App Dev Worksheet: Part 2 Test
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.
NameDateTime takenScore ___ / 40
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1.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Score card”
2. open “Video”
3. open “Score card”
4. open “Map”
How many times must you tap Back to reach the main screen of this tab? - 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
- 3.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
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4.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
[ filter buttons ]
[ Add button ]
[ search box ]
[ big picture ] (a) big picture (b) filter buttons (c) search box (d) Add button - 5.True or false: a final design uses plain grey boxes. (a) True (b) False
- 6.🔢 In a quiz-app flow, which comes first: “read a question” or “pick an answer”? (a) read a question (b) pick an answer
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7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Score card”
2. open “Score card”
3. open “Video”
Which screen are you on now? (a) Score card (b) Lessons (c) Video (d) Quiz - 8.True or false: the button colours is about UI (the look). (a) False (b) True
- 9.True or false: a wireframe uses the final pictures. (a) False (b) True
- 10.🧭 Why should every screen show where you are? (a) to use more battery (b) so users do not get lost (c) to look busy (d) to hide the menu
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11.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Start button: 52 px tall
Save button: 56 px tall
Done button: 48 px tall - 12.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
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13.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. tap the Home tab
2. tap the Search tab
3. open “Badges”
4. tap Back
5. open “Score card”
Which screen are you on now? (a) Score card (b) Search (c) Home (d) Badges - 14.Which of these is about UX (the experience)? (a) the font size (b) the button colours (c) the screen layout (d) how fast a task is done
- 15.🔀 A screen with no way forward or back is called a ___. (a) dead end (b) home screen (c) shortcut (d) tab bar
- 16.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) better UX (d) worse UX
- 17.🎨 UI stands for user ___. (a) idea (b) input (c) interface (d) internet
- 18.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 1 (c) 0 (d) 2
- 19.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
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20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Badges”
2. open “Friend list”
3. open “Edit photo”
4. tap Back
How many times must you tap Back to reach the main screen of this tab? - 21.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
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22.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Menu → Confirm → Search → Size → Address
Design B: Home → Shop → Search → Address → Results → Size → Menu (a) Design B (b) Design A - 23.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
- 24.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a draft you are typing (c) a shared to-do list (d) notes to read offline
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25.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Match report”
2. tap the Lessons tab
3. open “Match report”
4. tap Back
How many times must you tap Back to reach the main screen of this tab? -
26.🖼️ How many parts (boxes) does this wireframe have?
[ top bar ]
[ Save button ]
[ search box ]
[ menu icon ]
[ Add button ] -
27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Footer: 23 px
Menu: 16 px
Hint: 12 px
Label: 15 px - 28.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
- 29.Which of these is true of a tab bar? (a) goes to the last screen (b) switches main sections (c) opens a list of pages (d) hides extra links
- 30.💾 Saving data in the cloud lets you ___. (a) never need a password (b) skip the internet (c) use it on any device (d) shrink the app
- 31.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) open the menu (c) pick a dish (d) add it to the cart
- 32.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
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33.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
Design A: Home → Size → Pay
Design B: Home → Offers → Shop → Menu - 34.💾 Which works with no internet at all? (a) a cloud leaderboard (b) a cloud backup (c) a shared chat (d) data saved on the phone
- 35.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
- 36.🎨 UX stands for user ___. (a) express (b) example (c) experience (d) extra
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37.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
[ tab bar ]
[ filter buttons ]
[ top bar ]
[ menu icon ] (a) menu icon (b) filter buttons (c) top bar -
38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Item → Menu
Design B: Home → Confirm → Results → Search → Pens → Offers → Item (a) Design A (b) Design B - 39.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
- 40.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) a charging cable (d) the path through screens
Answer key
- 4
- makes it harder
- 4
- big picture
- False
- read a question
- Video
- True
- False
- so users do not get lost
- 3
- the back button
- Score card
- how fast a task is done
- dead end
- better UX
- interface
- 0
- UX
- 2
- True
- Design A
- makes it harder
- a shared to-do list
- 0
- 5
- 2
- makes it harder
- switches main sections
- use it on any device
- open the menu
- helps everyone
- 2
- data saved on the phone
- so anyone can follow
- experience
- filter buttons
- Design A
- a wireframe
- the path through screens
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students