Staff Selection Commission Combined Graduate Level Exam
Question : Directions: By interchanging the given two signs and numbers which of the following equations will be not correct? × and ÷, 2 and 6 I. 7 – 4 × 3 ÷ 6 + 2 = 8 II. 6 – 8 × 2 + 9 ÷ 3 = 5
Option 1: Only II
Option 2: Neither I nor II
Option 3: Only I
Option 4: Both I and II
Correct Answer: Both I and II
Solution : Given: I. 7 – 4 × 3 ÷ 6 + 2 = 8 II. 6 – 8 × 2 + 9 ÷ 3 = 5
Let's check each equation after interchanging signs and numbers according to the instructions. On interchanging the signs
Question : Which among the following statements about judicial review in India are correct? A. Judicial review means that the courts of law have the power to test the validity of legislative as well as other governmental actions concerning the provisions of the Constitution. B. Under Article 23 of the Indian Constitution, the compulsion of judicial review was described in the Fundamental Rights in Part III. C. The power of judicial review is significantly vested in the High Courts and the Supreme Court of India.
Option 1: A and B only
Option 2: B and C only
Option 3: A and C only
Option 4: A, B and C
Correct Answer: A and C only
Solution : The correct answer is A and C only.
Judicial review refers to the judiciary's authority to interpret the Constitution and nullify any law or executive order it finds to violate the Indian Constitution.
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
When Albert stayed at the African jungle, (1) / he chose to put up with many inconveniences, such as (2) / wild animals and poisonous insects. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
Explanation: The preposition at should be replaced with the preposition in when referring to the jungle as the jungle is a vast expanse and not a specific place.
So, the correct sentence would be:
Question : Select the option that is similar in meaning to the underlined word. He gave a concise explanation of the company's retirement plan.
Option 1: Clear
Option 2: Verbose
Option 3: Terse
Option 4: Sharp
Correct Answer: Terse
Solution : The third option is correct.
Concise means giving a lot of information clearly and in a few words; it's brief but comprehensive. Terse also means using few words and often seeming rude or unfriendly because you are not saying very much, which is similar to
Question : Which German chemist and physicist proposed that an aromatic compound must have an odd number of pairs of electrons, Which can mathematically be written as 4n+2 (n=0,1,2,3, etc.) in 1931?
Option 1: Friedrich Kekule
Option 2: Rosalind Franklin
Option 3: Erich Huckel
Option 4: Antoine Lavoisier
Correct Answer: Erich Huckel
Solution : The correct option is Erich Huckel.
German scientist and physicist Erich Huckel put up a theory in 1931 to assist in identifying whether an aromatic property would be present in a planar ring molecule. According to his rule, an aromatic, cyclic, planar molecule
Question : Directions: Attack is related to Defence in the same way as Accept is related to ______. (The words must be considered meaningful English words and must NOT be related to each other based on the number of letters/number of consonants/vowels in the word.)
Option 1: Refuse
Option 2: Welcome
Option 3: Receive
Option 4: Gain
Correct Answer: Refuse
Solution : Given: Attack is related to Defence.
Like, Defence is the antonym of Attack. Similarly, the Antonym of Accept is Refuse.
Hence, the first option is correct.
Question : Three circles of radius 6 cm are kept touching each other. The string is tightly tied around these three circles. What is the length of the string?
Option 1: $36 + 12\pi\ \text{cm}$
Option 2: $36 + 18\pi\ \text{cm}$
Option 3: $24 + 36\pi\ \text{cm}$
Option 4: $36 + 20\pi\ \text{cm}$
Correct Answer: $36 + 12\pi\ \text{cm}$
Solution : The length of the string not in contact with the circle = $2r+2r+2r=6r=6\times6=36$ By symmetry, the angle swiped by the string on one circle = $120^\circ$ Length of the string touching circle = $\frac{2\pi r}{3}+\frac{2\pi r}{3}+\frac{2\pi r}{3}=\frac{6\pi r}{3} = 2\pi r$ $=2\pi
Question : Which law was based on notes of the music?
Option 1: Newton law
Option 2: Law of octaves
Option 3: Mendeleev law
Option 4: Modern periodic law
Correct Answer: Law of octaves
Solution : The correct option is the Law of octaves.
The "Law of Octaves" in the context of chemistry was a concept that drew an analogy to the musical scale. In the Law of Octaves, Mendeleev noted that when elements were arranged by increasing
Question : The circumference of the two circles is 308 cm and 440 cm, respectively. What is the difference between their radii?
Option 1: 21 cm
Option 2: 49 cm
Option 3: 35 cm
Option 4: 14 cm
Correct Answer: 21 cm
Solution : Let the radius of the first circle be $r_1$. Circumference of the first circle $=2\pi r{_1}$ ⇒ $308 = 2×\frac{22}{7}×r{_1}$ ⇒ $r_1$ = 49 cm Let the radius of the 2nd circle be $r_2$. Circumference of the 2nd circle $=2\pi r{_2}$ ⇒ $440 =
Question : Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. 4, 12, 48, 240, 1440, ?
Option 1: 7620
Option 2: 10080
Option 3: 6200
Option 4: 10020
Correct Answer: 10080
Solution : Given: 4, 12, 48, 240, 1440, ?
Multiply the numbers of the given series by consecutive natural numbers starting from 3. 4 × 3 = 12; 12 × 4 = 48; 48 × 5 = 240; 240 × 6 = 1440; 1440 × 7 =
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