Staff Selection Commission Sub Inspector Exam
Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : According to the given question figures – The shaded part is shifted to the second, third, fourth, and fifth blocks in a clockwise direction in box 1 to box 2, box 2 to box 3, and so on. So, following the above pattern, the required figure
Question : Which among the following is an example of a dicot seed?
Option 1: Rice
Option 2: Wheat
Option 3: Pulses
Option 4: Maize
Correct Answer: Pulses
Solution : The correct option is Pulses.
Pulses are dicotyledonous plants, meaning they have two cotyledons (seed leaves) in their embryonic stage. Dicot plants include legumes such as lentils, chickpeas, beans, and peas. Dicots are one of the two major categories of flowering plants, the other
Question : Which of the following equations of motion is correct?
I. v = (u/2) + at II. s = 2ut + at2
Option 1: Only I
Option 2: Neither I nor II
Option 3: Only II
Option 4: Both I and II
Correct Answer: Neither I nor II
Solution : The correct answer is Neither I nor II.
In physics, equations that characterise a physical system's behaviour of its motion as a function of time are known as equations of motion. The three equations are: t = duration of motion; a
Question : Simplify the given expression: $(1 + x)^3 + (1 – x)^3 + (–2)^3$
Option 1: $6(1 - x^2)$
Option 2: $-3(1 - x^2)$
Option 3: $-6(1 - x^2)$
Option 4: $3(1 - x^2)$
Correct Answer: $-6(1 - x^2)$
Solution : Given expression, $(1 + x)^3+ (1 - x)^3 + (-2)^3$ We know, $(a+b)^3=a^3+b^3+3a^2b+3ab^2$ And $(a-b)^3=a^3-b^3-3a^2b+3ab^2$ ⇒ $(1 + x)^3+ (1 - x)^3 + (-2)^3$ = $1+x^3+3(1)^2(x)+3(1)(x)^2+1-x^3-3(1)^2(x)+3(1)(x)^2-8$ = $1+x^3+3x+3x^2+1-x^3-3x+3x^2-8$ = $6x^2-6$ = $-6(1-x^2)$ Hence, the correct answer is $-6(1 -x^2)$.
Question : Vultures are:
Option 1: carnivores
Option 2: omnivores
Option 3: decomposers
Option 4: herbivores
Correct Answer: carnivores
Solution : The correct answer is carnivores.
Vultures are carnivores. They primarily feed on the flesh of dead animals, exhibiting scavenging behaviour. Vultures play a crucial role in ecosystems by aiding in the efficient removal of carrion, thus contributing to the ecosystem's overall hygiene. Vultures are birds
Question : Who decides the Repo Rate in India?
Option 1: NITI Aayog
Option 2: RBI
Option 3: Ministry of Finance
Option 4: Parliament
Correct Answer: RBI
Solution : The correct answer is RBI.
The Repo Rate is determined every two months by the Monetary Policy Committee of the Reserve Bank of India.
Question : A person observes that the angle of elevation of the top of a pole of height 15 metres is 30°. What is the distance (in metres) of the person from the pole?
Option 1: $15$
Option 2: $15\sqrt3$
Option 3: $\frac{15}{\sqrt3}$
Option 4: $30$
Correct Answer: $15\sqrt3$
Solution : Given: A person observes that the angle of elevation of the top of a pole of height 15 metres is 30°. We know the formula, $\tan \theta=\frac{\text{Height}}{\text{Base}}$. In $\triangle$ABC, $\tan \angle BCA= \tan 30°$ ⇒ $\frac{AB}{BC}=\frac{1}{\sqrt3}$ ⇒ $\frac{15}{BC}=\frac{1}{\sqrt3}$ $\therefore BC = 15\sqrt3$ Hence, the correct
Question : Directions: Select the option in which the given figure is embedded (rotation is NOT allowed).
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of the question figure with all the option figures, it is evident that the given question figure is embedded only in the second option figure.
Hence,
Question : Directions: Aman is 3 years older than Rohit and 3 years younger than Suresh, while Rohit and Danish are twins. How many years is Suresh older than Danish?
Option 1: 3
Option 2: 2
Option 3: 6
Option 4: 12
Correct Answer: 6
Solution : Given: Aman is 3 years older than Rohit and 3 years younger than Suresh, while Rohit and Danish are twins.
Let the age of Rohit be = x years. Then, the age of Aman will be = x + 3 years. The age of Suresh
Question : Directions: Select the option that is embedded in the given figure as its part (rotation is NOT allowed).
Solution : Since there is a restriction on the rotation of the figure, we will check which of the option figures can exactly fit in the given question figure. By comparison of all the option figures, only the fourth option figure is embedded in the given question figure.
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