Staff Selection Commission Combined Graduate Level Exam
Question : If a 7-storey building has a 28 m long shadow, the number of storeys of the building whose shadow is 48 m long is:
Option 1: 14
Option 2: 24
Option 3: 16
Option 4: 12
Correct Answer: 12
Solution : Length of shadow of a 7-storey building = 28 m Let the number of stories of the building with a 48 m long shadow be $x$. During the same time of the day, the sun shall cast proportional shadows on all the objects, Hence, $\frac{7}{28}=\frac{x}{48}$
Question : An egg sinks in a soft water but floats in a concentrated solution of salt because:
Option 1: egg absorbs salt from the solution and expands.
Option 2: albumin dissolves in a salt solution and the egg becomes lighter.
Option 3: the density of the salt solution exceeds the density of eggs.
Option 4: water has high surface tension
Correct Answer: the density of the salt solution exceeds the density of eggs.
Solution : The correct answer is the density of salt solution exceeds the density of eggs.
Any substance floats over or sinks into the liquid substance because of the density difference. When the substance has a lower
Question : Which of the statements given above are not correct?
A. The author of the novel 'Bird Box' is Victor LaValle.
B. The author of the novel 'The Devil in Silver' is Josh Malerman.
C. The author of the novel 'Fellside' is Victor LaValle.
Option 1: A and B
Option 2: B and C
Option 3: A and C
Option 4: A, B and C
Correct Answer: A, B and C
Solution : The incorrect statements are A, B and C.
Bird Box is a novel written by Josh Malerman and published in 2014. It is about a woman. The author of the novel The Devil in Silver is Victor Lavalle. It was published in
Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. 463, 452, 439, 424, ?
Option 1: 407
Option 2: 413
Option 3: 419
Option 4: 411
Correct Answer: 407
Solution : Given: 463, 452, 439, 424, ?
In the given series, subtract consecutive odd numbers from the previous term to obtain the next term. 463 – 11 = 452; 452 – 13 = 439; 439 – 15 = 424; 424 – 17 = 407
So, 407
Question :
Directions: In the following question, select the related word from the given alternatives. Cotton : White :: Coal : ?
Option 1: Fire
Option 2: Mine
Option 3: Wood
Option 4: Black
Correct Answer: Black
Solution : Given: Cotton : White :: Coal : ?
The colour of cotton is white. Similarly, the colour of coal is black.
Hence, the fourth option is correct.
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear closer to the mirror in reflection. According to the information provided, if the mirror is placed on the right side of the figure (on line MN), the right of the reflected image will appear as the left, and
Question : The following graph shows the number of illiterates in different states of a country in the year 2021. Total illiterates in 4 states = 4,50,000 What is the percentage of the total number of illiterates in A, B, and C to the illiterates in D in 2021?
Option 1: 126.78%
Option 2: 127.27%
Option 3: 150.57%
Option 4: 110.24%
Correct Answer: 127.27%
Solution : The total percentage of illiterates in D= 44 % Percentage of rest of illiterates = 56% $\therefore$ Percentage of the total number of illiterates in A, B, and C to the illiterates in D in 2021 = $\frac{56}{44}\times 100$ = 127.27% Hence, the correct answer
Question : According to Census 2001, the sex ratio is ___________ females per 1000 males.
Option 1: 943
Option 2: 923
Option 3: 933
Option 4: 913
Correct Answer: 933
Solution : The correct answer is 933.
As of the 2001 Census of India, the sex ratio was reported to be 933 females per 1000 males. This figure indicates the number of females for every 1000 males in the population. The sex ratio is an important demographic
Question : Which one of the following is not a property of electromagnetic waves?
Option 1: Electromagnetic waves do not show interference and diffraction.
Option 2: Osillating electric field and magnetic field are perpendicular to each other.
Option 3: Electromagnetic waves are transverse waves.
Option 4: Electromagnetic waves do not require a medium to propagate.
Correct Answer: Electromagnetic waves do not show interference and diffraction.
Solution : The correct option is Electromegnetic waves do not show interference and diffraction.
Electromagnetic waves, like light, demonstrate both interference and diffraction. Interference arises from the interaction of two or more waves, leading to patterns of constructive and
Question : The authorities of which country denied the permission to land the ship Komagata Maru, carrying Indians?
Option 1: New Zealand
Option 2: America
Option 3: Australia
Option 4: Canada
Correct Answer: Canada
Solution : The correct option is Canada.
This incident refers to the year 1914. The passengers on the ship were mostly Sikh immigrants. Komagata Maru is a Japanese steamship. In this incident, people from British India tried to enter Canada, but they were prohibited, and they returned
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