Staff Selection Commission Combined Graduate Level Exam
Question : Three solid metallic spheres of radii 1 cm, 6 cm, and 8 cm, respectively, are melted and recast into a single solid sphere. The radius of the new sphere formed is:
Option 1: 9.0 cm
Option 2: 5.9 cm
Option 3: 7.7 cm
Option 4: 8.5 cm
Correct Answer: 9.0 cm
Solution : Given: The three original spheres had radii of 1 cm, 6 cm, and 8 cm, respectively. Volume of a sphere $= \frac{4}{3} \pi r^3$ (where $r$ is the radius) The total volume of the three original spheres $=\frac{4}{3} \pi ×1^3 + \frac{4}{3} \pi ×
Question : Directions: In the question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives. A large ___ of angry bisons rampaged through the villages.
Option 1: herd
Option 2: swarm
Option 3: group
Option 4: flock
Correct Answer: herd
Solution : The correct answer is the first option as 'herd' is a collective noun used for 'grazing animals' whereas collective nouns 'swarm' is used for 'bees', and 'flock' is used for 'people, animals and things'.
Therefore, the correct statement should be "A large herd of angry
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 working of the stomach was (1) _____ by a strange accident. In 1822, a man named Alexis St. Martin was (2) _____ hit by a shotgun. The bullet had seriously (3) _____ the chest wall and made a hole in (4)_____ stomach. He was brought to an American army (5) _____ William Beaumont. The doctor saved the patient but he (6) ______ not close the hole properly. Beaumont took it as a (7) ______ opportunity to see the inside of the stomach (8) ______ the hole. He made some wonderful observations. Beaumont (9) ______ that the stomach was churning food. Its wall secreted a fluid (10) ______ could digest the food. He also observed that the end of the stomach opens into the intestine only after the digestion of the food inside the stomach is completed.
Question:
Select the most appropriate option to fill in the blank No. 5
Option 1: Doctor
Option 2: Major
Option 3: Colonel
Option 4: Registrar
Correct Answer: Doctor
Solution : The correct choice is the first option.
Explanation:
William Beaumont was an American army surgeon. As a surgeon and not a ranking officer like a major or colonel, and certainly not a registrar, the correct title for Beaumont in this context is doctor.
Question : Directions: In a certain code language, RAT is coded as 39 and MICE is coded as 30. How will ZEBRA be coded in that language?
Option 1: 53
Option 2: 52
Option 3: 51
Option 4: 50
Correct Answer: 52
Solution : Given: RAT is coded as 39 and MICE is coded as 30.
Add the positional value of RAT, to obtain the required code – R→18; A→1; T→20 Now add the position values = 18 + 1 + 20 = 39 So, RAT is coded as
Question : Thalassemia is a hereditary disease. It affects
Option 1: Blood
Option 2: Spleen
Option 3: Lungs
Option 4: Heart
Correct Answer: Blood
Solution : The correct option is Blood.
Thalassemia is a hereditary (genetic) disorder that affects the blood and haemoglobin synthesis, a protein in red blood cells that transports oxygen throughout the body. There are two forms of thalassemia, each of which is caused by gene mutations: Mutations
Question : Pradhan Mantri Jan Dhan Yojana (PMJDY) - National Mission for Financial Inclusion completed how many years of implementation in 2022?
Option 1: 6 years
Option 2: 9 years
Option 3: 8 years
Option 4: 4 years
Correct Answer: 8 years
Solution : The correct answer is 8 years.
Pradhan Mantri Jan Dhan Yojana (PMJDY)—the National Mission for Financial Inclusion—completed eight years of successful implementation. It was launched by Prime Minister Narendra Modi in 2014. It ensures access to financial services. Direct Benefit Transfers (DBT) via
Question : What theme was decided to celebrate the second 'International Day of Yoga' in India?
Option 1: Yoga for the achievement of the Sustainable Development Goals
Option 2: Yoga for Peace
Option 3: Yoga for Wellness
Option 4: Yoga for Heart
Correct Answer: Yoga for the achievement of the Sustainable Development Goals
Solution : The correct answer is Yoga for the achievement of the Sustainable Development Goals.
"Yoga for the achievement of the Sustainable Development Goals" was the topic of the second International Day of Yoga. Over 30,000 people attended
Question : Directions: Which answer figure will complete the pattern in the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : On comparing the question figure and all the answer figures, the following figure will combine and make the complete pattern –
Hence, the second option is correct.
Question : The radius of a spherical balloon is inflated from 7 cm to 10.5 cm. The percentage increase in its surface area is:
Option 1: 150%
Option 2: 125%
Option 3: 120%
Option 4: 135%
Correct Answer: 125%
Solution : Given: Radius = 7 cm New radius = 10.5 cm Surface area of sphere = $4\pi r^2$ Surface area of old radius = $4\pi r^2$ = $4\pi \times7^2$ = $4\pi \times49$ = $196\pi$ Surface area of new radius = $4\pi r^2$ = $4\pi \times(10.5)^2$ =
Question : Directions: Based on the position in the English alphabetical order, three of the following letter clusters are alike in some manner and one is different. Select the odd letter cluster.
Option 1: IGMJ
Option 2: SPVT
Option 3: DBHE
Option 4: NLRO
Correct Answer: SPVT
Solution : Let's check the options – First option: IGMJ→I – 2 = G; G + 6 = M; M – 3 = J Second option: SPVT→S – 3 = P; P + 6 = V; V – 2 = T Third option: DBHE→D – 2 =
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