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Question : Removal of carbon particles from air involves the principles of
Option 1: Precipitation
Option 2: Filtration
Option 3: Electrophoresis
Option 4: Sedimentation
Correct Answer: Electrophoresis
Solution : The correct option is Electrophoresis.
Carbon particles in the air are colloidal particles, and they can be negatively charged. An electric field is applied to colloidal particles suspended in a liquid or gas during electrophoresis. These particles migrate towards the oppositely charged electrode due to
Question : In July 2018, an experiment aboard the International Space Station cooled a cloud of atoms of which chemical element to one ten-millionth of one Kelvin above absolute zero, forming a Bose-Einstein Condensate in space.
Option 1: Rubidium
Option 2: Plutonium
Option 3: Radium
Option 4: Thorium
Correct Answer: Rubidium
Solution : The correct option is Rubidium.
In July 2018, scientists aboard the orbiting lab used the Cold Atom Laboratory to chill a cloud of rubidium atoms to a temperature just one-tenth of a degree above absolute zero, achieving the fifth state of matter known as
Question : Directions: The ages of seven colleagues are compared. Pawan is older than only Lalit and Kunal. Jatin is the oldest. Manish is younger than only Jatin. Nilesh and Ojha are older than Pawan. Who is the third youngest colleague?
Option 1: Pawan
Option 2: Nilesh
Option 3: Ojha
Option 4: Kunal
Correct Answer: Pawan
Solution : Given: (I) Pawan is older than only Lalit and Kunal. Pawan > Lalit / Kunal (II) Jatin is the oldest. Manish is younger than only Jatin. Nilesh and Ojha are older than Pawan. Jatin > Manish > Nilesh/ Ojha > Ojha/Nilesh > Pawan > Lalit
Question : The following table shows the number of delivery partners (in thousands) who joined five different companies during six different years.
Find the average number of delivery partners who joined Twiggy in the last 6 years.
Option 1: 2545
Option 2: 2450
Option 3: 2540
Option 4: 2455
Correct Answer: 2450
Solution : Delivery partners who have joined Twiggy In the year 2016 = 1200 In the year 2017 = 1500 In the year 2018 = 2400 In the year 2019 = 2800 In the year 2020 = 3200 In the year 2021 = 3600 Total number of
Question : If an object executes 10 oscillations per second, then its frequency in kilohertz is equal to:
Option 1: 1
Option 2: 10
Option 3: 0.1
Option 4: 0.01
Correct Answer: 0.01
Solution : The correct option is 0.01.
The frequency (f) of an oscillating object is the number of oscillations or cycles it completes per unit of time. The formula to calculate frequency is:
f = number of oscillations/time
In the given scenario, the object executes 10 oscillations
Question : The main competitor for the Indian jute industry is
Option 1: China
Option 2: Nepal
Option 3: Bangladesh
Option 4: Japan
Correct Answer: Bangladesh
Solution : The correct answer is Bangladesh.
Jute is an annual crop grown in India and also known as golden fibre. It is used for making sacks, geotextiles, pulp, etc. In India West Bengal is the largest producer of jute. Area of Sunderbans delta is the major
Question : Rearrange the parts of the sentence in the correct order. P. useful for the Government to utilise the expertise and Q. in the present international scenario, it is necessary and R. and winning over the support of their counterparts in other countries S. services of Members of Parliament effectively for sensitising
Option 1: PRSQ
Option 2: QPSR
Option 3: PSQR
Option 4: SPRQ
Correct Answer: QPSR
Solution : The correct choice is the second option: QPSR.
The logical flow of information is as follows:
Question : Which among the following festivals is celebrated on Makar Sankranti day in Assam?
Option 1: Kati Bihu
Option 2: Magh Bihu
Option 3: Bohag Bihu
Option 4: Raksha Bandhan
Correct Answer: Magh Bihu
Solution : The correct option is Magh Bihu.
In Assam, the festival celebrated on Makar Sankranti day is called Magh Bihu. Makar Sankranti, which usually falls on January 14th or 15th, is a harvest festival celebrated with great enthusiasm in various parts of India, and
Question : If $\frac{x^{3}+3y^{2}x}{y^{3}+3x^{2}y}=\frac{35}{19}$, what is $\frac{x}{y} =?$
Option 1: $\frac{7}{6}$
Option 2: $\frac{5}{6}$
Option 3: $\frac{5}{1}$
Option 4: $\frac{7}{1}$
Correct Answer: $\frac{5}{1}$
Solution : $\frac{x^{3}+3y^{2}x}{y^{3}+3x^{2}y}=\frac{35}{19}$ Applying componendo and dividendo method, $\frac{x^{3}+3y^{2}x - y^{3}-3x^{2}y}{x^{3}+3y^{2}x + y^{3}+3x^{2}y}=\frac{35-19}{35+19} = \frac{16}{54}$ ⇒ $\frac{(x-y)^3}{(x+y)^3} = \frac{8}{27}$ ⇒ $\frac{x-y}{x+y} = \frac{2}{3}$ ⇒ $\frac{x+y}{x-y}=\frac{3}{2}$ Again, applying the componendo and dividendo method to solve the equation. $\frac{x+y+x-y}{x+y-x+y}=\frac{3+2}{3-2}$ $\Rightarrow\frac{x}{y} = \frac{5}{1}$ Hence, the correct answer is $\frac {5}{1}$.
Question : Directions: In the following question, select the missing number from the given series. 89, 148, 207, 266, ?
Option 1: 315
Option 2: 335
Option 3: 325
Option 4: 345
Correct Answer: 325
Solution : Given: 89, 148, 207, 266, ?
Add 59 to the previous term to obtain the next term. 89 + 59 = 148, 148 + 59 = 207, 207 + 59 = 266, 266 + 59 = 325
So, 325 is the missing term in the
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