Staff Selection Commission Sub Inspector Exam
Question : Which German chemist was the first to show a graphical representation of the periodicity of an atomic volume plotted against atomic weight?
Option 1: Julius Lothar Meyer
Option 2: John Newlands
Option 3: William Ramsay
Option 4: Glenn T. Seaborg
Correct Answer: Julius Lothar Meyer
Solution : The correct option is Julius Lothar Meyer.
The German chemist who first showed a graphical representation of the periodicity of an atomic volume plotted against atomic weight was Julius Lothar Meyer. Meyer, along with Dmitri Mendeleev, independently developed early versions of the
Question : Select the most appropriate SYNONYM of the highlighted word.
The crowds gathered were partisan in nature.
Option 1: pitiful
Option 2: Kind
Option 3: biased
Option 4: Destructive
Correct Answer: biased
Solution : The third option is correct.
Explanation: The grammatical hint here is to find a term that conveys a lack of impartiality or fairness, as implied by the word partisan. Biased aligns with the idea of being inclined towards a particular viewpoint or group,
Question : Select the most appropriate synonym of the underlined word in the given sentence. Pankaj always tries his best to uphold the reputation of his institution.
Option 1: opinion
Option 2: position
Option 3: prestige
Option 4: growth
Correct Answer: prestige
Solution : The correct option is the third option.
Explanation: In the context of the sentence, reputation refers to the esteem or regard that Pankaj endeavours to maintain for his institution, which closely aligns with the meaning of prestige, which also means reputation or influence arising from
Question : Select the most appropriate ANTONYM of the given word. Stupendous
Option 1: Terrible
Option 2: Smart
Option 3: Perfect
Option 4: Jealous
Correct Answer: Terrible
Solution : The correct choice is the first option.
Stupendous signifies something highly impressive, while terrible represents something of very poor quality, causing distress or dissatisfaction. They stand at opposite ends regarding the level of excellence or quality of something.
The meanings of the other words
Question : Calculate the GDP at Factor Cost given in the following data. GDP at market price = 600 crores Consumption of fixed capital = 100 crores Indirect taxes = 200 crores Subsidies = 50 crores.
Option 1: 350 crores
Option 2: 850 crores
Option 3: 950 crores
Option 4: 450 crores
Correct Answer: 350 crores
Solution : The correct option is 350 crores.
Gross domestic product (GDP) at factor cost is calculated by subtracting the consumption of fixed capital from GDP at market price and then adjusting for indirect taxes and subsidies. The formula is as follows:
GDP at Factor Cost
Question : The Constitutional amendment through which the four regional languages, namely Bodo, Dogri, Maithili and Santhali, were included in the Constitution is
Option 1: 72nd Amendment
Option 2: 92nd Amendment
Option 3: 93rd Amendment
Option 4: 94th Amendment
Correct Answer: 92nd Amendment
Solution : The correct option is 92nd.
The 92nd Amendment Act of 2003 is the constitutional amendment that allowed Bodo, Dogri, Maithili, and Santhali to be listed in the Eighth Schedule of the Indian Constitution. This amendment promoted linguistic variety and cultural representation by designating these
Question : Select the most appropriate idiom for the sentence given below.
The detective suspected Shyam because of his odd behaviour while investing in the scam.
Option 1: To hang fire
Option 2: To bite the dust
Option 3: A dog in the manger
Option 4: To smell a rat
Correct Answer: To smell a rat
Solution : The correct choice is the fourth option.
The expression, to smell a rat means to suspect that something is wrong or suspicious. In this context, the detective suspected Shyam due to his unusual behaviour, indicating that he believed something deceptive or
Question : A line touches a circle of radius 6 cm. Another line is drawn which is tangent to the circle. If the two lines are parallel, then the distance between them is:
Option 1: 8 cm
Option 2: 12 cm
Option 3: 10 cm
Option 4: 6 cm
Correct Answer: 12 cm
Solution :
Let MN and PQ be two parallel tangents and AO = OB = 6 cm So, AB = AO + OB = 6 + 6 = 12 cm Hence, the correct answer is 12 cm.
Question : Directions: Select the correct mirror image of the given combination when the mirror is placed at PQ as shown below.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear close to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on Line PQ). So, the left side of the reflected image will appear
Question : If $\frac{\cos ^2 \theta}{\cot ^2 \theta–\cos ^2 \theta}=3$, where $0^{\circ}<\theta<90^{\circ}$ then the value of $\theta$ is:
Option 1: $45^{\circ}$
Option 2: $50^{\circ}$
Option 3: $60^{\circ}$
Option 4: $30^{\circ}$
Correct Answer: $60^{\circ}$
Solution : Given: The value of $\frac{\cos ^2 \theta}{\cot ^2 \theta–\cos ^2 \theta}=3$, where $0^{\circ}<\theta<90^{\circ}$. Use the trigonometric identity, $\sin^2 \theta+\cos^2 \theta=1$. $\frac{\cos ^2 \theta}{\cot ^2 \theta–\cos ^2 \theta}=3$ ⇒ $\cos ^2 \theta=3(\cot ^2 \theta–\cos ^2 \theta)$ ⇒ $\cos ^2 \theta=3(\frac{\cos ^2 \theta}{\sin^2 \theta}–\cos ^2 \theta)$ Dividing
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