Staff Selection Commission Combined Graduate Level Exam
Question : Which blood group is universal acceptor ?
Option 1: O+
Option 2: O-
Option 3: AB-
Option 4: AB+
Correct Answer: AB+
Solution : The correct option is AB+.
Individuals with blood type AB positive (AB+) are commonly referred to as the "universal acceptor" since they can receive blood from donors of any ABO and Rh blood type without experiencing a serious immunological reaction. This is because their
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.
A partial victory is sometimes all we can hope to _______.
Option 1: gain
Option 2: lose
Option 3: suffer
Option 4: reward
Correct Answer: gain
Solution : The first option is the correct answer.
Gain: To acquire or obtain something, often with a positive outcome.
Lose: To misplace or no longer possess something, typically resulting in a negative outcome.
Suffer: To experience pain, distress, or hardship.
Reward: A positive outcome
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%
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