App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 971 · 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), which part is at the very bottom?
   [ tab bar ]
   [ filter buttons ]
   [ title text ]
   [ big picture ]
   [ search box ] (a) tab bar (b) big picture (c) filter buttons (d) search box
2. 2.✏️ What is a wireframe? (a) a charging cable (b) the finished app (c) a simple screen sketch (d) a type of password
3. 3.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) type name and email (b) see the home screen (c) enter the code sent (d) make a password
4. 4.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 22 px
   Label: 24 px
   Caption: 13 px
   Footer: 18 px (a) Label (b) Footer (c) Caption (d) Body text
6. 6.💾 What does this code show? (Positions start at 0.)
   let notes = ["Music", "Sports", "Science", "Maths"];
   show(notes[1]); (a) Science (b) Sports (c) Maths (d) Music
7. 7.💾 What does this code show? (Positions start at 0.)
   let notes = ["Art", "Maths", "Hindi", "Science"];
   show(notes[3]); (a) Maths (b) Hindi (c) Science (d) Art
8. 8.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Cart → Shop → Address → Menu
   Design B: Home → Pens → Confirm → Offers (a) Design A (b) Design B
9. 9.Which of these is true of a final design? (a) is a quick sketch (b) has no real colours (c) has the real colours (d) shows where things go
10. 10.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
11. 11.True or false: icons with no meaning is poor button design. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) the font size (b) how users feel after (c) the button colours (d) the screen layout
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Label: 13 px
    Caption: 20 px
    Footer: 10 px
14. 14.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ Add button ]
    [ title text ]
    [ top bar ]
15. 15.Which of these is about UI (the look)? (a) how fast a task is done (b) how easy sign-up is (c) the screen layout (d) how many taps it takes
16. 16.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
17. 17.🔘 Our rule: buttons are at least 48 px tall. The Back button is 24 px tall. How many px taller must it be?
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Search
    Design B: Home → Cart → Pens → Offers → Search → Results → Confirm (a) Design A (b) Design B
19. 19.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
20. 20.Which of these fits saving in the cloud? (a) your last game level (b) photos on two devices (c) the sound on/off setting (d) a draft you are typing
21. 21.💾 Which can hold many values in order? (a) a switch (b) a single number (c) a list (d) a button
22. 22.Which colour pair is easy to read? (a) pale pink on white (b) red on green (c) white on black (d) yellow on white
23. 23.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
24. 24.🔢 In a quiz-app flow, which comes LAST? (a) read a question (b) tap “Start quiz” (c) see the final score (d) see if it is right
25. 25.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.🖼️ How many parts (boxes) does this wireframe have?
    [ top bar ]
    [ big picture ]
    [ Add button ]
    [ Save button ]
27. 27.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
28. 28.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) colour as the only clue
29. 29.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 64 px tall
    Next button: 48 px tall
    Save button: 48 px tall
    Help button: 28 px tall (a) Save (b) Next (c) Done (d) Help
30. 30.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
31. 31.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) post the photo (c) take the photo (d) open the camera screen
32. 32.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
33. 33.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 2 (c) 1 (d) 0
34. 34.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Pens → Address
    Design B: Home → Offers → Pens → Address → Item
35. 35.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Footer: 12 px
    Label: 17 px
    Menu: 19 px
    Title: 18 px
37. 37.True or false: how users feel after is about UX (the experience). (a) True (b) False
38. 38.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
39. 39.True or false: a final design shows the real fonts. (a) True (b) False
40. 40.Which colour pair is easy to read? (a) pale pink on white (b) dark blue on black (c) dark blue on white (d) yellow on white

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