App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 475 · 40 questions

Developer's tip (Name the topic): First decide which topic the question is about. Use that lesson’s rule: count, order, match or work it out. Read every line of a screen or a code snippet before you answer.

1. 1.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 39; // typed by the user
   line 2: let friends = 3; // typed by the user
   line 3: let share = bill / friends;
   line 4: show(share); (a) line 1 (b) line 4 (c) line 3 (d) line 2
2. 2.📅 An app team plans for 3 days, builds for 6 days, tests for 1 days and releases on 1 more day. How many days does the whole project take?
3. 3.🛠️ At which stage do you draw the user flow? (a) the idea stage (b) the release stage (c) the test stage (d) the plan stage
4. 4.🧩 What do we call one full page of an app? (a) a variable (b) a cable (c) a screen (d) a battery
5. 5.True or false: you talk to possible users at the test stage. (a) True (b) False
6. 6.👥 A clinic app has 75 patients, 250 doctors and 300 nurses as users. Which user group is the biggest? (a) doctors (b) patients (c) nurses
7. 7.🔍 Which is the odd one out? (a) a flashcard trainer (b) a times-table quiz (c) a word battle (d) a spelling coach
8. 8.Which of these is an input? (a) a result on screen (b) checking a password (c) adding up a bill (d) speaking a command
9. 9.📊 Survey: which problem bugs you most? How many students voted in all?
   wasting pocket money: 19 votes
   forgetting homework: 3 votes
   no quiet study place: 21 votes
10. 10.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) pick your bus stop (b) rate the driver (c) see where the bus is (d) show arrival time
11. 11.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) show the balance (c) add money received (d) savings stickers
12. 12.👥 A clinic app has 160 patients, 175 doctors and 295 nurses as users. How many more nurses than patients are there?
13. 13.Which of these app ideas solves no real problem? (a) a page of random dots (b) a free study-room finder (c) a library due-date alert (d) a medicine reminder
14. 14.True or false: a cricket run chase is a game. (a) False (b) True
15. 15.📴 Which of these can often still work with no internet? (a) an installed app (b) an online search (c) a video call (d) a new website
16. 16.📱 Which one is installed on a phone: an app or a website? (a) a website (b) an app
17. 17.👥 A library app has 280 readers, 85 librarians and 25 volunteers as users. How many more readers than volunteers are there?
18. 18.🎯 Why learn about users before you build? (a) to build what they need (b) to pick a logo (c) to make it longer (d) to slow it down
19. 19.💡 Which app idea solves this problem: students cannot find a quiet room? (a) a medicine reminder (b) a study-room finder (c) a bill splitter (d) a lost-and-found board
20. 20.⚙️ What number does this app show?
    let price = 65; // typed by the user
    let qty = 6; // typed by the user
    let total = price * qty;
    show(total);
21. 21.🔍 Which is the odd one out? (a) write down the bugs (b) try every button (c) connect the data (d) let friends try it
22. 22.📊 Survey: which problem bugs you most? How many more votes did “forgetting homework” get than “forgetting birthdays”?
    forgetting homework: 14 votes
    forgetting birthdays: 8 votes
    no quiet study place: 10 votes
23. 23.🎯 What is the best first step to learn what users need? (a) ask and watch users (b) write the code (c) guess on your own (d) pick the colours
24. 24.💡 Does an app idea like a page of random dots solve a real problem? (a) Yes (b) No
25. 25.🗒️ Version 1 of a bus tracker must be ready in 12 days. How many days are left for extras after the must-haves?
    see where the bus is: 4 days
    show arrival time: 4 days
    pick your bus stop: 2 days
26. 26.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Order Snacks
    [slider] Volume
    [text box] Age
    [button] Save
    [button] Send
27. 27.🗒️ Version 1 of a pocket-money tracker must be ready in 18 days. How many days are left for extras after the must-haves?
    add money received: 4 days
    add money spent: 4 days
    show the balance: 5 days
28. 28.⚙️ What number does this app show?
    let price = 500; // typed by the user
    let off = 10; // typed by the user
    let pay = price - off;
    show(pay);
29. 29.⚙️ In an app, is a beep sound an input, processing or an output? (a) processing (b) input (c) output
30. 30.🛠️ At which stage do you talk to possible users? (a) the build stage (b) the test stage (c) the idea stage (d) the plan stage
31. 31.True or false: the game-over page is a screen. (a) True (b) False
32. 32.🧩 How many buttons does this app screen have?
    [title] Settings
    [slider] Volume
    [button] Cancel
    [button] Save
    [text box] Due date
    [switch] Remind me
    [text box] Notes
    [text box] Age
33. 33.True or false: a puzzle with levels is a game. (a) True (b) False
34. 34.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) rate the driver (b) see where the bus is (c) a dark mode (d) change the bus icon
35. 35.Which of these is an output? (a) sorting the scores (b) checking a password (c) typing your age (d) a pop-up message
36. 36.🧩 Which input is best for choosing a volume level? (a) a title (b) a switch (c) a slider (d) a text box
37. 37.📅 An app team plans for 4 days, builds for 7 days, tests for 2 days and releases on 1 more day. How many days does the whole project take?
38. 38.🔍 Which is the odd one out? (a) a puzzle with levels (b) a racing challenge (c) a cricket run chase (d) a step counter
39. 39.💡 After a survey, which need should version 1 solve? (a) the rarest need (b) a random need (c) the most common need (d) the newest trend
40. 40.⚙️ What number does this app show?
    let price = 95; // typed by the user
    let qty = 2; // typed by the user
    let total = price * qty;
    show(total);

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