Staff Selection Commission Combined Graduate Level Exam
Question : Select the most appropriate ANTONYM of the underlined word. The professor's lectures are very conventional and tedious.
Option 1: engaging
Option 2: informative
Option 3: idle
Option 4: boring
Correct Answer: engaging
Solution : The right choice is the first option
Explanation:
Question : In plant- water relationships, symbol 'Yw' is used to represent:
Option 1: Osmotic pressure
Option 2: Water potential
Option 3: Solute potential
Option 4: Osmosis
Correct Answer: Water potential
Solution : The correct option is Water potential
The sign 'Yw' is used in plant-water connections to denote a plant's or plant tissue's water potential. Water potential (Yw) is a measure of the potential energy of water in a system that takes solute concentration, pressure, and
Question : In 1962, who published The History of Ocean Basins which outlined the theory of how tectonic plates could move, later called 'sea floor spreading'?
Option 1: George Edward Backus
Option 2: Alfred Wegener
Option 3: Louis Hopewell Bauer
Option 4: Harry Hammond Hess
Correct Answer: Harry Hammond Hess
Solution : The correct option is Harry Hammond Hess.
Harry Hammond Hess is an American geologist known for presenting the unifying theory of plate tectonics. In 1962, he published a paper, The History of Ocean Basins, which outlined the theory of how tectonic plates
Question : Three fractions $x, y$ and $z$ are such that $x > y > z$. When the smallest of them is divided by the greatest, the result is $\frac{9}{16}$, which exceeds $y$ by 0.0625. If $x+y+z=2 \frac{3}{12}$, then what is the value of $x + z$?
Option 1: $\frac{5}{4}$
Option 2: $\frac{3}{4}$
Option 3: $\frac{7}{4}$
Option 4: $\frac{1}{4}$
Correct Answer: $\frac{7}{4}$
Solution : Given: $x > y > z$ According to the question, $\frac{z}{x} = \frac{9}{16}$ ⇒ $y = \frac{9}{16}-0.0625=\frac{9}{16}-\frac{1}{16} = \frac{1}{2}$ ⇒ $x+y+z=2 \frac{3}{12}=\frac{27}{12}$ ⇒ $x + \frac{1}{2} + z = \frac{27}{12}$ $\therefore x + z = \frac{27}{12} - \frac{1}{2}= \frac{27-6}{12}= \frac{21}{12}= \frac{7}{4}$ Hence, the correct answer
Question : Directions: A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given folded paper is unfolded, it will look like –
Hence, the second option is correct.
Question : The value of $\cos^{2}30^{\circ}+\sin^{2}60^{\circ}+\tan^{2}45^{\circ}+\sec^{2}60^{\circ}+\cos0^{\circ}$ is:
Option 1: $4\frac{1}{2}$
Option 2: $5\frac{1}{2}$
Option 3: $6\frac{1}{2}$
Option 4: $7\frac{1}{2}$
Correct Answer: $7\frac{1}{2}$
Solution : $\cos^{2}30^{\circ}+\sin^{2}60^{\circ}+\tan^{2}45^{\circ}+\sec^{2}60^{\circ}+\cos0^{\circ}$ $=(\frac{\sqrt3}{2})^2 + (\frac{\sqrt3}{2})^2 + 1 + (2)^2 + 1$ $=\frac{3}{4} + \frac{3}{4} + 1 + 4 + 1$ $=\frac{6}{4} + 6$ $ = \frac{3}{2} + 6 $ $= \frac{15}{2}$ $=7\frac{1}{2}$ Hence, the correct answer is $7\frac{1}{2}$.
Question : The base of a right pyramid is a square of side $8 \sqrt{2}$ cm and each of its slant edges is of length 10 cm. What is the volume (in cm$^3$) of the pyramid?
Option 1: $256$
Option 2: $224$
Option 3: $426 \frac{2}{3}$
Option 4: $96 \sqrt{2}$
Correct Answer: $256$
Solution : Given: The base of a right pyramid is a square of side = $8\sqrt{2}$ cm and slant edge = 10 cm. DP = Half of the diagonal of the square ⇒ DP = $\frac{1}{2} \times [\sqrt 2\times 8\sqrt 2] = 8$ cm Now, In a
Question : From 1980 to 1990, the population of the country increased by 20%. From 1990 to 2000, the population of the country increased by 20%. Over 2000-2010, the population of the country increased by 20%. Then, the overall increased population (in percentage) of the country from 1980 to 2010 was:
Option 1: 72.2%
Option 2: 60%
Option 3: 72.8%
Option 4: 62.8%
Correct Answer: 72.8%
Solution : For the first two increases of 20% and 20%, The equivalent increase = (20 + 20 + $\frac{20×20}{100}$)% = (40 + 4)% = 44% increase So, from 1980 to 2000, the population increase was 44% From 1980 to 2010, the increase was 44% and 20%
Question : A man takes 15 minutes to row 16 km downstream, which is 25% less than the time he takes to row the same distance upstream. How many kilometres can the man row in an hour in still water? (Rounded off to the nearest whole number)
Option 1: 56
Option 2: 60
Option 3: 58
Option 4: 54
Correct Answer: 56
Solution : Given: A man takes 15 minutes to row 16 km downstream. 15 minutes $= \frac{15}{60}=\frac{1}{4}$ hours Downstream speed $= \frac{16}{\frac{1}{4}} = 64$ km/h Man takes 25% more time in upstream, So, upstream speed = $64×\frac{75}{100}=48$ km/h Speed of boat in still water = $\frac{64+48}{2}=56$ km/h
Question : In which of the following game, ball is not used ?
Option 1: Football
Option 2: Cricket
Option 3: Badminton
Option 4: Tennis
Correct Answer: Badminton
Solution : The correct answer is Badminton.
Badminton is a racquet sport played using racquet and shuttle cock. India's most famous badminton player is P.V. Sindhu.
Additional information-
In the 32nd edition of the Thomas Cup in 2022, India's men's badminton team defeated 14-time champion Indonesia 3-0
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