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Question : The optimum dissolved oxygen level ( in mg / litre ) required for survival of aquatic organisms is:

Option 1: 4 - 6

Option 2: 2 - 4

Option 3: 8 - 10

Option 4: 12 - 16

Team Careers360 25th Jan, 2024

Correct Answer: 4 - 6


Solution : The correct option is - 4 - 6

Fish and other aquatic species might die when there is not enough oxygen in the water. Water should have at least 4 mg/L of dissolved oxygen to support living things. Nearly all aquatic creatures can

13 Views

Question : Which of the following is a value of $\theta$, when $\cos ^2 \theta-2+\cos \theta=0$?

Option 1: 60°

Option 2: 90°

Option 3: 30°

Option 4:

Team Careers360 23rd Jan, 2024

Correct Answer:


Solution : Given, $\cos ^2 \theta-2+\cos \theta=0$
⇒ $\cos ^2 \theta+2\cos \theta-\cos\theta-2=0$
⇒ $\cos \theta(\cos \theta+2)-1(\cos \theta+2)=0$
⇒ $(\cos \theta+2)(cos \theta-1)=0$
⇒ $\cos \theta=-2$ or $\cos \theta=1$
Since the range of $\cos\theta$ is –1 < $\cos \theta$ < 1
Hence, $\cos\theta$ cannot be –2.
So, $\cos \theta=1⇒\theta=

20 Views

Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".

Raja is a bad singer, he is (tone-deaf).

(1) stone-deaf

(2) deaf 

(3) tune-deaf

(4) No Improvement

Option 1: (1)

Option 2: (2)

Option 3: (3)

Option 4: (4)

Team Careers360 21st Jan, 2024

Correct Answer: (4)


Solution : The fourth option is the correct choice.

In the given sentence, the term tone-deaf is correctly used as it is an adjective that means someone is unable to hear or appreciate the difference between musical notes. It is also used metaphorically to describe someone who

5 Views

Question : Select the correct passive form of the given sentence.

The citizens have chosen that man as their leader.

Option 1: That man had been chosen by the citizens as their leader.

Option 2: That man has been chosen by the citizens as their leader.

Option 3: That man is chosen by the citizens as their leader.

Option 4: That man was chosen by the citizens as their leader.

Team Careers360 22nd Jan, 2024

Correct Answer: That man has been chosen by the citizens as their leader.


Solution : The first option is the correct choice.

Passive voice is the voice in which the object experiences an action rather than the person who performs the action. Hence, the object in the active voice becomes

15 Views

Question : The reverse effect of X-ray emission is

Option 1: Raman effect

Option 2: Compton effect

Option 3: Zeeman effect

Option 4: Photoelectric

Team Careers360 25th Jan, 2024

Correct Answer: Photoelectric


Solution : The correct answer is Photoelectric

High-energy electrons are employed to generate photons in the production of X-rays. The resulting phenomenon is known as "photoelectric effect", which involves the emission of electrons when photons interact with a material.

20 Views

Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer.

One of the pens ____ no ink.

Option 1: has

Option 2: have

Option 3: is

Option 4: are

Team Careers360 20th Jan, 2024

Correct Answer: has


Solution : The first option is the correct answer.

When "one of" is used in a sentence, it acts as a singular subject and is followed by the singular verb, that is, has in this context.

Therefore, the complete sentence is: One of the pens has no

24 Views

Question : Select the appropriate antonym for the underlined word.
Social justice has been one of the cherished goals of the makers of our Constitution.

Option 1: relished

Option 2: valued

Option 3: treasured

Option 4: despised

Team Careers360 20th Jan, 2024

Correct Answer: despised


Solution : The correct choice is the fourth option.

Cherished means deeply loved, valued, or cared for. The antonym despised means to strongly dislike, hate, or have contempt for something. In this context, "cherished" represents a positive sentiment towards the goals, while "despised" represents a negative

12 Views

Question : Bibi Ka Maqbara is located in India at:

Option 1: Fatehpur Sikri

Option 2: Aurangabad

Option 3: Hyderabad

Option 4: Jaunpur

Team Careers360 23rd Jan, 2024

Correct Answer: Aurangabad


Solution : The correct option is Aurangabad.

Aurangabad is home to Bibi Ka Maqbara. It is a tomb constructed in honour of Mughal emperor Aurangzeb's first wife, Dilras Banu Begum. It is sometimes referred to as the " Mini Taj Mahal" due to its similarity to

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