Staff Selection Commission Combined Graduate Level Exam
Question : The sum of the curved surface area and the total surface area of a solid cylinder is 2068 cm2. If the radius of its base is 7 cm, then what is the volume of this cylinder? (use $\pi=\frac{22}{7}$)
Option 1: 2060 cm3
Option 2: 2480 cm3
Option 3: 3080 cm3
Option 4: 2760 cm3
Correct Answer: 3080 cm3
Solution : Given: The sum of the curved surface area and the total surface area of a solid cylinder is 2068 cm2. The radius of its base is 7 cm. Volume of the cylinder $= \pi r^2 h$ The curved surface area of
Question : The given sentence has some words with incorrect spellings. Select the most appropriate option that corrects the spellings. The agreement was termineted by mutal consent.
Option 1: The agreement was terminated by mutual consent.
Option 2: The agreement was tarminated by mutual consent.
Option 3: The agriment was terminated by mutual consent.
Option 4: The agreement was terminated by mutual concent.
Correct Answer: The agreement was terminated by mutual consent.
Solution : The correct choice is the first option.
The original sentence had termineted, which is incorrect. The correct spelling is terminated, meaning the agreement came to an end.
So, the correct sentence should be: "The agreement was terminated by mutual
Question : A can complete a task in 9 days and B in 12 days. If they work together on it for 5 days, then the fraction of the work left is:
Option 1: $\frac{1}{35}$
Option 2: $\frac{1}{36}$
Option 3: $\frac{5}{36}$
Option 4: $\frac{35}{36}$
Correct Answer: $\frac{1}{36}$
Solution : Given: A can complete a task in 9 days and B can do it in 12 days. Let total work = LCM (9,12) = 36 units Efficiency of A is $\frac{36}{9} = 4$ units Efficiency of B is $\frac{36}{12} = 3$ units Work done by
Question : If $x=(0.25)^\frac{1}{2}$, $y=(0.4)^{2}$, and $z=(0.216)^{\frac{1}{3}}$, then:
Option 1: $y>x>z$
Option 2: $x>y>z$
Option 3: $z>x>y$
Option 4: $x>z>y$
Correct Answer: $z>x>y$
Solution : $x=0.25^\frac{1}{2}=\sqrt{0.25}=0.5$ $y=0.4^2=0.16$ $z=0.216^\frac{1}{3}=\sqrt[3]{0.216}=0.6$ Clearly, $z>x>y$ Hence, the correct answer is $z>x>y$.
Question : Which organism is responsible for alcohol fermentation?
Option 1: Chlorella
Option 2: Yeast
Option 3: Agaricus
Option 4: Puccinia
Correct Answer: Yeast
Solution : The answer is Yeast.
Yeast is a microorganism that is essential in alcoholic fermentation. It uses anaerobic respiration to convert carbohydrates like glucose and fructose into ethanol and carbon dioxide. This fermentation process is used in a variety of sectors, including the manufacturing of alcoholic
Question : Directions: In the following question, find the missing number from the given alternatives.
Option 1: 125
Option 2: 175
Option 3: 225
Option 4: 250
Correct Answer: 225
Solution : The number at the bottom of the figure is the square of the difference between the other two numbers given in the figure.
In the first figure→(20 – 9)2 = (11)2 = 121 In the second figure→(24 – 11)2 = (13)2
Question : Directions: Which one set of letters/numbers when sequentially placed at the gaps in the given letter series shall complete it? H_JH_IJHHI_HH_JH
Option 1: IHJI
Option 2: HIHI
Option 3: IHIJ
Option 4: HJHJ
Correct Answer: IHJI
Solution : Given: H_JH_IJHHI_HH_JH
To fill the series we have to divide the series – H_JH / _IJH / HI_H / H_JH Let's check each option – First option: IHJI; HIJH / HIJH / HIJH / HIJH (HIJH is repeated
Question : A can do 50% of the job in 16 days. B can do $\frac{1}{4}$th of the job in 24 days. In how many days can they do $\frac{3}{4}$th of the job working together?
Option 1: 24
Option 2: 9
Option 3: 21
Option 4: 18
Correct Answer: 18
Solution : A can complete the job in 32 days (since 50% of the job takes 16 days) and B can complete the job in 96 days (since 25% of the job takes 24 days). The combined rate of A and B is the sum of their
Question : Comprehension: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Since the 17th century, manure has been utilised in agriculture. In those days, they didn't know how plants got the (1)_____ they needed. They would toss wood debris, fish remains, and other side effects in an unfilled land to dispose of them. However, it wasn't long before people began to notice that the grass, bushes, and shrubs there were beginning to (2)_______. They came to the conclusion that the soil supplied the plants with the nutrients they needed and that organic remains could aid in this process. Because manure is (3)_______ from animals and plants, it not only provides a wide range of plant nutrients but also improves the structure of the soil. Farmers gradually began using fertilisers as well because they understood that if their farmlands were treated in a similar manner, the growth of their crops would also improve. It bonds the soil particles together to form soil crumbs, which are necessary for cultivating soil. Additionally, the addition of manure to the soil aids in the prevention of soil erosion and the loss of plant nutrients during precipitation. Commercial fertilisers, in contrast to manure, are inorganic (4)________ that do not alter the structure of the soil. Their function is to provide the sprouting plants with additional nutrients. A farmer ought to know when and how to apply a particular kind of fertiliser. When the plants require a particular nutrient the most, use it. If fertilisers haven't been added correctly to the soil, their roots won't be able to take in a lot. Rainwater could wash away these fertilisers, or they could end up (5)_________ the plants instead, costing the farmer money. Select the most appropriate option to fill in the blank no. 2.
Option 1: cherish
Option 2: raise
Option 3: flourish
Option 4: tend
Correct Answer: flourish
Solution : The correct choice is the third option.
Flourish means to grow or develop in a healthy or vigorous way, often implying prosperity or success. This is the most appropriate option, as it accurately describes how the grass, bushes, and shrubs in the unfilled land
Question : Punjab has a large number of inundation canals drawing water from
Option 1: Jhelum River
Option 2: Chenab River
Option 3: Beas River
Option 4: Sutlej River
Correct Answer: Sutlej River
Solution : The correct answer is Sutlej River.
The Sirhind Canal, one of Punjab's most significant irrigation canals, receives water transfer from the Sutlej River to supply the Sirhind Canal System. The Indira Gandhi Canal is utilized to irrigate areas in Rajasthan, Punjab and Haryana and
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