Important Questions: My Brother's Great Invention | English Poorvi Class 7 - New NCERT PDF Download

Q.1. What set off Anand’s burglar alarm when Anita and Anand’s father came home?
A. A loud push
B. Opening the door gently
C. Stepping on a wire
D. Ringing a bell
Ans: B. Opening the door gently
The alarm was designed to trigger when the door was opened softly, which their father did.

Q.2. Who shared the details of Anand’s inventions?
A. Ma
B. Anita and Anand’s father
C. Anita
D. Dr. Mohan
Ans: C. Anita
 Anita introduces herself as the one describing Anand’s actions.

Q.3. Which film encouraged Anand to build a time machine?
A. Future World
B. Back to the Future
C. Time Traveler
D. Space Mission
Ans: B. Back to the Future
Watching this movie inspired Anand’s time machine project.

Q.4. What items did Anand use to create his time machine?
A. Paper and string
B. Wires, springs, levers, and bulbs
C. Cloth and glue
D. Wood and screws
Ans: B. Wires, springs, levers, and bulbs
 Anand’s room was filled with these materials for the time machine.

Q.5. What did Anita and Anand’s father do with his tool box after the burglar alarm incident?
A. Left it open
B. Locked it and hid the key
C. Gave it to Anita
D. Stored it away
Ans: B. Locked it and hid the key
Their father secured the tool box to stop Anand’s experiments.

Q.6. What noises did Anita hear at the front door at night?
A. A loud knock
B. A scratching and click
C. A bell ringing
D. A creak
Ans: B. A scratching and click
These sounds indicated someone trying to enter the house.

Q.7. Who appeared when the front door opened at night?
A. Mrs. Sharma
B. Boppa
C. Anita and Anand’s father
D. Dr. Mohan
Ans: B. Boppa
Boppa, the thief, entered the house at night.

Q.8. Where did Anand send Boppa instead of his father’s room?
A. The kitchen
B. His own room
C. The garage
D. The living room
Ans: B. His own room
Anand misled Boppa to his room with the time machine.

Q.9. What was found near the time machine’s control panel after Boppa vanished?
A. A cudgel
B. A green scarf
C. A wire
D. A bulb
Ans: B. A green scarf
 Boppa’s scarf was left near the machine’s switches.

Q.10. What happened to Anand’s time machine after Boppa’s disappearance?
A. It was repaired
B. It was dismantled
C. It was tested again
D. It was kept running
Ans: B. It was dismantled
 Their father took apart the machine, considering it unsafe.

Q.11. Why did Anand decide to make a burglar alarm for their home?
Ans: Anand decided to make a burglar alarm because there had been a recent increase in thefts in their neighborhood, prompting him to create a device to protect their house from potential intruders breaking in, ensuring their family’s safety.

Q.12. What did Anita warn Anand about before he started his burglar alarm project?
Ans: Anita warned Anand that if his burglar alarm project led to trouble or a scolding from their parents for the mess or its failure, he should not mention her name or involve her in any way, as she wanted to avoid being blamed for his actions.

Q.13. How did their mother react when she saw Anita and Anand’s father wet from the burglar alarm?
Ans: Their Mother hurriedly ran to the front doorstep to investigate the loud noise and saw Anita and Anand’s father standing there, completely soaked and angry, so she spoke to him in a gentle, soothing voice to help him calm down and feel less upset.

Q.14. What sounds were heard from Anand’s room when Boppa went inside?
Ans: When Boppa entered Anand’s room, there was a loud crash followed by a scream, then muffled thumping noises, an eerie whining sound, and a low, continuous humming noise coming from the time machine, creating a chaotic and startling atmosphere.

Q.15. What did Anand claim happened to Boppa after the time machine incident?
Ans: Anand confidently claimed that his time machine had successfully worked and trAnsorted Boppa, the intruder, into the past, which is why Boppa was no longer found anywhere in the house after the incident occurred, leaving only his scarf behind.

Q.16. How was Anand’s burglar alarm supposed to work, and why did it upset their father?
Ans: Anand’s burglar alarm was carefully designed to detect a thief by triggering a loud clanging sound and dropping a water bag onto the person’s head when the front door was opened gently, as Anand believed a thief would open the door quietly to avoid being noticed. This upset Anita and Anand’s father because he always opened the door softly when he returned home, which activated the alarm, causing the water bag to fall on him, soaking him completely and making him extremely angry and frustrated with Anand’s invention, as he felt embarrassed and annoyed.

Q.17. How did Anita show her doubts about Anand’s burglar alarm, and what steps did she take to avoid trouble?
Ans: Anita showed her doubts by questioning Anand about how his burglar alarm could distinguish between a burglar and someone else opening the door, indicating she was skeptical about its ability to work correctly and effectively without causing problems. To avoid trouble, she firmly told Anand that if he got scolded by their parents for the alarm’s failure or the mess he created, he should not mention her involvement, and she also instructed him to clean up all the wires, tools, and materials he used before Ma or their father returned home, ensuring she wouldn’t be blamed for his actions.

Q.18. How did Anand’s behavior change while working on his time machine? Use examples.
Ans: Anand became extremely focused and untidy while working on his time machine, ignoring everything else for two weeks as he immersed himself in his project. He turned his room into a chaotic workshop filled with wires, springs, levers, and bulbs, creating constant loud noises from hammering, sawing, and clattering as he built a large control switchboard. He neglected his appearance, not bothering to comb his hair when Ma wasn’t watching, and looked wild, like a savage, showing how deeply engrossed he was in his invention, prioritizing it over personal care and household rules.

Q.19. How did Anita and Anand handle the situation when Boppa entered their house at night? 
Ans: Anita and Anand were terrified when they heard scratching and clicking noises at the door, and Anita quickly woke Anand to tell him someone was trying to break into the house. When Boppa entered with an evil grin and a cudgel, they were scared, but Anand showed quick thinking by telling Boppa that their father’s room was next to theirs, cleverly leading him to the time machine room instead to buy time. They then shouted loudly for help, which alerted their neighbors, Mrs. Sharma, her husband, and Dr. Mohan, who rushed to the house to rescue them from the dangerous intruder, ensuring their safety.

Q.20. Why did Mr. Sharma not believe Anand’s claim about the time machine, and what was done with it afterward?
Ans: Mr. Sharma did not believe Anand’s claim that Boppa had been trAnsorted into the past by the time machine because he thought it was just Anand’s vivid imagination, as they found no trace of Boppa except his green scarf near the machine’s control panel, and he believed it was impossible for a child’s machine to work that way. After the incident, Anita and Anand’s father decided to dismantle the time machine completely, considering it unsafe for the house and possibly having a slight suspicion that it might have worked, to prevent any further risky experiments by Anand and ensure the family’s safety.