Staff Selection Commission Combined Higher Secondary Level Exam
Question : Which of the following is not a type of a fold mountain?
Option 1: Aravalli Range
Option 2: The Rhine Valley
Option 3: Appalachians
Option 4: Ural Mountains
Correct Answer: The Rhine Valley
Solution : The correct option is The Rhine Valley.
The Rhine Valley is not a type of fold mountain. The Rhine Valley is a geological feature associated with tectonic activity, but it is not formed through the folding of rock layers that characterise fold
Question : A _______________is an electronic device that receives a weak signal and regenerates it.
Option 1: hub
Option 2: router
Option 3: repeater
Option 4: switch
Correct Answer: repeater
Solution : The correct option is repeater.
A repeater is an electronic device that receives a weak signal and regenerates or amplifies it to extend its range or improve its quality. Repeaters are commonly used in telecommunications and networking to boost signals in situations where the original
Question : In a right-angled triangle $\mathrm{XYZ}$, if $\mathrm{X}=60^{\circ}$ and $\mathrm{Y}=30^{\circ}$, then find the value of $\sin (\mathrm{X}-\mathrm{Y})$.
Option 1: $\frac{3}{5}$
Option 2: $\frac{1}{2}$
Option 3: $\frac{3}{4}$
Option 4: $\frac{2}{3}$
Correct Answer: $\frac{1}{2}$
Solution : Given: $\mathrm{X}=60^{\circ}$ and $\mathrm{Y}=30^{\circ}$ Then, $\sin (\mathrm{X}-\mathrm{Y})$ = $\sin(60-30)^{\circ}$ = $\sin 30^{\circ}$ = $\frac{1}2$ Hence, the correct answer is $\frac{1}2$.
Question : $\overline{\mathrm{CT}}$ is a tangent to a circle at the point $\mathrm{T}$ on the circle. Chord $\overline{\mathrm{AB}}$ of the circle is extended to meet the tangent $\overline{\mathrm{CT}}$ at the point $\mathrm{C}$. If $\mathrm{m}(\overline{\mathrm{AB}})=3 \mathrm{~cm}$ and $\mathrm{m}(\overline{\mathrm{BC}})=2.4 \mathrm{~cm}$, find the length (in $\mathrm{cm}$ ) of the tangent $\overline{\mathrm{CT}}$.
Option 1: 4.2
Option 2: 3.6
Option 3: 3.2
Option 4: 4.0
Correct Answer: 3.6
Solution : AC = 1.5 + 1.5 + 2.4 = 5.4 cm According to the chord tangent theorem, $TC^2=AC\times BC$ ⇒ $TC^2=5.4\times 2.4$ ⇒ $TC^2=12.96$ ⇒ $TC=\sqrt{12.96}$ ⇒ $TC=3.6$ cm Hence, the correct answer is 3.6 cm.
Question : Directions: FJMN is related to LPST in a certain way based on a certain relationship between the given letters in the English alphabetical order. In the same way, ADEL is related to GJKR. Which of the given options is DMJN related to following the same logic?
Option 1: LPTQ
Option 2: JSPT
Option 3: TJMK
Option 4: SJJP
Correct Answer: JSPT
Solution : Given: FJMN is related to LPST and ADEL is related to GJKR.
Add 6 to the place value of each letter of FJMN, and ADEL, to obtain the related letter clusters – FJMN→F + 6 = L; J + 6 = P; M + 6
Question : The canal which links Atlantic Ocean with Pacific Ocean is
Option 1: Suez
Option 2: Malacca
Option 3: Panama
Option 4: Gibralter
Correct Answer: Panama
Solution : The correct answer is Panama.
The manmade Panama Canal, which spans the Isthmus of Panama and is 82 km (51 mi) long, links the Atlantic and Pacific oceans and serves as a commerce route for ships. One of the most significant shipping lanes in the
Question : Comprehension:
Read the given passage and answer the questions that follow.
Such examples of commercial success, innovation, drive, vision, determination, adaptability, and adventure are anchored in the basic Indian openness to, and talent for, acquiring material wealth. For every success story, there are, of course, dozens of failures. Traditional Indian firms have their strengths, but also their weaknesses, and of these perhaps the most debilitating are a lack of teamwork and a weakness for a quick profit. These reflect ingrained ways of thinking and planning, as does the distrust of anyone outside the family, which inhibits the adoption of modern practices of management. But such weaknesses are more than compensated for by the desire to succeed, which is probably more intense in India, given the omnipresent fear of poverty, the cut-throat competition for each opportunity, and the asphyxiating hold of hierarchy.
Question: What are the weaknesses of traditional Indian firms?
Option 1: Ingrained ways of thinking and adoption of modern practices of management
Option 2: A weakness for quick profit and the openness to acquiring wealth
Option 3: A lack of team work and the cut-throat competition
Option 4: A lack of team work and a weakness for quick profit
Correct Answer: A lack of team work and a weakness for quick profit
Solution : The correct choice is the fourth option.
The weakness of traditional Indian firms, as mentioned in the passage, is that there is a lack of teamwork and a weakness for quick profit, which makes the
Question : Who invented Helicopter?
Option 1: Nicolaus Copernicus
Option 2: Igor Sikorsky
Option 3: Kenneth Cockrell
Option 4: Drinker
Correct Answer: Igor Sikorsky
Solution : The correct answer is Igor Sikorsky.
The VS-300, the world's initial workable helicopter, took flight on September 14, 1939, in Stratford, Connecticut. The helicopter, designed by Igor Sikorsky and manufactured by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation, was the first to
Question : An article is sold for INR 864 after two successive equal discounts of 25% each on its marked price. What is the discount (in INR)?
Option 1: 698
Option 2: 612
Option 3: 584
Option 4: 672
Correct Answer: 672
Solution : Here Marked price is denoted by MP, selling price is denoted by SP. Given: SP = INR 864 Discount = 25% each Let the MP be $x$ According to the question, $x×\frac{100-25}{100}×\frac{100-25}{100}=864$ ⇒ $x×\frac{75}{100}×\frac{75}{100}=864$ ⇒ $\frac{9x}{16}=864$ ⇒ $x=1536$ We know that, Discount = MP –
Question : Directions: In the following question, some parts of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select 'No Error'.
On a holiday (1) / I prefer reading story books (2) / than visiting my friends. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The error lies in the third part of the sentence.
We use "prefer" to say we like one thing or activity more than another, and it can be used as a prepositional phrase with "to" when we compare two things or actions, which in this
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