Staff Selection Commission Combined Higher Secondary Level Exam
Question : Which of the following gas leaked in the Bhopal gas tragedy in December 1984?
Option 1: Methyl isocyanate
Option 2: Methyl Chloride
Option 3: Methyl phosphate
Option 4: Methyl isopropyl
Correct Answer: Methyl isocyanate
Solution : The correct option is Methyl isocyanate.
The Bhopal gas industrial catastrophe happened on the night of December 3, 1984. The catastrophe occurred at a pesticide facility owned by Union Carbide India Limited (UCIL), which discharged methyl isocyanate (MIC) gas, and other toxic gases
Question : Simplify $\frac{36 a^2-49 b^2}{6 a+7 b}$.
Option 1: $7b - 6a$
Option 2: $6a + 7b$
Option 3: $6a - 7b$
Option 4: $\frac{1}{6a-7b}$
Correct Answer: $6a - 7b$
Solution : $36a^2=(6a)^2$ and $49b^2=(7b)^2$ Thus we get, $36a^2−49b^2=(6a)^2−(7b)^2=(6a+7b)(6a−7b)$ So, $\frac{36 a^2-49 b^2}{6 a+7 b}$ $=\frac{(6a+7b)(6a−7b)}{(6a+7b)}$ $=(6a−7b)$ Hence, the correct answer is $6a - 7b$.
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed at the bottom of the figure (on line MN). So, the top of the reflected image will appear as the
Question : Directions: In a certain code language, LAMP is coded as 6413, and MALE is coded as 1246. What is the code for P in the given code language?
Option 1: 3
Option 2: 1
Option 3: 2
Option 4: 6
Correct Answer: 3
Solution : Given: LAMP is coded as 6413, and MALE is coded as 1246.
By comparing each letter and code of the words LAMP and MALE, we get – In both words, common letters are A/M/L and common numbers/codes are 1/4/6 Thus, in the word MALE, E
Question : Choose the word that can substitute for the given group of words. A publication containing astronomical or meteorological information.
Option 1: Allegory
Option 2: Bane
Option 3: Conscription
Option 4: Almanac
Correct Answer: Almanac
Solution : The correct choice is the fourth option.
An almanac is a publication containing astronomical and meteorological information, along with other data such as tide tables, planting charts, and other miscellaneous information.
The meanings of the other options are as follows:
Allegory: An allegory is a
Question : Directions: Select the combination of letters that when sequentially placed in the blanks of the given series will make the series logically complete. K_MNLO_KM_KHNUJ_
Option 1: ELRO
Option 2: REST
Option 3: LROE
Option 4: LLRE
Correct Answer: LLRE
Solution : Given: K_MNLO_KM_KHNUJ_
To fill the series we have to divide the series – K_MN / LO_K / M_KH / NUJ_ Let's check each option – First option: ELRO; KEMN / LOLK / MRKH / NUJO (No particular pattern
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. The solar system is made up of the sun, planets, moons, asteroids, and comets that 1.______ around it. Its mysteries and wonders have captured the imagination of people from all walks of life, and it continues to be an area of active research and exploration. The sun is at the centre of the solar system and is the largest object in it. The eight planets in the solar system, 2._________ Earth, orbit around the sun in nearly circular paths. While the sun is at the centre of the solar system and dominates its gravitational pull, each planet has its own unique set of characteristics that makes it a fascinating object to study. Each planet in the solar system has unique characteristics and features. 3._________ planets, such as Mercury and Venus, are small and rocky, while others, like Jupiter and Saturn, are much larger and made up mostly of gas. The outer planets, Uranus and Neptune, are 4._______ as 'ice giants' because they contain more water, ammonia, and methane than the gas giants. In addition to the planets, the solar system also has numerous moons, asteroids, and comets. These objects provide important 5.______ about the formation and evolution of the solar system. Question: Select the most appropriate option to fill in the blank 3.
Option 1: Few
Option 2: Some
Option 3: Many
Option 4: A lot
Correct Answer: Some
Solution : The most appropriate option is the second option.
Explanation: Some indicates an unspecified quantity or number, suggesting that among the planets in the solar system, a certain number have specific characteristics. It implies that not all planets have the same characteristics and have diversity among
Question : Directions: The mall is 250 metres Northwest of the market. The school is 250 metres southwest of the market. In which direction is the school from the mall?
Option 1: East
Option 2: West
Option 3: South
Option 4: North
Correct Answer: South
Solution : Firstly, we will draw the diagram as per the given instructions –
So, the school is in the south direction of the mall. Hence, the third option is correct.
Question : Piyush marks the price of his article as 30 percent more than its cost price. If he sells the article for Rs. 5720 after allowing a discount of 20 percent, then what will be the cost price of the article?
Option 1: Rs. 5350
Option 2: Rs. 5000
Option 3: Rs. 5500
Option 4: Rs. 5200
Correct Answer: Rs. 5500
Solution : The selling price of the article ($SP$) = Rs. 5720 Marked price (MP) $=\frac{100}{(100-\text{discount}\%)}\times SP$ Selling price with 20% discount $=\frac{100}{100-20}\times 5720=$ Rs. 7150 So, the cost price $=\frac{100}{130}\times 7150=$ Rs. 5,500 Hence, the correct answer is Rs. 5500.
Question : Who compiled the tales of "The Panchatantra"?
Option 1: Valmiki
Option 2: Vedavyasa
Option 3: Vishnu Sharma
Option 4: Tulsidas
Correct Answer: Vishnu Sharma
Solution : The correct option is Vishnu Sharma.
Vishnu Sharma (6th century CE) was an Indian author best known for his work, the Panchatantra, a collection of tales and stories that is considered one of India's most popular works of literature. The Panchatantra is an
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