Question : If the water smells bad, then that odour can be removed by adding:
Option 1: Alum
Option 2: Bleach
Option 3: Activated carbon
Option 4: Deactivated carbon
Correct Answer: Activated carbon
Solution : The correct option is Activated carbon.
Powdered activated carbon is the suggested remedy for tastes, and odours that are modest and sporadic. By adding powdered activated carbon to water, or using granular activated carbon in the water filter, bad tastes, and unpleasant odours can be eradicated. The way activated carbon functions is by a process called adsorption, in which the component responsible for the odour is trapped inside the activated carbon, and kept without affecting the size of the substance doing the adsorption.
Answer laterQuestion :
In these questions some of the sentences have errors and some have none. Find out which part of a sentence has an error and indicate it corresponding to the appropriate letters. If there is no error, indicate corresponding to the last option.
In order to give up the bad habit (1) / of drinking, use of medicine or (2) / similar other method (3) / can be helped (4).
Option 1: In order to give up the bad habit
Option 2: of drinking, use of medicine or
Option 3: similar other method
Option 4: can be helped
Correct Answer: can be helped
Solution : There is an error in the option 4.
We need to use "Can be helpful" instead of " can be helped".
Help is a verb however helpful is adjective.
Help means by offering one's services or resources, one can make anything easier or achievable for (someone). Helpful means willing to help, or useful:
Hence the correct sentence is
In order to give up the bad habit of drinking, use of medicine or similar other method can be helpful.
Question :
Select the phrase/connector from the given options to form a single sentence from the two sentences given below, implying the same meaning as expressed in the statement sentences
It was a bad idea. It was not risk-free.
Option 1: It was a bad idea but it was not risk-free
Option 2:
It was a bad idea and it was not risk-free
Option 3:
It was a bad idea with it was not risk-free
Option 4:
It was a bad idea despite being risk-free
Option 5:
It was a bad idea yet it was not risk-free
Correct Answer:
It was a bad idea and it was not risk-free
Solution :
We need ‘and’. Hence, “It was a bad idea and it was not risk-free” is the best choice
Question : Select the most appropriate meaning of the given idiom.
Bad iron.
Option 1: No steam
Option 2: Not hot
Option 3: Bad luck
Option 4: Bad behaviour
Correct Answer: Bad luck
Solution : The correct option is the third option.
The idiom, bad iron means to have bad luck or be unfortunate.
Question : Select the option that can be used as a one-word substitute for the given group of words.
Make (something bad or unsatisfactory) better
Option 1: Judge
Option 2: Malign
Option 3: Castigate
Option 4: Ameliorate
Correct Answer: Ameliorate
Solution : The correct choice is the fourth option.
Explanation:
Ameliorate fits this requirement, as it means to make something bad or unsatisfactory better. It is a synonym for improve and precisely conveys the meaning of enhancing a situation or condition.
The meanings of the other options are as follows:
- Judge: This word means to form an opinion or decide upon after careful consideration.
- Malign: This word means to speak harmful untruths about someone.
- Castigate: This word means to reprimand or criticise severely.
Therefore, the correct answer is ameliorate.
