JKSSB Laboratory Attendant 2026 Previous Year Questions

To find the cost price of each article, we can break the problem down by looking at how the total profit percentage relates to the individual sales.

To find the value of X, we can use the definitions of the Arithmetic Mean (average) and the Geometric Mean.

To find the total sum of money, we can look at the basic difference between simple interest and compound interest over a two-year period.

Step 1: Calculate the Total Cost Price

To find the diameter of the sphere, we can look at the total volume of the metal being melted and recast. When the two cones are melted together, their combined volume is exactly equal to the volume of the new sphere.

My apologies! Let's re-solve this completely using only plain words and standard numbers.

We can find the lowest possible value of this expression by reorganizing it into perfect squares. In the world of real numbers, any number multiplied by itself (squared) can never be negative; the absolute smallest value a squared group can ever have is zero.

Imagine a solid wooden hemisphere, which looks like a bowl turned upside down.

To find out which statement is true, we can compare the two main expressions by squaring them. Squaring positive numbers lets us compare their sizes easily without changing which one is bigger.

To find out which statement is true, we can compare the two main expressions by squaring them. Squaring positive numbers lets us compare their sizes easily without changing which one is bigger.

Breaking Down the Logic

1. Find the total distance to cover

Step-by-Step Explanation:

To find the average speed when the distance traveled going and returning is exactly the same, you cannot simply find the standard average of the two speeds. Instead, you follow a specific method: you multiply two by the first speed, multiply that by the second speed, and then divide that entire total by the sum of the two speeds combined.

The correct answer is option B.

When a standard six-sided die is thrown, there are six possible outcomes in total: one, two, three, four, five, and six.

Step-by-Step Breakdown:

Step-by-Step Breakdown:

Step-by-Step Breakdown:

Step-by-Step Breakdown:

Step-by-Step Breakdown:

Step-by-step Breakdown:

Step-by-Step Breakdown:

To find the probability of drawing a perfect square, we can look at the total number of cards and the number of perfect squares within that range.

Step-by-step Breakdown:

Here is why:

The correct spelling is Conflagration (without the extra 'a' after the 'g'). A conflagration is a large, destructive fire.

Here is why:

Here is why:

Colloquial (spelled with a double 'l' and ending in '-ial') describes words or phrases used in casual, everyday conversation rather than formal speech or writing.

The Reason

Here is why this is the most grammatically accurate indirect form:

Here is why, along with the meanings of the other options:

Here is why:

Here is why this is the correct transformation based on standard grammar rules:

Here is why this sequence forms the most logical paragraph:

Here is how the sentence flows together logically when rearranged:

Here is a quick breakdown of why:

Here is why:

Why this is correct:

Why this is correct:

The Reason

All statements provided accurately describe the MUMKIN scheme.The "Mumkin - Livelihood Generation Scheme" falls under the Mission Youth, a J&K government initiative that:Empowers unemployed youth.Provides a subsidy of up to Rs. 80,000 or 10% of the on-road price of the vehicle, whichever is lower.Restricts eligibility to applicants between the ages of 18 and 35 years.

Assertion (A) is false: A rise in per capita Gross National Product (GNP) does not always reflect an improvement in living standards. Per capita GNP is simply an average (Total GNP divided by Total Population). It fails to account for income inequality. If the economic growth is concentrated entirely in the hands of the top 1% of the population, the per capita GNP will rise, but the living standards of the general public will remain stagnant or even worsen. It also ignores environmental degradation, health, and education quality.

Analysis of Statements: 

Why Statement I is correct (and II is incorrect):

Why Statements I and II are correct (and III is incorrect):

Why All Statements Are Correct:

Explanation of the Statements Statement I is CORRECT: The Axiom Mission 4 (Ax-4), launched in June 2025, carried a diverse international crew including Group Captain Shubhanshu Shukla from India, Sławosz Uznański-Wiśniewski from Poland, and Tibor Kapu from Hungary. This mission marked the long-awaited return to human spaceflight for all three nations, representing their first government-sponsored flights in over 40 years (since the Soviet-era Interkosmos missions). Statement II is INCORRECT: While ISRO's SpaDeX (Space Docking Experiment) mission in January 2025 was a massive historical success, it did not make India the first country to achieve satellite docking. India became the fourth nation in the world to successfully master and execute autonomous space docking technology, joining an elite group alongside the USA, Russia, and China.  

