Staff Selection Commission Sub Inspector Exam
Question : 1 kilowatt is equivalent to:
Option 1: 3600 KJ/h
Option 2: 3600 calorie
Option 3: 7200 KJ/h
Option 4: 7200 Joule
Correct Answer: 3600 KJ/h
Solution : The correct answer is 3600 KJ/h.
1 kilowatt is equivalent to 3600 kJ/h. This conversion is based on the definition that 1 kilowatt-hour (kWh) is equal to 3600 kilojoules (kJ). It represents the amount of energy consumed or produced by a 1-kilowatt device in
Question : Who co-invented the device called Cyclotron in 1934 along with Ernest Lawrence to investigate the nuclear structure?
Option 1: Joseph John Thomson
Option 2: Ernest Rutherford
Option 3: Milton Stanley Livingston
Option 4: Enrico Fermi
Correct Answer: Milton Stanley Livingston
Solution : The correct answer is Milton Stanley Livingston.
American accelerator physicist Milton Stanley Livingston shared co-invention credit for the cyclotron with Ernest Lawrence and co-discovered the strong focusing principle with Ernest Courant and Hartland Snyder, which paved the way for the creation of large-scale
Question : Which of the following is used to make lightweight but strong plastic?
Option 1: Nylon
Option 2: Polythene
Option 3: Polyvinyl chloride
Option 4: Methyl methacrylate
Correct Answer: Nylon
Solution : The correct option is Nylon.
Nylon is used to create polymers that are both lightweight and strong. It is a polyamide (chemical formula: (C12H22N2O2)n a synthetic polymer that is widely employed in a variety of
Question : Comprehension: Read the given passage and answer the questions that follow. It is not an exaggeration to say that the question of where and when the Black Death, the deadliest pandemic ever, originated is one of the biggest mysteries in human history. After all, the Black Death was the first wave of the second plague pandemic of the 14th to early 19th centuries. It killed some 50-60% of the population in Europe, the Middle East and North Africa and an unaccountable number of people in Central Asia. Different proposals, based on competing theories, have been put forward. But in 2017, I came across some records describing an intriguing medieval cemetery in Kara-Djigach, Chüy Valley, northern Kyrgyzstan, which I suspected may hold the key. As part of a multidisciplinary team co-led by Maria Spyrou at the University of Tubingen, we have now investigated several specimens from individuals buried at that site – and come up with an answer. The idea that the Black Death originated in the east – territories overlapping, roughly speaking, Central Asia, Mongolia and China – dates back to the contemporaries of the pandemic in Europe and the Islamic world. The modern, academic Chinese origin theory dates back to at least 1756-8 and a publication about the history of Central Asia by French scholar Joseph de Guignes. How does the passage describe the Black Death?
Option 1: The first wave of the second plague pandemic
Option 2: The worst specimen of human created tragedy
Option 3: The specimen of human evolution and its evidence
Option 4: The initiator of all the future pandemics
Correct Answer: The first wave of the second plague pandemic
Solution : The correct choice is the first option.
The passage describes the Black Death as the first wave of the second plague pandemic. The passage specifically mentions that the Black Death was the first wave of the second
Question : Directions: If + means –, – means ×, × means ÷ and ÷ means +, then what will be the value of the following expression? 25 – 2 + 32 × 8 ÷ 4 = ?
Option 1: 51
Option 2: 45
Option 3: 55
Option 4: 50
Correct Answer: 50
Solution : Given: + means –, – means ×, × means ÷ and ÷ means + 25 – 2 + 32 × 8 ÷ 4 = ?
After interchanging the given mathematical signs, the equation becomes – 25 × 2 – 32 ÷ 8 + 4 25
Question : Select the most appropriate synonym of the word ‘viable’ in the given sentence and choose the correct option. The engineer’s design was optimised for efficiency and scalability, with a focus on sustainability.
Option 1: Efficiency
Option 2: Optimised
Option 3: Scalability
Option 4: Sustainability
Correct Answer: Sustainability
Solution : The correct choice is the fourth option.
Sustainability is the ability to be maintained over the long term without causing harm to the environment or depleting resources, and it aligns with the concept of viability. The meanings of the other options are as follows:
Question : With which two countries does India share land boundaries in the northwest?
Option 1: Pakistan and Afghanistan
Option 2: China and Nepal
Option 3: Myanmar and Bangladesh
Option 4: Sri Lanka and Maldives
Correct Answer: Pakistan and Afghanistan
Solution : The correct option is Pakistan and Afghanistan.
India has seven nations within its territorial borders. China, Nepal, and Bhutan are in the north; Pakistan and Afghanistan are in the northwest; and Myanmar and Bangladesh are in the east. The Radcliffe Line is the
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 number.
The Amazon is the world’s largest tropical rainforest. It is (1)______ the size of the continent of Australia and covers (2)______ area of nearly 2.8 million square miles. The Amazon rainforest gets its life from the (3)______ Amazon River which runs through the heart (4)______ the region. The rainforest is simply the drained basin for the river and its (5)______. The vast forest consists of four layers, each featuring its own ecosystems and specially adapted plants and animals. Question: Select the most appropriate option to fill in the blank no. 4.
Option 1: on
Option 2: of
Option 3: at
Option 4: in
Correct Answer: of
Solution : The correct choice is the second option.
Explanation: In this context, the correct preposition is of. The Amazon River runs through the heart of the region, indicating a spatial movement within the area. So, the corrected sentence would be: The Amazon rainforest gets
Question : Directions: Hari remembers that his father's birthday is between the 13th and 16th of June, whereas his sister remembers that their father's birthday is between the 14th and 18th of June. On which day is their father's birthday, which both agree?
Option 1: 14th June
Option 2: 15th June
Option 3: 16th June
Option 4: 17th June
Correct Answer: 15th June
Solution : According to the given information, Hari remembers that his father's birthday is between the 13th and 16th of June. Therefore, according to Hari, his father's birthday is on – the 14th or 15th of June.
His sister remembers that their father's birthday is between
Question : The colour of the plants is green due to the presence of:
Option 1: Urea
Option 2: Carbon dioxide
Option 3: Chlorophyll
Option 4: Oxygen
Correct Answer: Chlorophyll
Solution : The correct option is chlorophyll.
Chlorophyll is the pigment that gives plants their distinctive green hue. A family of pigments known as chlorophyll is essential to photosynthesis, the process by which plants, algae, and certain microorganisms transform light energy into chemical energy for the
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