Hello Everyone,
Here is the Friday challenge for you all, it consists of 10 questions on Science and Technology. Write your answers in comment section, let’s see who get the maximum correct answer.
[Questions]
Q.1) If both husband and wife have blood group A, then their child cannot have which of the following blood group?
a) A
b) O
c) AB
d) None
Q.2) Bio-digester toilets are hailed as a solution to many of our problems. Which of the following statements about bio-digester toilets is correct?
1. They use aerobic bacteria
2. They require no or very low maintenance
3. They use less water
Select the correct statement using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3
Q.3) Which of these technologies requires line of sight for communication?
1. Bluetooth
2. Wi-fi
3. Near field communication
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 3 only
c) 1 and 3 only
d) None of the above
Q.4) Consider the following statements:
1. During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.
2. In the reverse osmosis, external pressure is applied to the dilute solution.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Q.5) Hard water is not suitable for
1. Drinking
2. Washing cloth with soap
3. Use in boilers
4. Irrigating crops
Select the correct answer using the codes given below:
a) 1 and 3 only
b) 2 and 3 only
c) 1, 2 and 4 only
d) 1, 2, 3 and 4
Q.6) Which of the following pairs are matched Incorrectly?
Disease Cause
1) Minamata Disease Cadmiun Poisioning
2) Blue Baby Syndrom Nitrate Contamination
3) Itai Itai Disease Mercury Poisoning
Select the correct answer using the codes given below:
a) 1 only
b) 3 only
c) 1 and 3 only
d) 1, 2 and 3
Q.7) Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this?
1. Dispersion
2. Refraction
3. Internal reflection
Select the correct answer using the codes given below:
a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Q.8) Ionosphere facilitates radio communication because of
1. Presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Select the correct answer using the codes given below:
a) 1 only
b) 2 only
c) Both 1 and 2
d) None of the above
Q.9) Various vitamin deficiency causes different diseases. In this regard which of the following pairs are correctly matched?
1. Niacin : Cheliosis
2. Thiamine : Pellagra
3. Retinol : Xerophthalmia
Select the correct answer using the codes given below.
a) 1 only
b) 2 only
c) 3 only
d) None
Q.10) Consider the following statements about antimicrobial resistance:
1. It is a natural phenomena.
2. Indiscriminate use of antibiotics leads to antimicrobial resistance.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
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