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
- 1.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) tap “Sign up” (c) enter the code sent (d) make a password
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2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Score card”
2. tap the Search tab
3. tap the Home tab
4. open “Match report”
How many times must you tap Back to reach the main screen of this tab? - 3.🔢 In a food-order flow, which comes FIRST? (a) track the order (b) pay for the order (c) open the menu (d) check the cart
- 4.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) nowhere (c) inside a button (d) at the bottom
- 5.Which of these is true of a final design? (a) has no real colours (b) has the real colours (c) uses plain grey boxes (d) is a quick sketch
- 6.🔢 In a food-order flow, which comes LAST? (a) track the order (b) add it to the cart (c) check the cart (d) pay for the order
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7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Start button: 60 px tall
Back button: 44 px tall
Cancel button: 44 px tall -
8.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Shop → Offers
Design B: Home → Results → Address → Offers → Search → Shop (a) Design B (b) Design A - 9.True or false: whether users get lost is about UX (the experience). (a) True (b) False
- 10.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
- 11.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) open the app (b) type name and email (c) tap “Sign up” (d) see the home screen
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12.💾 What number does this code show?
let notes = ["Science", "Hindi"];
notes.push("Sports");
notes.push("Maths");
show(notes.length); - 13.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
- 14.🔘 Our rule: buttons are at least 48 px tall. The Done button is 44 px tall. How many px taller must it be?
- 15.Which colour pair is easy to read? (a) white on black (b) light grey on white (c) dark blue on black (d) pale pink on white
- 16.🎨 Is this about UI or UX: how many taps it takes? (a) UX (b) UI
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17.🖼️ In this wireframe (top to bottom), what is right below the title text?
[ tab bar ]
[ title text ]
[ search box ]
[ big picture ] (a) tab bar (b) search box (c) big picture - 18.True or false: how easy sign-up is is about UI (the look). (a) False (b) True
- 19.🎨 Is this about UI or UX: how users feel after? (a) UI (b) UX
- 20.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
- 21.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) has no real colours (d) uses the final pictures
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22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Score card”
2. open “Friend list”
3. open “Match report”
4. tap the Search tab
5. tap the Profile tab
How many times must you tap Back to reach the main screen of this tab? - 23.Which of these is about UI (the look)? (a) how many taps it takes (b) how easy sign-up is (c) the icon shapes (d) how users feel after
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24.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Next button: 32 px tall
Done button: 36 px tall
Cancel button: 36 px tall
Send button: 48 px tall - 25.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) in the cloud (b) on the phone
- 26.Which of these is true of a wireframe? (a) looks like the real app (b) uses the final pictures (c) shows where things go (d) shows the real fonts
- 27.🧭 Which part of navigation undoes one move? (a) the back button (b) a menu button (c) a tab bar
- 28.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) undoes one move (c) goes to the last screen (d) hides extra links
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29.🖼️ How many parts (boxes) does this wireframe have?
[ list of items ]
[ top bar ]
[ Save button ]
[ filter buttons ]
[ title text ]
[ search box ] - 30.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
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31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Hint: 14 px
Body text: 21 px
Title: 15 px - 32.True or false: a tiny 20 px button is poor button design. (a) True (b) False
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33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Hint: 18 px
Body text: 18 px
Title: 24 px
Footer: 23 px -
34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Menu: 23 px
Label: 26 px
Body text: 23 px
Hint: 10 px (a) Label (b) Menu (c) Body text (d) Hint - 35.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
- 36.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) more colours (c) a bigger app (d) better UX
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37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
Send button: 56 px tall
Start button: 52 px tall
Done button: 40 px tall (a) Send (b) Done (c) Start - 38.🔍 Which is the odd one out? (a) how fast a task is done (b) how easy sign-up is (c) the theme colours (d) how users feel after
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39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
Design A: Home → Pay → Search → Offers → Size → Menu → Shop
Design B: Home → Address → Shop → Results - 40.🔘 Our rule: buttons are at least 48 px tall. The Back button is 44 px tall. How many px taller must it be?
Answer key
- see the home screen
- 1
- open the menu
- at the bottom
- has the real colours
- track the order
- 1
- Design A
- True
- a wireframe
- see the home screen
- 4
- True
- 4
- white on black
- UX
- search box
- False
- UX
- False
- has no real colours
- 0
- the icon shapes
- 1
- on the phone
- shows where things go
- the back button
- shows 3 to 5 icons
- 6
- easy to read
- 2
- True
- 0
- Hint
- a tab bar
- better UX
- Done
- the theme colours
- 3
- 4
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students