Staff Selection Commission Sub Inspector Exam
Question : Hydro Thermal Carbonisation technology(HTC) developed at IIT Kharagpur is a process of generation of energy from which of the following sources?
Option 1: Water current in rivers
Option 2: Hydropower in barrages and dams
Option 3: Solid waste with high moisture content
Option 4: Naturally available Hydrocarbons
Correct Answer: Solid waste with high moisture content
Solution : The correct option is solid waste with high moisture content.
The Hydro-Thermal Carbonisation (HTC) technology developed at IIT Kharagpur isn't directly for generating energy but rather for transforming organic waste, solid waste with high moisture content, into valuable resources.
Question : Select the option that can be used as a one-word substitute for the given group of words.
A place where coins are made
Option 1: Trough
Option 2: Post Office
Option 3: Grove
Option 4: Mint
Correct Answer: Mint
Solution : The fourth option is correct.
The one-word substitute for the given group of words "a place where coins are made" is mint.
A mint can refer to a facility where coins are manufactured.
Therefore, the correct answer is mint.
Question : Under which Article of the Constitution of India is the National Commission for Scheduled Castes established?
Option 1: Article 336
Option 2: Article 338
Option 3: Article 333
Option 4: Article 335
Correct Answer: Article 338
Solution : The correct answer is Article 338.
The National Commission for the Scheduled Castes and Scheduled Tribes was established under Article 338 of the Constitution to oversee all the protections afforded to the Scheduled Castes and Scheduled Tribes by the Constitution or other laws. The
Question : Directions: In the following question, some parts of the sentence may have error. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No Error".
In the Mathematics class, I sit next to (1) / Raj, who is the captain of the basketball (2) / team and undoubtedly the best basketball player in Delhi. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct answer is the fourth option.
Since the sentence is grammatically accurate and doesn't need any change. The sentence provides information about Raj's achievements in basketball and emphasises his skill in the sport.
Question : The following table shows the number of centuries scored by cricketers in the past 5 years.
The total number of centuries scored by which two players in the mentioned years are the same?
Option 1: D and E
Option 2: D and B
Option 3: A and C
Option 4: A and E
Correct Answer: D and E
Solution : The total number of centuries scored by each player over the past 5 years is given by adding the centuries scored for each year. For player A = 1 + 0 + 2 + 1 + 1 = 5 For player B =
A letter, poem etc. whose author is unknown.
Option 1: Autonomous
Option 2: Anomalous
Option 3: Anonymous
Option 4: Autocrat
Correct Answer: Anonymous
Solution : The third option is correct.
Explanation: The word anonymous is an adjective that describes something for which the author's identity is not known or disclosed. In this context, it is used to refer to a letter, poem, etc., where the author remains unidentified.
Therefore, the
Question : Who among the following gave "The Theory of Natural Selection"?
Option 1: Richard High Ebright
Option 2: Lamarck
Option 3: Charles Darwin
Option 4: Francesco Redi
Correct Answer: Charles Darwin
Solution : The correct option is Charles Darwin.
Natural selection theory, introduced by Charles Darwin and Alfred Russel Wallace, is a key idea in evolutionary biology. It is a major mechanism that drives the evolution and adaptive processes in living organisms explaining how they adapt to
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. When another old cave is discovered in the south of France, it is not (1)________ in the news. Rather, it is an ordinary event. Such discoveries are so (2)________ these days that hardly anybody pays heed to them. However, when the Lascaux cave complex was discovered in 1940, the world was (3)________. Painted directly on its walls were hundreds of scenes showing how people lived thousands of years ago. The scenes show people hunting animals, such as bison or wild cats. Other images (4)________ birds and, most noticeably, horses, which appear in more than 300 wall images, by far (5)________ all other animals. Question: Select the most appropriate option to fill in the blank number 1.
Option 1: suitably
Option 2: nearly
Option 3: merrily
Option 4: usually
Correct Answer: usually
The sentence suggests that the discovery of old caves in the south of France is a common occurrence and does not typically attract much attention. The word usually fits well in this context, indicating that such discoveries are ordinary and
Question : The given pie charts represent the popularity of ice-cream flavours in the years 2005 and 2015. If a percentage point shift results in annual additional sales of INR 10,000, how much (in INR), did the combined annual strawberry and butterscotch sales increase from 2005 to 2015?
Option 1: INR 74,000
Option 2: INR 37,000
Option 3: INR 65,000
Option 4: INR 10,000
Correct Answer: INR 74,000
Solution : 1% = INR 10000 Combined annual strawberry and butterscotch sales in 2005 = 18.90 + 10.80 = 29.70% Combined annual strawberry and butterscotch sales in 2015 = 20.50 + 16.60 = 37.10% Percentage increase = 37.10 – 29.70 = 7.4% Required sales increase =
Question : In $\triangle{ABC}, \angle A=90^{\circ}, {AB}=16\ cm $ and $AC =12 \ cm$. $D$ is the midpoint of $AC$ and $DE \perp CB$ at $E$. What is the area (in ${cm}^2$ ) of $\triangle{CDE}$?
Option 1: 8.64
Option 2: 7.68
Option 3: 5.76
Option 4: 6.25
Correct Answer: 8.64
Solution : Given: In $\triangle {ABC}, \angle A=90^{\circ}, {AB}=16\ cm $ and $AC =12 \ cm$. $D$ is the midpoint of $AC$ and $DE \perp CB$ at $E$. The area of the triangle = $\frac{1}{2}\times \text{Base} \times \text{Height}$ Use the Pythagoras's theorem in $\triangle ABC$, $(BC)^2=(AB)^2+(AC)^2$ ⇒
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