Detailed Breakdown of the Statements:

Detailed Breakdown of the Matches:

Explanation of the Statements: 

Why this is correct:

A Master template system (often referred to simply as templates, themes, or slide masters depending on the software) is a blueprint that defines the foundational layout, typography, color palette, and design elements of a document or presentation. When you apply or change a master template, those styles are automatically inherited across all existing and newly created pages or slides, ensuring visual consistency.

Aditi's logic is actually correct, but Excel will throw a formula error because her syntax is completely broken.

Editing the Slide Master (or Master Slide) applies changes globally, automatically placing the logo in the exact same position on all current and future slides without manual replication

How it works step-by-step:

Why this is correct:

Why this is correct:

Why this statement is NOT true:

Why this is the correct answer:

Why this is the correct answer:

Step-by-Step Breakdown:

Why this is the correct answer:

Why this is the correct answer:

Why this is the correct answer:

need to be checked 

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Here is why all three statements are correct:

The correct option is A) i-b, ii-a, iii-c, iv-d (with a small caveat regarding fragmentation/spores, as explained below).Here is how the categories of reproduction match with the examples:i. Vegetative propagation $\rightarrow$ b. Begonia and BryophyllumBryophyllum and Begonia reproduce vegetatively through their leaves, which develop buds that can grow into new plants.ii. Fragmentation $\rightarrow$ a. Mosses and liverwortsMosses and liverworts (bryophytes) commonly reproduce asexually via fragmentation, where a broken piece of the thallus or protonema grows into a new plant.iii. Budding $\rightarrow$ c. Yeast and HydraBoth yeast (a fungus) and Hydra (an animal) reproduce by developing a small bulb-like projection called a bud, which eventually detaches to become an independent organism.iv. Spore formation $\rightarrow$ d. Clostridium and BacillusClostridium and Bacillus are bacteria famous for forming highly resistant endospores to survive unfavorable conditions.

Explanation:

Here is why this match is correct and where the other ozone-depleting substances (ODS) actually come from:

Explanation:

Why "Glottis" is NOT related to the kidney:

(Note: Depending on the context of your test, B) Stomata is often considered the primary answer for leaves, but scientifically both Stomata and Lenticels act as gateways for gas exchange in plants).

Here is a quick look at why this term perfectly describes both organisms:

I. Highly Reactive Metals (Sodium, Potassium, Calcium, Magnesium, Aluminium)

C) Halide ores - Silver (Horn silver, AgCl)Why it's correct: Horn silver consists of silver and chlorine (a halogen). Because the dominant anion is a halide ($Cl^-$), it is correctly classified as a halide ore.Incorrect Pairs ExplainedA) Sulphate ores - Iron (Iron pyrites, $FeS_2$)Why it's incorrect: Iron pyrites ($FeS_2$) is a sulfide ore, not a sulfate ore. Sulfates contain the $SO_4^{2-}$ group, while pyrites contain sulfur directly bonded to iron as a sulfide.B) Oxide ores - Zinc (Hemimorphite, $2ZnO \cdot SiO_2 \cdot H_2O$)Why it's incorrect: Hemimorphite is primarily classified as a silicate ore because its chemical structure is built around silicon and oxygen ($SiO_4$ groups), rather than being a simple oxide.D) Silicate ores - Lead (Anglesite, $PbSO_4$)Why it's incorrect: Anglesite ($PbSO_4$) contains the sulfate group ($SO_4^{2-}$), making it a sulfate ore, not a silicate ore.

The Correct Reactivity Order (From Most Reactive to Least Reactive):

Explanation:

When calcium metal reacts with water, it undergoes a chemical reaction to produce calcium hydroxide and hydrogen gas.

Explanation:

Explanation:

Why is this statement incorrect?

