Test: Assertion and Reason - Bank Exams MCQ

nflation in India is caused by unrestricted growth of black money.

Sachin, what does your sister think about the engagement ring I gave her? Sohan _____

I. “She says give another one which is more expensive.

→ Statement (I) is wrong as it shows the arrogant and shellfish behavior of Sachin's sister.

II. Chah says police will find it soon. 

→ Statement (II) is wrong as it is invalid with respect to given Assertion.

Thus, Both the statements I and II are not correct.

Hence, the correct answer is "Both the statements I and II are not correct."

97% of Venus atmosphere comprises of carbon dioxide which traps the incoming solar energy very efficiently.

Assertion: The food cooks fast in a Pressure Cooker.

Reason: The water boiling point increases due to increase in pressure

The food cooks fast in a Pressure Cooker because the trapped steam inside the pressure cooker increases the atmospheric pressure, hence increasing the boiling point of the water resulting in faster cooking of food.

Thus, Assertion and Reason both are true and the reason adequately describes the assertion.

Hence, the correct answer is "option (1)".

Due to decrease in pressure at higher altitudes, water boils much below 100°C so that the food does not get sufficient heat for being cooked. Salt increases the boiling point of water.

Assertion (A):  Admiral is the highest possible rank in Indian Army.

True.

Reason (R): Chief of Staff of Indian Navy is known as General.

True.

Both assertion and reason are true, but they belong to different context. So (R) is not the correct explanation of (A).

Hence, the answer is Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Clothes are not washed properly in hard water because it does not form lather with soap.

However, it is true that hard water contains many minerals.

Assertion A: Hybrid Electric Vehicles (HEVs) fuel running cost is lesser than Electric Vehicles (EVs).

• Hybrid cars are powered by two engines:
• one petrol, one electric.
• Both work with each other to spin the wheels.
• This leads to lesser petrol being burned and therefore better fuel efficiency. 
• The main difference between a hybrid car and an electric car is that the hybrid combines an internal combustion engine and electric motor to send power to its wheels.
• However, the electric car draws power from a single source of the electric motor(s) to propel the vehicle
• While hybrid cars offer better fuel efficiency or longer distances/ranges, electric vehicles are still yet to reach that potential.
• Hybrid Electric Vehicles (HEVs) fuel running cost is more than Electric Vehicles (EVs).

Hence  A is not correct

Reason R: Hybrid Electric Vehicles have both an internal combustion engine and an onboard electric power generation system.

Hybrid Electric Vehicle (HEV):

• HEV uses both the internal combustion (usually petrol) engine and the battery-powered motor powertrain.
• The petrol engine is used both to drive and charge when the battery is empty.
• These vehicles are not as efficient as fully electric or plug-in hybrid vehicles.

Hence R is correct

Therefore we can say that A is not correct but R is correct

The doctrine of Lapse was adopted as an annexation policy with respect to the expansionist tendencies of the British East India Company.

And according to the policy, if a ruler was incompetent or left without a male heir to the throne, the state was bound to lose its princely status.

So, the assertion is correct.

Also, this policy was widely implemented by Lord Dalhousie, who was the Governor-General of the East India Company in India between 1848 and 1856 but actually the policy was drafted in 1847.

So, the stated reason is correct but does not explain the assertion.

Plaster of Paris when mixed with water and applied around the fractured limbs, it sets into a hard mass and keeps the bone joints in a fixed position. So, it can be used for seeting fractured bones.

Despite high temperature, the filament in a bulb does not get burnt due to absence of oxygen, as the bulb is first evacuated and then filled with an inert gas like argon or helium. However, it is true that bulb filament is made of tungsten.