Staff Selection Commission Sub Inspector Exam
Question : Which of the following dams is correctly paired with the state in which it is located?
Option 1: Tehri dam – Uttar Pradesh
Option 2: Hirakud dam – Odisha
Option 3: Bhakra Nangal dam – Tamil Nadu
Option 4: Nagarjuna dam – Rajasthan
Correct Answer: Hirakud dam – Odisha
Solution : The correct option is Hirakud Dam – Odisha.
The Hirakud Dam is indeed located in the state of Odisha in India. The dam is built across the Mahanadi River and is one of the longest dams in the world. It serves multiple
Question : Directions: Select the option in which the given figure is embedded (rotation is NOT allowed).
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
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 fourth option figure.
Hence,
Question : River Kabini is a tributary of the:
Option 1: Mahanadi
Option 2: Godavari
Option 3: Krishna
Option 4: Kaveri
Correct Answer: Kaveri
Solution : The correct answer is Kaveri.
River Kabini is a tributary of the Kaveri. It originates in the Wayanad district of Kerala. It is formed by the confluence of the Panamaram River and the Mananthavady River. It flows eastward to join the Kaveri River at
Question : The average weight of 40 children in a class is 36.2 kg. When three more children of weights 42.3 kg, 39.7 kg, and 39.5 kg join the class, the average weight of the 43 children in the class is:
Option 1: 39.2 kg
Option 2: 36.5 kg
Option 3: 38.35 kg
Option 4: 37.3 kg
Correct Answer: 36.5 kg
Solution : Total weight of 40 children = 40 × 36.2 kg = 1448 kg Total weight of 43 children = 1448 + 42.3 + 39.7 + 39.5 = 1569.5 kg So, the required average weight = $\frac{1569.5}{43}$ = 36.5 kg Hence, the correct answer is
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
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 MN). So, the left side of the reflected image will appear
Question : If $4\left(\operatorname{cosec}^2 57^\circ-\tan ^2 33^\circ\right)-\cos 90^\circ+y \tan ^2 66^\circ \tan ^2 24^\circ=\frac{y}{2}$, then the value of $y$ is:
Option 1: 4
Option 2: – 4
Option 3: 8
Option 4: – 8
Correct Answer: – 8
Solution : $4\left(\operatorname{cosec}^2 57^\circ-\tan ^2 33^\circ\right)-\cos 90^\circ+y \tan ^2 66^\circ \tan ^2 24^\circ=\frac{y}{2}$ Using, $\cos 90^\circ = 0$, $ \operatorname {cosec}^2 A - 1 = \cot^2 A$ and $\tan (90^\circ - A) = \cot A$ where $A$ is an angle. Substituting these identities into the given
Question : Select the most appropriate meaning of the underlined idiom. I did not even listen to him; he was only talking through his hat.
Option 1: Talking non-stop
Option 2: Talking garrulously
Option 3: Talking nonsense
Option 4: Talking ignorantly
Correct Answer: Talking nonsense
Solution : The correct answer is the third option.
The idiom "talking through his hat" is an expression used to indicate that someone is talking or making statements without possessing proper knowledge or understanding of the subject. It suggests that the person is speaking nonsense, often
Question : In which of the following silicon is not used?
Option 1: Solar panels
Option 2: IC manufacturing
Option 3: Optical glass
Option 4: Ink pen
Correct Answer: Ink pen
Solution : The correct option is an Ink pen.
Ink pens do not contain silicon. Silicon is frequently employed as a coating or substrate in the manufacture of precision optical components and equipment. Silicon is used in the production of photovoltaic solar cells, which use
Question : In $\triangle$ ABC, $\angle$ BCA = $90^{\circ}$, AC = 24 cm and BC = 10 cm. What is the radius (in cm) of the circumcircle of $\triangle$ ABC?
Option 1: 12.5
Option 2: 13
Option 3: 25
Option 4: 26
Correct Answer: 13
Solution : In $\triangle$ ABC, $\angle$ BCA = $90^{\circ}$, AC = 24 cm and BC = 10 cm AB2 = AC2 + BC2 $AB = \sqrt{24^2 + 10^2} = \sqrt{576+100} = \sqrt{676} = 26$ cm Circumradius of $\triangle ABC = \frac{AB}{2} = \frac{26}{2} =
Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: MSWCH
Option 2: NSWAH
Option 3: GMRVY
Option 4: UZEIL
Correct Answer: GMRVY
Solution : Let's check each option –
First option: MSWCH; S – M = 6; W – S = 4; C – W = 6; H – C = 5; The difference between the letters is not in decreasing order. Second option: NSWAH; S – N =
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