RRB NTPC Previous Year Paper 02 — Kerala PSC PYQ Practice with Answers

Correct answer (Option B):\nThe sentence begins with the main subject, which is "the climate of India" (Q). This subject is followed by the verb phrase "comprises of a wide range of" (S). Then, the object "weather conditions across a vast geographic" (P) completes the core meaning, which is further qualified by the phrase describing spatial scale and surface features "scale and varied topography" (R). Putting these elements together in the order Q-S-P-R forms a cohesive, grammatically correct statement: "The climate of India comprises of a wide range of weather conditions across a vast geographic scale and varied topography."\n\nWhy others are wrong:\nOption A starts with S ("comprises of..."), leaving the verb without its main identifying subject. Option C arranges the segments as P-Q-R-S, which places the descriptive prepositional phrases before the main noun and cuts off the verb at the very end. Option D uses Q-R-P-S, which incorrectly separates the geographical scale modifier from its noun phrase and incorrectly appends the main verb structure to the end of the sentence.\n\nStudy tip:\nWhen resolving sentence rearrangements, always find the primary subject and its verb first. Linking modifiers to the nouns they describe will quickly eliminate incorrect option sequences.

Correct answer (Option D):\nThe question tests analogy based on collective nouns. An "army" is a structured collection or collective group composed of "soldiers". Following the identical logical relationship, a collective group of "musicians" who perform together is explicitly referred to as a "band". Therefore, the word "BAND" correctly completes the analogy to match the collective structural pattern established by the initial pair.\n\nWhy others are wrong:\nOption A is incorrect because "flock" is the standard collective noun used for birds or sheep, not humans. Option B is incorrect because "gang" typically describes an organized group of criminals or laborers. Option C is incorrect because "colony" refers to a group of ants, termites, or badgers, and does not relate to musical performers.\n\nStudy tip:\nCollective nouns are frequently tested in verbal analogies. Review standard groupings for animals, professions, and common objects to quickly solve these relationships.

Correct answer (Option A):\nWhen a computer system is switched on, the hardware executes a preliminary power-on self-test followed by initializing the system sequence. The specific process where the computer hardware loads the operating system core files from the secondary storage device (like a hard disk drive or solid-state drive) into the main random-access memory (RAM) is called "Booting". This enables the operating system to take control of resources and establish the user environment.\n\nWhy others are wrong:\nOption B refers to fetching, which is the specific internal CPU cycle step of retrieving an individual instruction from memory. Option C represents processing, which is the general execution of instructions by the central processing unit. Option D signifies multi-processing, which is the concurrent operation of two or more processors within a single computer system.\n\nStudy tip:\nBooting can be categorized into cold booting (starting from a completely powered-off state) and warm booting (restarting an already active system without losing main line power).

Correct answer (Option A):\nKailash Satyarthi is an Indian children's rights activist who was awarded the Nobel Prize for Peace in 2014. He received this global recognition for his continuous, dedicated struggle against the suppression of children and young people, and for securing the right of all children to education. He founded the Bachpan Bachao Andolan in 1980 and has liberated tens of thousands of children from forced labor and commercial exploitation.\n\nWhy others are wrong:\nOption B is incorrect because Malala Yousafzai, who jointly shared the 2014 Nobel Peace Prize with Kailash Satyarthi, is a Pakistani activist, not an Indian citizen. Options C and D are incorrect because Sanjiv Chaturvedi and Anshu Gupta are noted public figures who won the prestigious Ramon Magsaysay Award in 2015, not the Nobel Prize.\n\nRemember:\nKailash Satyarthi shared the 2014 Nobel Peace Prize with Malala Yousafzai. Nobel laureates from India or of Indian origin are highly frequent topics in competitive examinations.

Correct answer (Option B):\nLet the three numbers be defined using a common multiplier x as 2x, 3x, and 5x.\nAccording to the problem statement, twice the sum of these three numbers equals 100.\n\nEquation: 2 × (2x + 3x + 5x) = 100\nStep 1: 2 × 10x = 100\nStep 2: 20x = 100\nStep 3: x = 100 / 20 = 5\n\nNow, evaluate the three original numbers:\nFirst number = 2 × 5 = 10\nSecond number = 3 × 5 = 15\nThird number = 5 × 5 = 25\n\nThe largest of the three numbers is 25.\nCalculating the square of this largest number:\nSquare = 25² = 625\n\nOption B matches this evaluated result.\n\nWhy others are wrong:\nOption A represents 15², which is the square of the middle number instead of the largest number. Option C represents 25, which is the linear value of the largest number itself rather than its squared value. Option D corresponds to 10², which is the square of the smallest number in the sequence.\n\nStudy tip:\nAlways read the final line of math problems carefully to confirm whether the question demands the value of the variable, the actual number, or an exponential function like a square or cube.