Here is why:

Here is the correct breakdown of each organic acid and its corresponding source:i. Oxalic acid $\rightarrow$ a. Dark chocolate (Also found in spinach and cocoa)ii. Acetic acid $\rightarrow$ e. Vinegar (Vinegar is a dilute solution of acetic acid)iii. Ascorbic acid $\rightarrow$ d. Guava, amla (Commonly known as Vitamin C, highly abundant in citrus and sour fruits)iv. Methanoic acid $\rightarrow$ b. Ant sting (Also known as formic acid, responsible for the stinging sensation)v. Malic acid $\rightarrow$ c. Apples (The primary acid responsible for the sour taste in apples)

According to the gravitational force law, force is inversely proportional to the square of the distance between two masses. If the distance is doubled:

The rivers listed are studied under the Jhelum River Basin of Jammu & Kashmir.

This is not a provision of the J&K Reorganisation Act. High Court judges are appointed by the President following the constitutional procedure involving consultation with the judiciary (Collegium system), not solely by the Union Government.

However, based on the latest IUCN Red List categories, none of the options is perfectly correct because:

Correct Matching Breakdowni. Baramulla ➡️ b. Apples: Baramulla is heavily recognized for its vast apple orchards and high-quality production, earning it the reputation of an apple hub in Jammu & Kashmir.ii. Udhampur ➡️ a. Pickles: Under the Pradhan Mantri Formalisation of Micro Food Processing Enterprises (PMFME) scheme's ODOP list, Udhampur is designated for pickles.iii. Samba ➡️ d. Mushroom products: Samba's climatic conditions make it exceptionally suitable for the cultivation and processing of white button and oyster mushrooms.iv. Ramban ➡️ c. Honey: Ramban is highly famous for its organic Sulai honey, which is extracted from rich wild mountain flora.

The correct option is D) All of the above.

PortFeatureDescriptioni. Kamrajar Port (Ennore)a. First corporatised major portLocated in Chennai, Tamil Nadu, it is the only major port in India that is registered as a public company rather than managed by a government trust.ii. JNPT Port (Nhava Sheva)c. India's first landlord-model portLocated in Maharashtra, it became India's first 100% Landlord Major Port, meaning the port authority acts as a regulatory body and landlord, while private firms manage the terminal operations.iii. Paradip Portd. Top cargo-handling major portLocated in Odisha, it recently surpassed Deendayal Port (Kandla) to achieve the highest annual cargo throughput among all major ports in India.iv. Vizhinjam Portb. First deep-water transhipment hubLocated near Thiruvananthapuram, Kerala, this strategic, deep-draft mega port is India's first dedicated deep-water container transhipment port.

This phenomenon is driven by the principle of differential heating of land and water: Specific Heat Capacity: This is the amount of heat energy required to raise the temperature of a substance by 1°C.Water (Ocean) has a remarkably high specific heat capacity. It acts like a giant thermal buffer—it heats up very slowly during the summer and cools down very slowly during the winter. This creates a maritime effect, keeping Place Y's temperatures moderate year-round ($32^\circ\text{C}$ in summer, $10^\circ\text{C}$ in winter).Land (Terrestrial) has a lower specific heat capacity. It heats up very rapidly under solar radiation and loses its heat just as quickly when the sun goes away. This creates a continental climate, leading to extreme temperature swings at Place X ($42^\circ\text{C}$ in summer, $0^\circ\text{C}$ in winter).

Explanation

The First Anglo-Sikh War (1845–1846) was fought between the British East India Company and the Sikh Empire (Sikh Khalsa Army). The battles occurred in the following exact chronological sequence:

Explanation

Here is the step-by-step logical breakdown:

The correct option is B) Both A and R are true but R is not the correct explanation of A.

Why C is the correct answer:

Here is the step-by-step breakdown of the relationships, decoding the expression from left to right:

Here is the step-by-step breakdown of the man's turns:

Here is the step-by-step breakdown of Ravi's movement:

Here is how the code works:

Here is how the code works:

This series actually consists of two alternating patterns combined into one. If you split the series into every other letter, the logic becomes very clear:

This series is made up of pairs of letters, and each pair follows two distinct patterns:

Think of the alphabet in terms of its standard numerical positions (Z = 26, Y = 25, X = 24, and so on):

To find the missing number, we can look at how much the series increases with each step.

The correct answer is option B.