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Staff Selection Commission Sub Inspector Exam

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Question : Muscle fatigue occurs due to accumulation of ______.

Option 1: ATP

Option 2: ADP

Option 3: Lactic Acid

Option 4: Carbonic Acid

Team Careers360 25th Jan, 2024

Correct Answer: Lactic Acid


Solution : The correct option is Lactic Acid.

Numerous reasons, such as the build-up of metabolic wastes like lactic acid, the exhaustion of energy stores (like ATP), faulty neurotransmitter communication, reduced oxygen delivery, and waste product accumulation, can cause muscle weariness. Inadequate rest, excessive muscle use, and insufficient recovery time in between activities might all be contributing factors.

21 Views

Question : If interest is compounded half-yearly, then find the compound interest on INR 8,000 at 20% p.a. for 1 year.

Option 1: INR 1,675

Option 2: INR 1,690

Option 3: INR 1,685

Option 4: INR 1,680

Team Careers360 25th Jan, 2024

Correct Answer: INR 1,680


Solution : Use :
Amount = P(1+ $\frac{r}{n}​)^{nt}$, where
r =  interest rate (decimal)
P = Principal
n = number of terms in a year
t =  time period
According to the question
Amount = P(1+ $\frac{r}{n}​)^{nt}$
Now,
⇒ Amount = 8000(1+ $\frac{0.20}{2}​)^{2 × 1}$
= 8000(1+ $0.10)^{2}$
= 8000 × 1.21  = 9680
Compound Interest  = Amount − Principal = 9680 − 8000 = INR 1,680
Hence, the correct answer is INR 1680.

15 Views

Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement."

He confidently asked the crowd if they thought he was right and the crowd shouted (that they did).

(1) that he did

(2) that they had

(3) that he is

(4) No Improvement

Option 1: (1)

Option 2: (2)

Option 3: (3)

Option 4: (4)

Team Careers360 25th Jan, 2024

Correct Answer: (4)


Solution : The correct answer is the fourth option "No Improvement" since the sentence is in the reported speech and doesn't need any change.

"They" is the correct plural pronoun that is used in the case of reported speech.

Thus, the correct statement is "He confidently asked the crowd if they thought he was right, and the crowd shouted that they did".

17 Views

Question : Directions: A girl walks 100 m straight from her home, to go to the market during her morning walk. Then she turns left for 60 m, then 85 m turning her right, and then again turns right for 60 m, she can see her shadow now. Therefore, in which direction is the entry gate of her house facing and what is the shortest distance from her current location to her home?

Option 1: South, 185 m

Option 2: North, 185 m

Option 3: East, 160 m

Option 4: North, 160 m

Team Careers360 25th Jan, 2024

Correct Answer: South, 185 m


Solution : Firstly, we will draw the diagram as per the given instructions –

From the above diagram, the distance between her starting point and the endpoint = 100 + 85 = 185 m
As she can see her shadow now, that means she is facing the west direction (During the morning, the Sun is in the east direction and the shadow falls on the opposite side of the sun, i.e., the west direction.)
Now, on comparing her movement's direction frame with the general direction frame, it can be concluded that the entry gate of her house is facing the south direction.

So, the entry gate of her house faces the south direction and the distance from her current location to her home is 185 m. Hence, the first option is correct.

10 Views

Question : If decreasing 110 by $x\%$ gives the same result as increasing 50 by $x\%$, then $x\%$ of 650 is what percentage (correct to the nearest integer) is more than $(x-10)\%$ of 780?

Option 1: 12%

Option 2: 17%

Option 3: 14%

Option 4: 18%

Team Careers360 25th Jan, 2024

Correct Answer: 14%


Solution : On decreasing 110 by $x\%$ as $110(1 - \frac{x}{100})$ and the increase of 50 by $x\%$ as $50(1 + \frac{x}{100})$. 
According to the question, 
$⇒110(1 - \frac{x}{100}) = 50(1 + \frac{x}{100})$
$⇒1100-11x=500+5x$
$⇒16x=600$
$⇒x=\frac{75}{2}$
$⇒x=37.5$%
Next, we calculate $x\%$ of 650.
So, 650 × $\frac{37.5}{100}$ = 243.75
Then,$(x-10)\%$ of 780.
So, 780 × $\frac{27.5}{100}$ = 214.5
The required percentage = $\frac{243.75-214.5}{214.5}$ × 100 = 13.63% ≈ 14%
Hence, the correct answer is 14%

15 Views

Question : Select the most appropriate meaning of the underlined idiom.
We dodged a bullet when we didn’t fall for the agents’ words.

