Staff Selection Commission Multi Tasking Staff Exam
Question : At present, the number of trees in a village is 52,020. It increases annually at the rate of 2%. What was the number of trees in the village two years ago?
Option 1: 45,000
Option 2: 51,250
Option 3: 50,000
Option 4: 48,000
Correct Answer: 50,000
Solution : Given, The present number of trees in a village = 52,020 Annual Increase percentage = 2% Let the number of trees two years ago be $x$. ⇒ Number of trees one years ago after increase $=x+\frac{2}{100}×x= x+\frac{x}{50}$ One years ago number of trees $=\frac{51x}{50}$ So,
Question : Directions: Select the option figure in which the given figure (X) is embedded as its part (rotation is NOT allowed).
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Since the rotation is restricted, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, the given question figure is embedded only in the second option figure.
Hence, the second option is correct.
Question : Two cubes of iron whose edges are 7 cm and 11 cm are melted and formed into a single cube. Find the volume of the new cube formed.
Option 1: 1881 cm3
Option 2: 1674 cm3
Option 3: 1444 cm3
Option 4: 1221 cm3
Correct Answer: 1674 cm3
Solution : The volume of a cube = (Side)3 The volume of the first cube = 73 = 343 cm3 The volume of the second cube = 113 = 1331 cm3 When the two cubes are melted and formed into
Question : Which of the following atmospheric gases constitute greenhouse gases?
a. Carbon dioxide
b. Nitrogen
c. Nitrous oxide
d. Water vapour
Select the correct answer using the codes given below:
Option 1: a, c and d
Option 2: a and d
Option 3: a and c
Option 4: a, b and d
Correct Answer: a, c and d
Solution : The correct answer is a, c and d.
Earth's atmosphere is transparent to incoming short-wave solar radiation and opaque to long-wave terrestrial radiation. These terrestrial radiations are trapped by the greenhouse gases leading to an increase in the temperature of the earth.
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.
Many forests are cleared to (1)____ way for palm oil plantations. Palm oil is the most (2) ____produced vegetable oil and is found in half of all supermarket products. It's cheap, versatile and can be added to (3)_____ food and personal products like lipstick and shampoo. (4) _____popularity has (5)______ people to clear tropical forests to grow more palm trees.
Question
Select the most appropriate option to fill in the blank number 1.
Option 1: made
Option 2: take
Option 3: make
Option 4: give
Correct Answer: make
Solution : The right choice is the third option.
Explanation: The sentence expresses that forests are cleared in order to create space or provide a pathway for palm oil plantations. In this context, "make way" is the appropriate phrase, indicating the action of clearing or preparing
Question : Assam and most of the peninsular states have _____ population densities.
Option 1: high to very high
Option 2: very low
Option 3: moderate
Option 4: moderate to high
Correct Answer: moderate
Solution : The correct answer is moderate.
Assam and many peninsular states exhibit moderate population densities due to their hilly, dissected, and rocky terrains. The geographical characteristics, including moderate to low rainfall and shallow, less fertile soils, play a significant role in influencing population distribution in
Question : Improve the underlined part of the sentence. Choose ‘No improvement’ as an answer if the sentence is grammatically correct.
He started a newly jobs on Tuesday.
Option 1: No improvement
Option 2: a new job
Option 3: a new jobs
Option 4: an new job
Correct Answer: a new job
Solution : The correct choice is the second option.
Newly should be replaced with new, as the adjective is the correct usage in place of the adverb because adjectives are used to describe nouns, making it the correct choice in this context. Also,
Question : Directions: Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term. ABC2 : ZYX7 :: PQR21 : KJI26 :: MNO11 : ?
Option 1: NML16
Option 2: KLM14
Option 3: NLM14
Option 4: MKL16
Correct Answer: NML16
Solution : Given: ABC2 : ZYX7 :: PQR21 : KJI26 :: MNO11 : ?
Like, ABC2 : ZYX7 –
PQR21 : KJI26 –
Similarly, for MNO11 : ? –
So, MNO11 is related to NML16. Hence, the first option is correct.
Question : Which one of the following is the respiratory pigment in man?
Option 1: Haemocyanin
Option 2: Hemerythrin
Option 3: B-Carotene
Option 4: Haemoglobin
Correct Answer: Haemoglobin
Solution : The correct answer is Haemoglobin.
Haemoglobin is the red-coloured pigment present in human red blood cells. It is an iron-containing oxygen transport protein which aids in respiration and carries oxygen to various body organs. Haemoglobin has four binding sites for the oxygen molecules. The normal
Question : Directions: Which of the following diagrams represents the relationship among Fruits, Mango and Banana?
Solution : We know that both mango and banana are fruits. So, their circles will lie inside that of fruits. But, mango and banana are not related to each other. So, their circles will not have a common area. The Venn diagram will be –
Hence, the second
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