Laptops questions and answers
Laptop parts, batteries, thermals, ports, upgrades and maintenance.
These are practice variations, many generated from templates and numeric inputs, not an official question bank. They remain outside search indexing until at least 100 independently reviewed questions across five chapters are available.
Questions and clear answers
01Cooling · foundation · Editorial previewWhy must laptop vents stay clear?+
Blocked vents can cause higher temperatures, louder fans and reduced performance from thermal throttling.
02Ports · foundation · Editorial previewDoes every USB-C port support video output?+
No. USB-C names the connector; charging, data speed and video capabilities depend on hardware support.
03Upgrades · foundation · Editorial previewWhat should you check before upgrading RAM?+
Verify memory is replaceable and check the supported generation, module size and maximum capacity.
04Storage · foundation · Editorial previewWhy are SSDs useful in portable laptops?+
SSDs generally provide fast access and avoid the mechanical spinning disks used in hard drives.
05Battery runtime · advanced · Editorial previewIn laptops — Battery runtime: A device starts at 42% charge, consumes 18 percentage points/hour, and is used for 4 minutes. What percentage is left under a linear model?+
Battery remaining = max(0, 42 − 18 × 4/60) ≈ 40.8% (approximate linear assumption).
06Charging · foundation · Editorial previewIn laptops — Charging: A controller gains 2 percentage points of charge every 11 minutes. How long to gain 6 percentage points?+
Three charging intervals take 33 minutes in this simplified constant-rate example.
07RAM upgrades · foundation · Editorial previewIn laptops — RAM upgrades: A laptop named Model-3500 uses DDR4-only memory slots. Can a DDR5 module be inserted as a compatible replacement?+
No. DDR4 and DDR5 have different physical and electrical specifications; inspect the exact device's supported memory before upgrading.
08Storage capacity · intermediate · Editorial previewIn laptops — Storage capacity: A storage capacity activity has 4299 files using 16 MB each and 15 MB of extra files. Find total storage.+
Total = 4299 × 16 + 15 = 68799 MB, before filesystem overhead.
09Thermal management · foundation · Editorial previewIn laptops — Thermal management: A laptop becomes hotter during a 99-minute workload while resting on a thick blanket. What should change first?+
Move it to a flat ventilated surface and clear vents; blocked airflow can raise temperatures and reduce performance.
10Display resolution · advanced · Editorial previewIn laptops — Display resolution: A screen or image is 59640 px wide and 70 px high. How many pixels does it contain?+
Pixels = 59640 × 70 = 4174800.
11External ports · intermediate · Editorial previewIn laptops — External ports: A USB-C laptop port is labeled only 'USB-C' on model Test-1697. Can you infer it supports video output?+
No. USB-C defines a connector shape; video, charging and speed capabilities depend on the device's specifications.
12Wi-Fi speed · foundation · Editorial previewIn laptops — Wi-Fi speed: A wi-fi speed transfer sends 19968 megabits at a steady 21 megabits/second. Find ideal transfer time.+
Time = size/rate = 19968/21 ≈ 950.86 seconds, ignoring protocol overhead.
13Backups · foundation · Editorial previewIn laptops — Backups: A backup plan covers 3295 GB and a verified copy stores 5 GB. How much has not yet been copied?+
Uncopied amount = 3295 − 5 = 3290 GB (assuming the same units and no duplicate data).
14Performance · intermediate · Editorial previewIn laptops — Performance: A workload performs 4094 independent tasks, each taking 12 seconds sequentially. How many seconds in total?+
Sequential time = 4094 × 12 = 49128 seconds (parallelism not assumed).
15Battery care · advanced · Editorial previewIn laptops — Battery care: An email asks the owner of device 4893 to install a 'security fix' from an unknown link. What should they do?+
Do not install it. Verify updates through the official vendor or operating system, and independently check the sender and domain.
16Power use · foundation · Editorial previewIn laptops — Power use: A device draws 3 watts for 13 hours. How much energy is used in Wh?+
Energy = power × time = 3 × 13 = 39 Wh.
17Battery runtime · intermediate · Editorial previewIn laptops — Battery runtime: A device starts at 68% charge, consumes 10 percentage points/hour, and is used for 3 minutes. What percentage is left under a linear model?+
Battery remaining = max(0, 68 − 10 × 3/60) ≈ 67.5% (approximate linear assumption).
18Charging · foundation · Editorial previewIn laptops — Charging: A controller gains 17 percentage points of charge every 10 minutes. How long to gain 51 percentage points?+
Three charging intervals take 30 minutes in this simplified constant-rate example.
This is an educational practice preview. Answers and board-specific alignment are undergoing editorial review; these are not official exam questions.