Which of these fits saving in the cloud? (a) a draft you are typing (b) your last game level (c) photos on two devices (d) notes to read offline

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