Staff Selection Commission Combined Graduate Level Exam
Question : Who invented penicillin?
Option 1: Alexander Fleming
Option 2: Louis Pasreur
Option 3: Dreser
Option 4: Edward Jenner
Correct Answer: Alexander Fleming
Solution : The correct answer is Alexander Fleming.
Penicillin is an antibiotic formed by the fungal mold Penicillium notatum. Alexander Fleming discovered it accidentally in 1928. Alexander Fleming was an physician and scientist from Scotland who is credited with the discovery of penicillin and bringing a
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.
Deforestation, wildfires, and pollution cause animals (1) _________lose their homes. Animals may be (2) _________ by their surroundings. Most individuals are (3) __________ that they are taking down an animal's home when they cut down trees for wood. Animal (4)___________ is also lost as a result of wildfires. The main causes of an animal becoming (5)_________ are poaching and smuggling. Pollution is extremely harmful to animals and their environments. Animals are interested and try to eat the pollution-causing things. Furthermore, some rivers and natural resources are becoming polluted, forcing animals to relocate.
Question: Select the most appropriate option to fill in the blank number 1.
Option 1: to
Option 2: from
Option 3: through
Option 4: of
Correct Answer: to
Solution : The most appropriate option is the first option.
Explanation: Deforestation, wildfires, and pollution cause animals to lose their homes.
This choice fits grammatically and contextually, indicating the action of losing as a consequence of the mentioned factors. "To" here implies the result or
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
Who do you think will win the game?
(1) Who do you
(2) No Error
(3) win the game
(4) think will
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct choice is the second option.
The given sentence is structured properly and is grammatically correct.
Therefore, the given sentence contains no errors.
Question : Directions: Select the option that represents the letters that when sequentially placed from left to right in the blanks below will complete the letter series. T_OJEW_TRO_EWF_ROJ_WFTR_JE_F
Option 1: RFJTEOW
Option 2: RJFOTWE
Option 3: RJFTWOE
Option 4: RFJOTEW
Correct Answer: RFJTEOW
Solution : Given: T_OJEW_TRO_EWF_ROJ_WFTR_JE_F
To fill the series we have to divide the series – T_OJEW_ / TRO_EWF / _ROJ_WF / TR_JE_F
Let's check each option – First option: RFJTEOW; TROJEWF / TROJEWF / TROJEWF / TROJE
Question : A shopkeeper gains 20% in place of a 16% loss if the selling price of an article is increased by INR 324. The cost price of the article is:
Option 1: INR 900
Option 2: INR 750
Option 3: INR 1,350
Option 4: INR 60
Correct Answer: INR 900
Solution : Given: A shopkeeper gains 20% in place of a 16% loss. Difference in profit = 20 + 16 = 36% According to the question, ⇒ 0.36 of Cost price = 324 ⇒ Cost price = $\frac{324}{0.36}$ ⇒ Cost price = $\frac{32400}{36}$ ⇒ Cost price
Question : AD is the median of $\triangle$ABC. If O is the centroid and AO = 10 cm, then OD is:
Option 1: 5 cm
Option 2: 20 cm
Option 3: 10 cm
Option 4: 30 cm
Correct Answer: 5 cm
Solution : AD is the median of $\triangle$ABC. O is the centroid of the circle. The Centroid of the triangle divides the median into a 2 : 1 ratio. ⇒ $\frac{AO}{OD}=\frac{2}{1}$ ⇒ $\frac{10}{OD}=\frac{2}{1}$ $\therefore OD = 5$ cm Hence, the correct answer is 5 cm.
Question : Point O is the centre of a circle of radius 5 cm. At a distance of 13 cm from O, point P is taken. From this point, two tangents, PQ and PR, are drawn to the circle. Then, the area of quadrilateral PQOR is:
Option 1: $60\ \text{cm}^2$
Option 2: $32.5\ \text{cm}^2$
Option 3: $65\ \text{cm}^2$
Option 4: $30\ \text{cm}^2$
Correct Answer: $60\ \text{cm}^2$
Solution : Given: Point O is the centre of a circle of radius 5 cm. At a distance of 13 cm from O, point P is taken. We know that the area of triangle is $\frac{1}{2} \times (\text{base}) \times (\text{height})$. $\angle OQP=\angle ORP=90°$(Angle at a point
Question : Direction: Select the missing number from the given responses.
Option 1: 36
Option 2: 46
Option 3: 40
Option 4: 26
Correct Answer: 36
Solution : Given:
Adding numbers of the first column we get-
43 + 21 + 35 = 99
And, adding numbers of the second column we get-
25 + 40 + 34 = 99
Similarly, the addition of
Question : Select the most appropriate ANTONYM of the word laborious from the given sentence:
Although gardening is a laborious job, but it gives me boundless joy, strenuous happiness and immense satisfaction and I like this facile activity.
Option 1: boundless
Option 2: facile
Option 3: strenuous
Option 4: immense
Correct Answer: facile
"Laborious" means requiring a lot of effort and hard work. It describes tasks that are demanding and difficult.
And "facile" on the other hand, means easy to do or achieve. It refers to tasks that are performed with
Question : Just born baby has the respiratory rate as :
Option 1: 32 times/minute
Option 2: 26 times/minute
Option 3: 18 times/minute
Option 4: 15 times/ minute
Correct Answer: 32 times/minute
Solution : The correct answer is 32 times/minute.
New born babies have a faster breathing rate between 30 to 50 times per minute. While breathing rate of an adult is between 15 to 20 times per minute. Breathing is an exercise of inhalation and exhalation of
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