Staff Selection Commission Combined Higher Secondary Level Exam
Question : Market-Based Economic Dispatch (MBED) mechanism is related to which of the following ministries?
Option 1: Ministry of Power
Option 2: Ministry of Corporate Affairs
Option 3: Ministry of Finance
Option 4: Ministry of Micro, Small and Medium Enterprises
Correct Answer: Ministry of Power
Solution : The correct answer is the Ministry of Power.
The market-based economic dispatch (MBED) mechanism, which is handled by the Union Ministry of Power, represents a significant departure from the current voluntary, decentralised pool-based electricity market.
Question : Directions: In the following question, one / two statements are given, each followed by two conclusions/assumptions, I and II. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions/assumptions, if any, follows from the given statement. Statement: Continuous training is essential for all employees to increase their productivity. Assumptions: I. Training is an essential component of productivity. II. Profitability and productivity are supplementary to each other.
Option 1: Both assumptions I and II are implicit
Option 2: Only assumption I is implicit
Option 3: Only assumption II is implicit
Option 4: Neither assumption I nor II is implicit
Correct Answer: Only assumption I is implicit
Solution : Based on the given statements, let's analyse the given assumptions – Assumption I: Training is an essential component of productivity – In the above statement, it is being said that to increase productivity continuous training is required. Therefore, it is an
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2) and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
Rani has completed her graduation from a reputed university last year.
(1) completed
(2) was completed
(3) had been completed
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The first option is the correct choice.
The sentence is in the simple past tense. Hence, we need to use the phrase "completed" to denote the correct action. Simple past tense needs to be used here as the action took place last year i.e., in
Question : Damping off seedlings is caused by
Option 1: Peronospora parasitica
Option 2: Albugo candida
Option 3: Phytophthora infestans
Option 4: Pythium debaryanum
Correct Answer: Pythium debaryanum
Solution : The correct answer is Pythium debaryanum.
Damping off is a horticultural disease in which seeds and seedlings die or weaken before germination. It is caused by soil-borne fungi, and the most common fungi responsible for it is Pythium debaryanum. Phytophthora, Alternaria and Fusarium
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 383, 381, 377, 369, 353, (?)
Option 1: 325
Option 2: 323
Option 3: 322
Option 4: 321
Correct Answer: 321
Solution : Given: 383, 381, 377, 369, 353, (?)
Follow the pattern to find the missing term –
So, 321 is the missing term in the series. Hence, the fourth option is correct.
Question : If $a-b=8$ and $4ab=84$, then what is the value of $3a^3-3b^3$?
Option 1: 1016
Option 2: 2032
Option 3: 1018
Option 4: 3048
Correct Answer: 3048
Solution : Given: $a-b=8$ and $4ab=84$ ⇒ $ab=21$ Now, $a-b=8$ Cubing both sides we get, ⇒ $(a-b)^3=8^3$ ⇒ $a^3-b^3-3ab(a-b)=512$ Putting the values, we get: ⇒ $a^3-b^3-3\times 21\times8=512$ ⇒ $a^3-b^3=512+504$ ⇒ $a^3-b^3=1016$ $\therefore 3a^3-3b^3 =3\times1016=3048$ Hence, the correct answer is 3048.
Question : Select the option that will improve the (bracketed) part of the sentence. In case of no improvement, select the option 'No improvement'. Check all radiators for (meagre leaks, special) round pipework connections.
Option 1: No improvement
Option 2: cramped leaks, specially
Option 3: small leaks, especially
Option 4: modest leaks, specially
Correct Answer: small leaks, especially
Solution : The third option is correct.
The term meagre leaks is not commonly used and can be confusing. Also, the adverb especially is the correct word to use here because it emphasises that particular attention should be given to the pipework connections.
Therefore,
Question : The given expression is equal to $\frac{\sin^4 A+\cos^4 A}{1-2 \sin^2 A \cos^2 A}$:
Option 1: 1
Option 2: –1
Option 3: 0
Option 4: 2
Correct Answer: 1
Solution : $\frac{\sin^4 A+\cos^4 A}{1-2 \sin^2 A \cos^2 A}$ Since $\sin^2A+\cos^2 A=1$ and $(\sin^2A+\cos^2 A)^2=1$, $=\frac{\sin^4 A+\cos^4 A}{(\sin^2A+\cos^2 A)^2 -2 \sin^2 A \cos^2 A}$ $= \frac{\sin^4 A+\cos^4 A}{\sin^4A+\cos^4 A -2 \sin^2 A \cos^2 A +2 \sin^2 A \cos^2 A}$ $=\frac{\sin^4 A+\cos^4 A}{\sin^4A+\cos^4 A }$ $=1$ Hence, the
Question : Laho is the dance form of which state?
Option 1: Manipur
Option 2: Sikkim
Option 3: Meghalaya
Option 4: Kerala
Correct Answer: Meghalaya
Solution : The correct option is Meghalaya.
The indigenous Garo people of Meghalaya execute a traditional dance called Laho Dance. The Laho dance is performed during various social and cultural events, such as harvest festivals, religious ceremonies, and community gatherings.
Question : Who discovered the Cape of Good Hope in 1488?
Option 1: Magellan
Option 2: Columbus
Option 3: Bartolomeu Dias
Option 4: Vasco da Gama
Correct Answer: Bartolomeu Dias
Solution : The correct answer is Bartolomeu Dias.
After establishing the southern limits of the African continent, the Portuguese explorer Bartolomeu Dias (1450–1500) became the first European mariner to go past the southern tip of Africa in 1488. This opened the way for a sea route
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