App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 15 · 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.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Item → Results → Cart → Confirm → Offers → Size
   Design B: Home → Menu → Address (a) Design B (b) Design A
2. 2.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) delete this (c) a picture goes here (d) a closed app
3. 3.💾 pop() takes off the last item. What does this code show?
   let friends = ["Aman", "Zoya", "Meera", "Kabir"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Aman (b) Meera (c) Zoya (d) Kabir
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Pens → Item
   Design B: Home → Results → Size → Pens → Menu → Pay
5. 5.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
6. 6.Which of these is true of a tab bar? (a) hides extra links (b) shows 3 to 5 icons (c) goes to the last screen (d) opens a list of pages
7. 7.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
8. 8.Which of these is true of a wireframe? (a) looks like the real app (b) has no real colours (c) shows the real fonts (d) uses the final pictures
9. 9.🔀 Why plan the user flow before building? (a) so each step is clear (b) to skip testing (c) to add more taps (d) to hide the buttons
10. 10.🔘 Our rule: buttons are at least 48 px tall. The Next button is 24 px tall. How many px taller must it be?
11. 11.🔢 In a quiz-app flow, which comes first: “see if it is right” or “see the final score”? (a) see if it is right (b) see the final score
12. 12.💾 In most code, the first item of a list is at position ___. (a) 1 (b) 0 (c) 2 (d) 10
13. 13.🔘 Our rule: buttons are at least 48 px tall. The Done button is 28 px tall. How many px taller must it be?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Body text: 24 px
    Caption: 24 px (a) Caption (b) Footer (c) Body text
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Done button: 36 px tall
    Send button: 64 px tall (a) Help (b) Done (c) Send
16. 16.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
17. 17.True or false: the icon shapes is about UI (the look). (a) True (b) False
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Pay
    Design B: Home → Menu → Cart → Pens → Offers (a) Design B (b) Design A
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Menu
    Design B: Home → Address → Search → Pay → Cart
20. 20.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
21. 21.🔢 In a sign-up flow, what comes right after “open the app”? (a) tap “Sign up” (b) type name and email (c) see the home screen (d) enter the code sent
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Help page”
    3. open “Friend list”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 60 px tall
    Cancel button: 44 px tall
    Save button: 56 px tall (a) Help (b) Save (c) Cancel
24. 24.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
25. 25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. open “Friend list”
    4. tap Back
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
26. 26.🔢 In a food-order flow, which comes first: “check the cart” or “open the menu”? (a) open the menu (b) check the cart
27. 27.✏️ Why draw a wireframe before coding? (a) it adds colours (b) it saves data (c) it runs the app (d) changes are quick
28. 28.Which of these is about UX (the experience)? (a) the icon shapes (b) the font size (c) the screen layout (d) how many taps it takes
29. 29.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “read a question”? (a) tap “Start quiz” (b) read a question
30. 30.🔀 What is a user flow? (a) a colour theme (b) the path through screens (c) a charging cable (d) a type of font
31. 31.🧭 About how many tabs suit a tab bar best? (a) 20 (b) 3 to 5 (c) 10 to 12 (d) 1
32. 32.True or false: buttons almost touching is poor button design. (a) True (b) False
33. 33.🎨 Who should you test the UX with? (a) only yourself (b) real users (c) nobody (d) the app icon
34. 34.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
35. 35.💾 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
36. 36.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
37. 37.True or false: a class leaderboard fits saving in the cloud. (a) False (b) True
38. 38.Which of these fits saving in the cloud? (a) notes to read offline (b) a draft you are typing (c) the sound on/off setting (d) a shared to-do list
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) big touch targets (d) labels on every icon
40. 40.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True

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