Staff Selection Commission Combined Higher Secondary Level Exam
Question : Directions: What should come in place of the question mark (?) in the given series? 417, 429, 443, ?, 469
Option 1: 452
Option 2: 460
Option 3: 455
Option 4: 447
Correct Answer: 455
Solution : Given: 417, 429, 443, ?, 469
Add 12 and 14 alternatively to get the next term of the series – 417 + 12 = 429; 429 + 14 = 443; 443 + 12 = 455; 455 + 14 = 469
So, the missing number is
Question : A mixture of water and alcohol can be separted by
Option 1: Filtration
Option 2: Evaporation
Option 3: Decantation
Option 4: Distillation
Correct Answer: Distillation
Solution : Correct Answer is Distillation
Selective evaporation and condensation are used in the distillation process to separate the components of a liquid mixture. Different vapor pressures (volatilities) of the individual components serve as the foundation for separation. A solid substance can become liquid using this process.
Question : A is twice as fast as B and B is thrice as fast as C is. The journey covered by C in $1\frac{1}{2}$ hours will be covered by A in:
Option 1: 15 minutes
Option 2: 20 minutes
Option 3: 30 minutes
Option 4: 1 hour
Correct Answer: 15 minutes
Solution : Given: That A is twice as fast as B and B is thrice as fast as C, it means that A is six times (2 × 3) as fast as C. $\text{Time}=\frac{\text{Distance}}{{\text{Speed}}}$ If C covers a journey in $1\frac{1}{2}$ hours or $\frac{3}{2}$ hours, then
Question : Which of the following is a tributary of the Indus?
Option 1: Zanskar
Option 2: Son
Option 3: Chambal
Option 4: Yamuna
Correct Answer: Zanskar
Solution : The correct option is Zanskar.
The Zanskar River is a left-bank tributary of the Indus River in Ladakh, India. It originates from the Zanskar Range and flows through the Zanskar Valley before joining the Indus River at about 3,000 meters (9,800 feet) above sea
Question : Select the most appropriate one-word substitution for the given group of words.
A person who attacks or criticises cherished beliefs or institutions.
Option 1: Iconoclast
Option 2: Impregnable
Option 3: Immoral
Option 4: Insolvent
Correct Answer: Iconoclast
Solution : The correct choice is the first option.
Explanation: Iconoclast: This term refers to a person who challenges or opposes established traditions, beliefs, or institutions, often by attacking or criticising them. They aim to bring about change or reform by challenging existing norms.
The meanings of
Question : Match the items in List I with those in List II.
Option 1: i-d, ii-a, iii-c, iv-b
Option 2: i-b, ii-d, iii-a, iv-c
Option 3: i-a, ii-d, iii-b, iv-c
Option 4: i-c, ii-b, iii-a, iv-d
Correct Answer: i-b, ii-d, iii-a, iv-c
Solution : The correct option is i-b, ii-d, iii-a, iv-c.
i-b: M1 is the currency in circulation and demand deposits. POSBd is a point-of-sale debit card transaction. Thus, M1 + POSBd gives a broader measure of M1.
ii-d: M2 is M1 plus savings
Question : The following sentence has been divided into four segments. Identify the segment that contains a grammatical error.
He finally / recalled that / the thieves have leave / from the front door.
Option 1: the thieves have leave
Option 2: recalled that
Option 3: He finally
Option 4: from the front door.
Correct Answer: the thieves have leave
The third part of the sentence has an error. Since the person is recalling the past, we should use had as a helping verb to denote the past perfect tense, as it is used
Question : Which of the following appeared to be with a significant potential for accumulation through food chains?
Option 1: DDT
Option 2: Parathion
Option 3: Lindane
Option 4: Carbary
Correct Answer: DDT
Solution : The correct answer is DDT.
DDT, or dichlorodiphenyltrichloroethane, is a synthetic pesticide. It was first synthesised by an Austrian Chemist in 1874. The chemical properties of DDT result in it to accumulate in animals. DDT accumulates in the fatty tissues of the predators as
Question : Which of the following statements about Akashdeep Singh is not true?
Option 1: Akashdeep Singh won the National Race Walking Championship.
Option 2: Akashdeep Singh qualified for the Paris 2024 Olympics and World Athletics Championships 2023.
Option 3: Akashdeep Singh won a medal at Nomi in 2023.
Option 4: In the men's 20 km race walk event, Akashdeep Singh clocked 1 hour 19 minutes 55 seconds, a new national record, to win the Silver medal.
Correct Answer: In the men's 20 km race walk event, Akashdeep Singh clocked 1 hour 19 minutes 55 seconds, a new national record, to win the Silver medal.
Solution : The correct option is In the men's 20 km race walk event, Akashdeep Singh clocked 1 hour 19 minutes 55
Question : Directions: Arrange the given words in the sequence in which they occur in the dictionary. 1. Irreparable 2. Irreplaceable 3. Irrigated 4. Irritable 5. Irradiation
Option 1: 5, 1, 2, 3, 4
Option 2: 5, 1, 2, 4, 3
Option 3: 5, 2, 1, 4, 3
Option 4: 5, 2, 1, 3, 4
Correct Answer: 5, 1, 2, 3, 4
Solution : Given: 1. Irreparable 2. Irreplaceable 3. Irrigated 4. Irritable 5. Irradiation
Step 1: Compare the first, second and third letters of each word. Since all the words start with the same letter I and are followed by r, then move
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