Staff Selection Commission Combined Higher Secondary Level Exam
Question : Comprehension: In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank. Data 1._______ the Pioneer spacecraft of NASA apparently prove the theory that the high surface temperature of Venus is 2.______ to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide. Such a greenhouse 3.______ is created when energy in the form of sunlight easily passes through a planet's atmosphere, warms its 4.____ and is converted to heat radiation that is then held in by the atmosphere from top to bottom. Venus has a relatively thin atmosphere like the Earth's, but Venus' atmosphere consists of more than ninety percent carbon dioxide, compared to less than four percent in that of the 5.____ Select the most appropriate option to fill in the blank No. 2.
Option 1: because
Option 2: due
Option 3: understood
Option 4: cause
Correct Answer: due
Solution : The second option is correct.
The word due implies a direct cause-and-effect relationship between two factors.
In the context provided about Venus' high surface temperature, using due in the sentence might suggest that the high surface temperature is a direct consequence solely attributed to the
Question : Ravi initially had a certain number of chocolates, while Bhanu initially had 80% of the number of chocolates that Ravi initially had. Ravi gave 10% of his chocolates to his sister, while Bhanu received from his uncle another 35% of the number of chocolates he initially had. If Bhanu finally had 54 chocolates, how many chocolates did Ravi give to his sister?
Option 1: 3
Option 2: 6
Option 3: 5
Option 4: 4
Correct Answer: 5
Solution : Let the number of chocolates with Ravi be $x$. Given: The total number of chocolates with Bhanu at last = 54 Then, the number of chocolates with Bhanu = $0.8x$ The number of chocolates Ravi gave to his sister = $0.1x$ Number of chocolates with
Question : The fastest, costlier and relatively small form of storage managed by computer system hardware is:
Option 1: Disk
Option 2: Flash memory
Option 3: Main memory
Option 4: Cache
Correct Answer: Cache
Solution : The correct answer is Cache.
The fastest system memory is cache memory, which is necessary to keep up with the CPU as it fetches and executes instructions. Cache memory houses the information that the CPU uses the most frequently. The registers, which make up
Question : If $\sec x+\cos x=\frac{5}{2}$, where $x$ lies between $0^{\circ}$ and $90^{\circ}$, then what is the value of $\sin ^2 x$ ?
Option 1: $\frac{3}{4}$
Option 2: $\frac{1}{2}$
Option 3: $1$
Option 4: $\frac{1}{4}$
Correct Answer: $\frac{3}{4}$
Solution : Given: $\sec x + \cos x = \frac{5}{2}$ Now, $\cos\theta = \frac{1}{\sec\theta}$ ⇒ $\frac{1}{\cos x} + \cos x = \frac{5}{2}$ The above equation satisfies for $x = 60^\circ$ Thus, $\sin^2x = \sin^2 60^\circ= (\frac{\sqrt3}{2})^2$ $\therefore \sin^2x = \frac{3}{4}$ Hence, the correct answer is $\frac{3}{4}$.
Question : What are the last three digits of the multiplication 654321 × 123456?
Option 1: 376
Option 2: 344
Option 3: 324
Option 4: 352
Correct Answer: 376
Solution : To find the last three digits of a product, we can ignore the first two digits and multiply the remaining digits. Ignoring the first two digits of 654321 and 123456, we have 321 × 456. Multiplying these digits, we get 146376. Hence, the correct answer
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".
You can play video games and paint or (draw) from anywhere.
(1) be drawing
(2) can draw
(3) could draw
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct choice is the fourth option, No improvement.
The verb form used is correct in the sentence and conveys the intended meaning.
Question : Choose the word that means the same as the given word. Shapeless
Option 1: Amorphous
Option 2: Amortization
Option 3: Amoral
Option 4: Amorous
Correct Answer: Amorphous
Solution : The correct choice is the first option.
Shapeless means not having a clear shape. Amorphous is an appropriate synonym, as it denotes having no fixed form or shape.
The meaning of the other options is:
Question : Directions: In a certain code language, Z + B means Z is the mother of B, Z – B means Z is the brother of B, Z @ B means Z is the sister of B, Z # B means Z is the father of B. If D – E # F – G, then how is D related to G?
Option 1: Father's father
Option 2: Father's brother
Option 3: Son
Option 4: Brother
Correct Answer: Father's brother
Solution : Given: D – E means D is the brother of E, F – G means F is the brother of G, E # F means E is the father of F.
As per the given information, the family tree will be as follows –
Question : Ganga Dussehra every year on the ______ day of Shukla Paksha of Jyeshtha month.
Option 1: 6th
Option 2: 8th
Option 3: 10th
Option 4: 12th
Correct Answer: 10th
Solution : The correct answer is 10th.
Ganga Dussehra happens every year on the 10th day (Dashami) of the Shukla Paksha (waxing phase of the moon) of the Jyeshtha month in the Hindu calendar. This festival is dedicated to the worship of the Ganges River and
Question : Directions: Select the option figure in which the given figure is embedded. (rotation is NOT allowed)
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, the given question figure is embedded only in the first option figure.
Hence, the first option is correct.
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