Option 1: To give something a try

Option 2: To narrowly avoid situation

Option 3: To be out of your comfort zone

Option 4: To start performing better

Team Careers360 25th Jan, 2024

Correct Answer: To narrowly avoid situation


Solution : The second option is the correct choice.

The expression dodged a bullet is an idiomatic way of saying that someone or something narrowly avoided a potential disaster or harm. In the provided sentence, it suggests that by not falling for the agents' words, the speaker or the situation narrowly escaped a negative outcome or consequence. It implies relief and a recognition of having avoided a potentially harmful or problematic situation.

Therefore, the correct answer is: To narrowly avoid situation

15 Views

Question : Which of the following human genetic disorders is sex-linked?

Option 1: Haemophilia

Option 2: Cystic fibrosis

Option 3: Albinism

Option 4: Phenylketonuria

Team Careers360 25th Jan, 2024

Correct Answer: Haemophilia


Solution : The correct option is Haemophilia.

Haemophilia is a sex-linked genetic condition in humans. A mutation in the genes responsible for blood clotting factors causes it, resulting in prolonged, and profuse bleeding, even from mild injuries. Because haemophilia is inherited on the X chromosome, it is more frequent in men. Females are frequently carriers of the gene, which they can pass on to their sons.

14 Views

Question : The concept of tissue culture was introduced by

Option 1: Hofmeister

Option 2: Hanstein

Option 3: Gottlieb Haberlandt

Option 4: Richard Hamming

Team Careers360 25th Jan, 2024

Correct Answer: Gottlieb Haberlandt


Solution : The correct option is Gottlieb Haberlandt.

Gottlieb Haberlandt, a German botanist, introduced the idea of tissue culture in 1902. He was the first to propose that plant cells may be cultured outside of the plant body in a nutritional media. In 1902, he released a paper titled "Culture of Plant Cells" in which he discussed his research on cultivating plant cells in the nutrient solution.

90 Views

Question : Comprehension:
Read the given passage and answer the questions that follow.
Climate policy must now put health at the centre and promote climate change mitigation policies that bring health benefits simultaneously. Health-focused climate policy would help bring about a planet that has cleaner air, more abundant and safer fresh water and food, more effective and fairer health and social protection systems, and, as a result, healthier people. Investments in clean energy will yield health gains that repay those investments twice over. There are proven interventions able to reduce emissions of short-lived climate pollutants, for instance, applying higher standards for vehicle emissions, which have been calculated to save approximately 2.4 million lives per year, through improved air quality and reduce global warming by about 0.5°C by 2050. The cost of renewable sources of energy has decreased significantly in the last few years, and solar energy is now cheaper than coal or gas in most major economies.
Question:
Which of the following most accurately states the central idea of the passage?

Option 1: Greenhouse gases

Option 2: Pollution

Option 3: Climate policy for health

Option 4: Fossil fuels

Team Careers360 25th Jan, 2024

Correct Answer: Climate policy for health


Solution : The answer is the third option.

Explanation: The central idea of the passage is that climate policy should prioritise health, and by doing so, it can bring about multiple benefits such as cleaner air, safer water and food, more effective health and social protection systems, and overall healthier populations.

Therefore, the correct answer is climate policy for health.

13 Views

Question : Which measure of memory is the largest?

Option 1: Megabyte(MB)

Option 2: Gigabyte(GB)

Option 3: Terabyte(TB)

Option 4: Kilobyte(KB)

Team Careers360 25th Jan, 2024

Correct Answer: Terabyte(TB)


Solution : The correct option is Terabyte (TB).

The terabyte (TB) is the largest unit of memory among those stated. From smallest to greatest, these memory sizes are: A kilobyte (KB) is 1,000 bytes.

  • 1,000 kilobytes (1,000,000 bytes) = 1 Megabyte (MB).
  • A Gigabyte (GB) is 1,000 Megabytes or 1,000,000,000 Bytes.
  • Terabyte (TB): 1,000 Gigabytes.

As a result, a Terabyte (TB) is greater than a Gigabyte (GB), which is greater than a Megabyte (MB), and so on.

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