Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallAnswer key: 1-b, 2-d, 3-d, 4-c and 5-b. This Week 184 quiz connects five current-affairs topics with the underlying concepts UPSC CSE Prelims candidates must retain: lithium-ion battery safety, the Indian Navy’s Mahe-class anti-submarine craft, lung-cancer classification, NASA’s Perseverance mission and India’s National Quantum Mission.
Quick answer key
| Question | Correct option | Core idea |
|---|---|---|
| 1 | (b) | Both statements are correct, but statement 2 does not explain statement 1. |
| 2 | (d) | All three statements about INS Mangrol are correct. |
| 3 | (d) | Adenocarcinoma is a non-small-cell lung cancer. |
| 4 | (c) | All three statements about Perseverance are correct. |
| 5 | (b) | Statements 1 and 3 are correct; statement 2 is incorrect. |
1. Lithium-ion batteries in power banks
Question
Consider the following statements:
- Lithium-ion batteries have high energy density, which can make overheating and combustion more severe under certain conditions.
- Counterfeit, low-quality or recycled cells can introduce manufacturing defects and fire hazards.
Which of the following is correct?
- (a) Both statements are correct, and statement 2 is the correct explanation of statement 1.
- (b) Both statements are correct, but statement 2 is not the correct explanation of statement 1.
- (c) Statement 1 is correct, but statement 2 is incorrect.
- (d) Statement 1 is incorrect, but statement 2 is correct.
Answer: (b)
Both statements identify real but distinct issues. High energy density is an inherent property of lithium-ion chemistry. As IIT Bombay professor Sagar Mitra put it, “these batteries are highly energy-dense and therefore vulnerable to overheating and combustion under certain conditions.” A defective or counterfeit cell adds a separate pathway to failure through poor materials, damaged separators, inadequate protection circuits or inconsistent manufacturing; it does not explain why energy-dense lithium-ion cells require careful thermal and electrical control in the first place.
As an Amazon Associate I earn from qualifying purchases.
The safety issue entered current affairs after an October 11, 2026 incident in which a power bank caught fire on a Chennai-bound IndiGo flight that made an emergency landing at Hyderabad. Power banks commonly use lithium-cobalt-oxide or other lithium-ion cells. For consumers, certification, an undamaged casing, a reputable manufacturer and protection against overcharging or short circuits matter more than simply choosing the largest capacity printed on the package.
2. INS Mangrol and the Mahe-class programme
Question
Consider the following statements about INS Mangrol:
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
- It is an Anti-Submarine Warfare shallow-water craft.
- It is the third of eight indigenously designed and built Mahe-class vessels constructed by Cochin Shipyard Ltd at Kochi.
- It is named after Mangrol, a coastal town and prominent fishing harbour in Gujarat’s Junagadh district.
Which of the following is correct?
- (a) Only 1
- (b) Only 2 and 3
- (c) Only 1 and 2
- (d) 1, 2 and 3
Answer: (d)
All three statements are correct. The Indian Navy commissioned INS Mangrol at Mumbai’s Naval Dockyard on October 12, 2026. Its primary role is anti-submarine warfare in shallow waters, a mission that requires detecting and responding to submarines in coastal and confined environments rather than performing the same role as a general-purpose surface combatant.
Mangrol is the third vessel in an eight-ship, indigenous Mahe-class construction programme undertaken at Cochin Shipyard Ltd in Kochi. The name also preserves naval history: the present ship carries forward the legacy of the former INS Mangrol (M85), a minesweeper that served from 1983 to 2004. For revision, link the vessel’s identity to four facts—ASW role, Mahe class, third of eight ships and Gujarat’s Mangrol harbour.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
3. What adenocarcinoma means
Question
Adenocarcinoma, in the lung-cancer context, is best described as:
- (a) A cancer originating in bone or skeletal muscle
- (b) A form of small-cell lung cancer arising only in the central airways
- (c) A benign tumour of mucus-producing tissue
- (d) A non-small-cell lung cancer arising in cells lining airways or producing mucus
Answer: (d)
Adenocarcinoma is a type of non-small-cell lung cancer (NSCLC). It develops from glandular or mucus-producing cells, including cells lining parts of the airways. It must not be confused with squamous-cell carcinoma, another major NSCLC subtype, or with cancers that begin in bone or muscle.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
The term appeared in current-affairs coverage concerning Pope Leo XIV’s reported diagnosis. The word alone does not establish how advanced or dangerous an individual case is. Doctors assess tumour size and location, lymph-node involvement, spread to other organs and the biological characteristics of the cancer cells before determining stage and treatment.
4. NASA’s Perseverance rover
Question
Consider the following statements:
- Perseverance landed in Mars’ Jezero Crater on February 18, 2021.
- Its mission includes seeking signs of ancient life and collecting rock and regolith samples for possible return to Earth.
- While travelling towards the Idubi area near Jezero’s western rim, it set an off-world record for total distance driven by a vehicle on another world’s surface.
Which of the following is correct?
- (a) Only 1
- (b) Only 2
- (c) 1, 2 and 3
- (d) Only 1 and 3
Answer: (c)
All three statements are correct. Perseverance reached Jezero Crater on February 18, 2021. Jezero was selected because its ancient lake-and-delta geology offers places where evidence of past microbial life may be preserved. The rover studies rocks and regolith, caches or collects samples and supports the longer-term objective of bringing selected material to Earth for laboratory analysis, subject to a future sample-return effort.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
The reported driving record concerns cumulative distance travelled on the surface of another world, not speed or a single uninterrupted journey. The rover achieved it while heading toward the Idubi area near Jezero’s western rim, making the location and mission purpose useful clues when eliminating unrelated planetary-science statements.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →5. India’s National Quantum Mission
Question
Consider the following statements:
- The National Quantum Mission runs from 2023–24 to 2030–31 and has an approved investment of ₹6,003.65 crore.
- Its quantum-secure-communication target is a 5,000-kilometre network.
- The mission covers satellite-enabled links, inter-city quantum key distribution and multi-node networks using quantum memories, entanglement swapping and synchronised repeaters.
Which of the following is correct?
- (a) Only 1 and 2
- (b) Only 1 and 3
- (c) Only 2 and 3
- (d) 1, 2 and 3
Answer: (b)
Statements 1 and 3 are correct. The government-approved mission period is 2023–24 to 2030–31, with an investment of ₹6,003.65 crore. Its quantum-secure-communication goal is 2,000 kilometres—not 5,000 kilometres. A 1,000-kilometre milestone was reported as achieved within three years.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
The programme is broader than a single communications demonstration. It includes satellite-assisted links, inter-city quantum key distribution and multi-node quantum networks. Quantum memories can store quantum states, entanglement swapping can extend entanglement across network segments and synchronised repeaters are intended to support reliable long-distance operation. Other staged objectives cover intermediate-scale quantum computers, quantum sensing and clocks, and quantum materials and devices.
Quick Recap
How to revise these five questions
- Separate an intrinsic property from an added risk: energy density belongs to lithium-ion chemistry; counterfeit cells are a manufacturing and quality-control problem.
- For naval vessels, memorise role, class, construction sequence, commissioning date and naming lineage together.
- In medical terminology, identify the tissue of origin and the broad cancer category before considering prognosis.
- For planetary missions, pair the landing site and date with the scientific objective and the reported operational milestone.
- For government missions, retain the timeline, approved outlay, numerical target and technical components; one altered number can change the correct option.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
