Staff Selection Commission Combined Higher Secondary Level Exam
Question : Who was the contemporary South Indian ruler of Harshavardhana?
Option 1: Krishnadevaraya
Option 2: Pulakeshin II
Option 3: Mayur Varma
Option 4: Chikka Devaraja Wodeyar
Correct Answer: Pulakeshin II
Solution : The correct option is Pulakeshin II.
Pulakeshin II, the Chalukya king of Vatapi (modern Badami in Karnataka), was the contemporaneous South Indian ruler of Harshavardhana. Pulakeshin II was a strong and ambitious emperor who expanded the Chalukya Empire to include the majority of
Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: 36
Option 2: 66
Option 3: 76
Option 4: 56
Correct Answer: 36
Solution : Let's check the options – First option: 36; 62 = 36; 36 is a perfect square. Second option: 66; 66 is not a perfect square. Third option: 76; 76 is not a perfect square. Fourth option: 56; 56 is not a perfect square.
So,
Question : A solid cylinder having a base of radius 7 cm and a height of 5 cm is bisected from its height to get two identical cylinders. What will be the percentage increase in the total surface area?
Option 1: 58.33 percent
Option 2: 64.56 percent
Option 3: 69.44 percent
Option 4: 52.56 percent
Correct Answer: 58.33 percent
Solution : The radius of the base of the cylinder, $r$ = 7 cm The height of the cylinder, $h$ = 5 cm The total surface area of the original cylinder $= 2 \pi \times r(r+h)$ $= 2 \pi \times 7(7+5)$ $=168\pi$ Total surface area for
Question : Tropical rainforests are characterised by
Option 1: Absence of trees
Option 2: Least productivity
Option 3: Maximum biodiversity
Option 4: Minimum biodiversity
Correct Answer: Maximum biodiversity
Solution : The correct answer is maximum biodiversity.
Some of the main characteristics of the tropical rainforest biome include extremely high yearly rainfall, high average temperatures, nutrient-poor soil, and high stages of biodiversity (species productivity). It has more than 2,000mm of rain on an average every
Question : Parts of a sentence are given below in jumbled order. Select the option that arranges the parts in the correct order to form a meaningful sentence. A) said that they are B) hear this news C) very sorry to D) Catherine and David
Option 1: C, D, B, A
Option 2: D, A, C, B
Option 3: B, D, C, A
Option 4: A, C, D, B
Correct Answer: D, A, C, B
Solution : The correct choice is the second option: DACB.
Explanation: The sentence starts by introducing Catherine and David (D), then mentions that they said something (A), followed by expressing being sorry (C), and finally, it ends by referring to hearing specific news
Question : Which union territory of India has a sea named after it?
Option 1: Puducherry
Option 2: Andaman and Nicobar Islands
Option 3: Dadra and Nagar Haveli
Option 4: Daman and Diu
Correct Answer: Andaman and Nicobar Islands
Solution : The correct answer is Andaman and Nicobar Islands.
Andaman and Nicobar Islands is a union territory of India that consists of more than 500 islands. Andaman and Nicobar Islands have a sea in their names, which is the Andaman Sea. The Andaman
Question : Directions: In the following question, select the related number from the given alternatives. 9 : 738 :: 10 : ?
Option 1: 1200
Option 2: 1001
Option 3: 1100
Option 4: 1010
Correct Answer: 1010
Solution : Given 9 : 738 :: 10 : ?
Like, 9 : 738→93 = 729 + 9 = 738 Similarly, 10 : ?→103 = 1000 + 10 = 1010
So, 1010 is related to 10. Hence, the fourth option is correct.
Question : If a map of a city was drawn on a scale of 0.2 cm to a km, what area would represent a country if it has an area of 22500 km2 $
Option 1: 2500 km2
Option 2: 2250 km2
Option 3: 5625 km2
Option 4: 900 km2
Correct Answer: 900 km2
Solution : Map area = Country area $\times$ (Scale)2 Country area = 22500 km2 Scale of 0.2 cm per km corresponds to 1 km. ⇒ Map area = 22500 × (0.2)2 ⇒ Map area = 22500× 0.04 $\therefore$ Map Area = 900
Question : If $\cot 2 {A}=\tan \left({A}-48^{\circ}\right)$, then what is the value of $A$?
Option 1: $36^{\circ}$
Option 2: $46^{\circ}$
Option 3: $42^{\circ}$
Option 4: $40^{\circ}$
Correct Answer: $46^{\circ}$
Solution : $\cot 2 {A}=\tan \left({A}-48^{\circ}\right)$ $⇒\tan(90^{\circ}- 2 {A})=\tan \left({A}-48^{\circ}\right)$ $⇒90^{\circ}- 2 {A}=A-48^{\circ}$ $⇒3 {A}= 138^{\circ}$ $\therefore {A}= 46^{\circ}$ Hence, the correct answer is $46^{\circ}$.
Question : Which of the following statements regarding the lenses is/are correct? I. The power of a convex lens is represented as a positive number. II. Power of a concave lens is represented as a negative number.
Option 1: Both I and II
Option 2: Only II
Option 3: Only I
Option 4: Neither I nor II
Correct Answer: Both I and II
Solution : The correct option is both I and II.
In optics, the power of a convex lens is represented as a positive number, indicating its converging ability. Conversely, the power of a concave lens is a negative number, denoting its diverging nature.
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