Staff Selection Commission Sub Inspector Exam
Question : Muscle fatigue occurs due to accumulation of ______.
Option 1: ATP
Option 2: ADP
Option 3: Lactic Acid
Option 4: Carbonic Acid
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.
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
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.
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)
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".
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
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.
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%
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%
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
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
Question : Which of the following human genetic disorders is sex-linked?
Option 1: Haemophilia
Option 2: Cystic fibrosis
Option 3: Albinism
Option 4: Phenylketonuria
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.
Question : The concept of tissue culture was introduced by
Option 1: Hofmeister
Option 2: Hanstein
Option 3: Gottlieb Haberlandt
Option 4: Richard Hamming
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.
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
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.
Question : Which measure of memory is the largest?
Option 1: Megabyte(MB)
Option 2: Gigabyte(GB)
Option 3: Terabyte(TB)
Option 4: Kilobyte(KB)
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.
As a result, a Terabyte (TB) is greater than a Gigabyte (GB), which is greater than a Megabyte (MB), and so on.
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile