Staff Selection Commission Combined Higher Secondary Level Exam
Question : Anant's mother advised him to not sleep under the trees at night as trees release ______ at night.
Option 1: Methane
Option 2: Carbon Dioxide
Option 3: Nitrogen
Option 4: Oxygen
Correct Answer: Carbon Dioxide
Solution : The correct answer is Carbon Dioxide.
Plants cannot undergo photosynthesis at night because less sunlight and more carbon dioxide are building up in the atmosphere. Sleeping among trees makes us feel suffocated since, at night, there is more carbon dioxide present in the area.
Question : If $\sqrt{3}\tan\theta=3\sin\theta$, then the value of $(\sin^{2}\theta-\cos^{2}\theta)$ is:
Option 1: $1$
Option 2: $3$
Option 3: $\frac{1}{3}$
Option 4: None
Correct Answer: $\frac{1}{3}$
Solution : Given: $\sqrt{3}\tan\theta=3\sin\theta$ ⇒ $\sqrt{3}\frac{\sin\theta}{\cos\theta}=3\sin\theta$ ⇒ $\cos \theta=\frac{1}{\sqrt{3}}$ So, $\sin^{2}\theta-\cos^{2}\theta=1-\cos^{2} \theta-\cos^{2} \theta=1-2\cos^{2} \theta$ Putting the value of $\cos \theta=\frac{1}{\sqrt{3}}$, we have, = $1-2×(\frac{1}{\sqrt{3}})^{2}$ = $1-\frac{2}{3}$ = $\frac{1}{3}$ Hence, the correct answer is $\frac{1}{3}$.
Question : In what ratio does the point T(3,0) divide the segment joining the points S(4,–2) and U(1, 4)?
Option 1: $2:1$
Option 2: $1:2$
Option 3: $2:3$
Option 4: $3:2$
Correct Answer: $1:2$
Solution : Given: The point T(3,0) divide the segment joining the points S(4,-2) and U(1,4) Let point T divide line segment SU in the ratio k:1. If the coordinates of point T be ($x$, $y$) and that of points S and U be $(x_1, y_1)$ and $(x_2,
Question : Directions: Select the pair of letter clusters that follows the same pattern as that followed by the two sets of pair of letter clusters given below. Both pairs of letter clusters follow the same pattern. ADK : FIP LPQ : QUV
Option 1: MOR : RTW
Option 2: JKL : LKJ
Option 3: GHM : KNQ
Option 4: PQT : QTP
Correct Answer: MOR : RTW
Solution : Given: ADK : FIP; LPQ : QUV
⇒ ADK : FIP→A + 5 = F; D + 5 = I; K + 5 = P ⇒ LPQ : QUV→L + 5 = Q; P + 5 = U; Q + 5 = V
Question : The HCF and LCM of the two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44, then the other number is:
Option 1: 147
Option 2: 528
Option 3: 132
Option 4: 264
Correct Answer: 132
Solution : Given: HCF and LCM of the two numbers are 44 and 264 respectively. The first number is divided by 2 and the quotient is 44. So, the first number = 44 × 2 = 88 We know that the multiplication of the two numbers =
Question : Directions: Words given on the left side of (::) are related to each other by some Logic/Rule/Relation. Select the missing word/word pair on the right side of (::) from the given alternatives based on the same Logic/Rule/Relation. Ranchi : Jharkhand :: Dispur : ?
Option 1: Sikkim
Option 2: Nagaland
Option 3: Assam
Option 4: Meghalaya
Correct Answer: Assam
Solution : Given: Ranchi : Jharkhand :: Dispur : ?
Like, Ranchi is the capital city of Jharkhand. Similarly, Dispur is the capital city of Assam.
Hence, the third option is correct.
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
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 on the right side of the figure (on line MN). So, the left side of the reflected image will appear
Question : Which of the following errors are identified by the compiler?
Option 1: Logical Errors
Option 2: Hardware Errors
Option 3: Language Errors
Option 4: Image Errors
Correct Answer: Language Errors
Solution : The correct option is Language Errors
The compiler can identify syntax problems, also referred to as language errors. They occur when the code breaches the established rules of the programming language, issues like incorrectly spelt keywords, absent or improperly positioned punctuation and
Question : Which Indian writer wrote the famous book "Mansarovar"?
Option 1: Gita Sahgal
Option 2: Ram Prasad Bismil
Option 3: Premchand
Option 4: Yashpal
Correct Answer: Premchand
Solution : The correct option is Premchand.
"Mansarovar" is a collection of short stories written by the renowned Indian author Premchand. His real name was Dhanpat Rai Srivastava, and he is considered one of the most influential figures in Hindi literature. "Mansarovar" is one of his significant
Question : What type of rock is granite?
Option 1: Extrusive igneous rocks
Option 2: Sedimentary rocks
Option 3: Metamorphic rocks
Option 4: Intrusive igneous rocks
Correct Answer: Intrusive igneous rocks
Solution : The correct answer is Intrusive igneous rocks.
Granite is classified as an intrusive igneous rock. It forms beneath the Earth's surface through the slow cooling and solidification of molten magma, allowing large crystals to develop. This distinguishes it from extrusive igneous rocks, which
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