Staff Selection Commission Combined Graduate Level Exam
Question : Select the option that can be used as a one-word substitute for the given group of words. Never changing, and therefore boring.
Option 1: Outdated
Option 2: Impractical
Option 3: Idealistic
Option 4: Monotonous
Correct Answer: Monotonous
Solution : The correct choice is the fourth option.
Monotonous means lacking in variety and interest, being repetitive and dull, which precisely describes the concept of never changing and being boring.
The meanings of other options are as follows:
Outdated: This term refers to something
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
Two of the biggest corporate firms in the world are Apple and IBM (which both are) in the computer business.
(1) which are both
(2) both of which are
(3) which are
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct choice is the second option.
Explanation:
"Both of which are" is the most appropriate choice for the context, providing a clear and idiomatic way to express the idea that both Apple and IBM are in the computer business.
So, the correct sentence would
Question : A train 180 m long moving at a speed of 20 m/sec overtakes a man moving at a speed of 10 m/sec in the same direction. The train passes the man in:
Option 1: 6 sec
Option 2: 9 sec
Option 3: 18 sec
Option 4: 27 sec
Correct Answer: 18 sec
Solution : Distance = length of train = 180 m Speed of train = 20 m/s Speed of main = 10 m/s The direction of both the train and the man is the same. So, relative speed = 20 - 10 = 10 m/s Required time
Question : $\triangle \mathrm{ABC} \sim \triangle \mathrm{DEF}$ and the perimeters of these triangles are 32 cm and 12 cm, respectively. If $\mathrm{DE}=6 \mathrm{~cm}$, then what will be the length of AB?
Option 1: 16 cm
Option 2: 14 cm
Option 3: 12 cm
Option 4: 18 cm
Correct Answer: 16 cm
Solution : If two triangles are similar, then their perimeters are directly proportional to the length of their corresponding sides. So, $\frac{\text{Perimeter of $\triangle$ABC}}{\text{Perimeter of $\triangle$ABC}}= \frac{AB}{DE} = \frac{32}{12}$ ⇒ $AB = \frac{32}{12}\times 6$ ⇒ $AB = 16\ \mathrm{cm}$ Hence, the correct answer is 16 cm.
Question : If $a+\frac{1}{a-2}=4$, then the value of $(a-2)^{2}+(\frac{1}{a-2})^{2}$ is:
Option 1: 0
Option 2: 2
Option 3: –2
Option 4: 4
Correct Answer: 2
Solution : Given: $a+\frac{1}{a-2}=4$ Subtracting 2 from both sides, ⇒ $a-2+\frac{1}{a-2}=2$ Squaring both sides, ⇒ $( a-2)^2+\frac{1}{( a-2)^2} + 2=2^2$ ⇒ $( a-2)^2+\frac{1}{( a-2)^2}=2^2-2$ ⇒ $( a-2)^2+\frac{1}{( a-2)^2}=2$ Hence, the correct answer is 2.
Question : The Rourkela steel plant was set up in collaboration with Germany in which the state of India?
Option 1: Jharkhand
Option 2: Bihar
Option 3: Assam
Option 4: Odisha
Correct Answer: Odisha
Solution : The correct option is Odisha.
One of India's biggest steel production sites is the Rourkela Steel Plant. It is located in the city of Rourkela in the Sundargarh district of Odisha. One of India's earliest integrated steel factories, the Rourkela Steel Plant was founded in
Question : In a 1500 m race, Anil beats Bakul by 150 m, and in the same race, Bakul beats Charles by 75 m. By what distance does Anil beat Charles?
Option 1: 217.50 m
Option 2: 200.15 m
Option 3: 293.50 m
Option 4: 313.75 m
Correct Answer: 217.50 m
Solution : In 1500 m race, Anil beats Bakul by 150 m. When Anil completes the race, Bakul covers 1500 – 150 = 1350 m Bakul beats Charles by 75 m in 1500 m race. So in a 1350 m race, Bakul is ahead of Charles
Question : Select the correct passive form of the given sentence.
May you achieve success in all your endeavours.
Option 1: May success will be achieved by you in all your endeavours.
Option 2: Success might be achieved by you in all your endeavours.
Option 3: May success be achieved by you in all your endeavours.
Option 4: Success has been achieved by you in all your endeavours.
Correct Answer: May success be achieved by you in all your endeavours.
Solution : The correct choice is the third option.
Explanation: In a passive voice construction, the subject of the sentence receives the action, and the focus is on the action rather than the doer. The verb "achieve" becomes
Question : If $4x^2-12x+k$ is a perfect square, then the value of $k$ is:
Option 1: 2
Option 2: 9
Option 3: 12
Option 4: 10
Correct Answer: 9
Solution : Given: $4x^2-12x+k$ is a perfect square. $4x^2-12x+k=(2x)^2-2×2x×3+k$ Since this a perfect, So, $(2x)^2-2×2x×3+k=(2x)^2-2×2x×3+3^2=(2x–3)^2$ Value of $k$ is 32 = 9 Hence, the correct answer is 9.
Question : Which among the following rocks may contain fossils of plants, animals and other microorganisms that once lived on them?
Option 1: Metamorphic rocks
Option 2: Intrusive igneous rocks
Option 3: Sedimentary rocks
Option 4: Extrusive igneous rocks
Correct Answer: Sedimentary rocks
Solution : The correct option is Sedimentary rocks.
The type of rock that may contain fossils of plants, animals, and other microorganisms that once lived on or in them is called sedimentary rock. Sedimentary rocks are formed from the accumulation and cementation of sediments, which
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