Staff Selection Commission Multi Tasking Staff Exam
Question : What is the diameter (in cm) of a sphere with a surface area of 6.16 sq. cm?
Option 1: 1.4
Option 2: 0.7
Option 3: 2.8
Option 4: 2.1
Correct Answer: 1.4
Solution : Let the radius be $r$. The total surface area of a sphere = $4\pi r^2$ ⇒ $6.16=4\pi r^2$ ⇒ $6.16=4×\frac{22}{7}×r^2$ ⇒ $r^2=\frac{49}{100}$ $\therefore r=0.7$ cm Diameter = $2×r=2×0.7=1.4$ cm Hence, the correct answer is 1.4.
Question : The only living tissue in the plant xylem is _____.
Option 1: Trachea
Option 2: Xylem fibre
Option 3: Xylem parenchyma
Option 4: Tracheid
Correct Answer: Xylem parenchyma
Solution : The correct option is Xylem parenchyma
A xylem is a vascular or conductive tissue that is in charge of carrying water and minerals from roots to other parts of plants. Tracheids, vessels, xylem parenchyma and xylem fibres are the four cell types that
Question : Directions: In the following question, some parts of the sentence may have some errors. 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".
The boy who studies hard (1) / he will pass (2) / with flying colours. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
The pronoun he should be removed as its use is superfluous and makes the sentence incoherent. The clause will pass with flying colours needs to be linked with the preceding clause, and the removal of
Question : Comprehension: In the following passage, some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
When Jane died (1)________ 1850, she was called "one of the most distinguished novelists (2)_______ England has produced" and "the first who (3)_______ that beautiful kind of fiction, the historical romance." The Porter sisters' careers ended (4)_________ as the Bronte sisters were getting started in the early Victorian (5)________.
Question:
Select the most appropriate option to fill in the blank number 5.
Option 1: terms
Option 2: period
Option 3: session
Option 4: spell
Correct Answer: period
Solution : The correct choice is the second option.
In this context, period refers to a specific span or era of time, indicating the time frame when the Bronte sisters were beginning their careers during the early Victorian era. So, it is the most appropriate choice
Question : Directions: In the following question, some parts of the sentence may have errors. 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."
She is unfortunate enough to (1) / lose few friends she made (2) / during her stay in Chennai (3) / No Error (4)
The article "the" should be added before "few" to convey the intended meaning of the sentence. This helps in indicating the specific group of people, which in this case is the few friends she made
Question : If X : Y = 2 : 3 and Y : Z = 6 : 7, then what is the value of (X + Z) : Y?
Option 1: 17 : 14
Option 2: 17 : 15
Option 3: 11 : 6
Option 4: 11 : 8
Correct Answer: 11 : 6
Solution : Given, X : Y = 2 : 3 And Y : Z = 6 : 7 $\therefore$ X : Y : Z = 4 : 6 : 7 ⇒ (X + Z) : Y = (4 + 7) : 6 = 11 :
Question : The feature of Directive Principles of State Policy in the Indian Constitution is borrowed from the Constitution of-
Option 1: British
Option 2: Ireland
Option 3: French
Option 4: Canadian
Correct Answer: Ireland
Solution : The correct option is Ireland.
The features of the Directive Principles of State Policy are borrowed from the Constitution of Ireland. Article 36-51 in Part IV of the Constitution deals with the DPSPs. These are non-justiciable but are used to establish social and economic
Question : Simple interest received by a person in 12 years on a principal of INR 12000 is 120% of the principal. What is the annual rate of interest?
Option 1: 20%
Option 2: 12%
Option 3: 10%
Option 4: 5%
Correct Answer: 10%
Solution : Principal, $P$ = INR 12000 Term, $n$ = 12 years Simple interest, SI = 120% × $P$ = $\frac{120P}{100}$ Let $R$ be the rate of interest. SI = $\frac{PnR}{100}$ ⇒ $\frac{120P}{100}$ = $\frac{P×12×R}{100}$ ⇒ $R$ = $\frac{120}{12}$ = 10% Hence, the correct answer is 10%.
Question : Which base in place of Thymine is present in Ribonucleic acid (RNA)?
Option 1: Adenine
Option 2: Guanine
Option 3: Uracil
Option 4: Cytosine
Correct Answer: Uracil
Solution : The correct option is Uracil.
Guanine, Adenine and Cytosine are the three nucleotides that Deoxyribonucleic acid (DNA) and RNA share. Thymine is the fourth base in DNA and uracil is the fourth base in RNA. However, RNA is often single-stranded, unlike DNA.
Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No error', Soap removes traces of pesticides and heavy metals that hand sanitisers can left behind.
Option 1: Soap removes traces of pesticides
Option 2: and heavy metals that hand
Option 3: sanitisers can left behind.
Option 4: No error
Correct Answer: sanitisers can left behind.
Solution : The correct choice is the third option.
There is an error in the segment "sanitisers can left behind".
The error in the original sentence is related to the modal verb "can". The correct form should be "can leave behind" instead of
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