1.
How tall is Iron pillar of Delhi?
Correct Answer
A. 7 m
Explanation
The Iron pillar of Delhi is approximately 7 meters tall. This ancient iron pillar, located in Delhi, India, is known for its remarkable corrosion resistance. Despite being over a thousand years old, it has not rusted significantly, which is a testament to the advanced metallurgical skills of the time. The pillar is a significant historical and archaeological artifact and attracts many visitors due to its unique properties.
2.
When was Iron pillar of Delhi made?
Correct Answer
B. 3rd to 4th century CE
Explanation
The correct answer is 3rd to 4th century CE. The Iron pillar of Delhi was made during this time period.
3.
How much do the pillars weigh?
Correct Answer
B. Over 6 t
Explanation
The correct answer is "Over 6 t". This suggests that the weight of the pillars is more than 6 tons. The answer indicates that the pillars are quite heavy and likely require significant strength to lift or move.
4.
Pillar is made from 98% of which material?
Correct Answer
D. Wrought iron
Explanation
The correct answer is wrought iron. Wrought iron is a type of iron that has a very low carbon content and is known for its durability and malleability. It was commonly used in the construction of pillars due to its strength and ability to withstand heavy loads. Bronze, aluminum, and silver alloy are not typically used in the construction of pillars and do not have the same properties as wrought iron.
5.
Who made the oldest inscription on the pillar?
Correct Answer
A. King Chandragupta II
Explanation
King Chandragupta II is the correct answer because he is historically known to have made the oldest inscription on the pillar. This inscription is believed to be from the 4th century CE and is located at the iron pillar in Delhi, India. The inscription mentions Chandragupta II's achievements and his reign, making it a significant historical artifact. Bhagwan Lal Indraji, Bhau Daji Lad, and Govardhan Rai Sharma are not associated with this particular inscription.
6.
Why is the pillar resistant to corrosion?
Correct Answer
D. All above
Explanation
The pillar is resistant to corrosion due to a combination of factors. Firstly, it has a passive protective film that forms on its surface, which acts as a barrier against corrosion. Additionally, the high amounts of phosphorus in the metal contribute to its corrosion resistance. Lastly, the alternate wetting and drying under atmospheric conditions also helps to prevent corrosion. Overall, all of these factors work together to make the pillar resistant to corrosion.
7.
By whom was done the first systematic research of Iron pillar?
Correct Answer
C. Sir Robert Hodfield
8.
When was a fence erected around the pillar in response to damage caused by visitors?
Correct Answer
D. 1997.
Explanation
In 1997, a fence was erected around the pillar in response to damage caused by visitors. This suggests that prior to 1997, the pillar was not protected by a fence and was susceptible to damage. Erecting a fence was a proactive measure taken to prevent further damage and ensure the preservation of the pillar.
9.
Which is the pillar's lower diameter?
Correct Answer
B. 420 mm
Explanation
The pillar's lower diameter is 420 mm. This means that the width of the pillar at the bottom is 420 mm.
10.
Where was originally the pillar erected?
Correct Answer
B. In what is now Udayagiri
Explanation
The pillar was originally erected in what is now Udayagiri.