Maharashtra Police Constable Mock Test - 9 - Maharashtra Police Constable MCQ

• Avanti was an ancient Indian Mahajanapada, roughly corresponded to the present-day Malwa region.
• According to the Buddhist text, the Anguttara Nikaya, Avanti was one of the solace Mahajanapada (sixteen great realms) of the 6th century BCE.
• The Janapada was divided into two parts by the Vindhyas, the northern part had its capital at Ujjayini and the southern part had its centre at Mahishmati.

The Satavahanas are believed to be synonymous with the Andhras mentioned in the Puranas.

Harsha was the ruler of Kannauj, which was located in North India. Kannauj served as the political and administrative center of the Vardhana Dynasty.

Alexander's troops forced him to turn back from India at the Beas river, fearing mutiny if they were made to advance further into the unknown country.

The Acropolis of Athens is an ancient citadel containing several historical buildings, including the famous Parthenon.

The Indira Gandhi International Airport, one of the busiest airports in India, is located in the capital city, Delhi.

The theory of plate tectonics explains the movement of Earth's lithospheric plates, which causes earthquakes and volcanic activities at plate boundaries.

Eravikulam National Park, located in Kerala, is home to the endangered Nilgiri Tahr.

River erosion is the process by which a river wears away its banks and bed, leading to the deepening and widening of its valley over time.

The Chhatrapati Shivaji Maharaj International Airport is located in Mumbai, Maharashtra.

Machu Picchu is located in Peru and is one of the most famous and well-preserved archaeological sites in the world.

Longitudes are lines that run north-south around the Earth and are used to measure distances east or west of the Prime Meridian.

Rajasthan is the largest state in India in terms of area but has a relatively low population density, making it one of the least populous states.

Panchayati Raj institutions were not applicable to the state of Jammu and Kashmir. However, after the abrogation of Article 370 in August 2019, it became applicable to the newly formed Union Territory of Jammu and Kashmir.

An adiabatic process is a process in which there is no transfer of heat between the system and surroundings. Here, the wall separating the system and the surroundings is called the adiabatic wall. The adiabatic process can be either reversible or irreversible.

The adiabatic lapse rate is the rate at which the temperature of an air parcel changes in response to the compression or expansion associated with elevation change, under the assumption that the process is adiabatic, i.e., no heat exchange occurs between the given air parcel and its surroundings.

Adiabatic lapse rate: Change of temperature with a change in altitude of an air parcel without gaining or losing any heat to the environment surrounding the parcel. Adiabatic processes are characterized by an increase in entropy, or degree of disorder, if they are irreversible and by no change in entropy if they are reversible. Adiabatic processes cannot decrease entropy.

Both the Statements are not correct. The phenomenon of a “blue moon” and a “super moon” 
was witnessed on 30 August 2023.

What is a Supermoon?

• A super moon happens when the moon is passing through or is close to its perigee, and is also  a full moon.
• A full moon occurs when the moon is directly opposite the sun (as seen from earth), and  therefore, has its entire day side lit up. 

What is a blue moon?

• A blue moon is the situation when a full moon is seen twice in a single month. 
• Because the new moon to new moon cycle lasts 29.5 days, a time comes when the full moon  occurs at the beginning of a month, and there are days left still for another full cycle to be  completed. 
• For example if the full moon is seen on the 1st or 2nd, there will be a second full moon on the  30th or 31st and this happens every two or three years.

Thousands of flights, within, into or out of the United States were delayed or cancelled due to a technical glitch.
The US Federal Aviation Administration’s (FAA) NOTAM (Notice to Air Missions) system, which alerts pilots and other flight personnel about hazards or changes to airport facility services, was not processing updated information.

1st term = 120
2nd term = 120-21 = 99
3rd term = 99-19 = 80
4th term = 80 - 17 = 63
5th term = 63 - 15 = 48

⇒ For every next term , preious term is substracteed in the order: -21, -19, -17, -15, -13,.....

So, missing term = 48 - 13 = 35

Efficiency of A = 100 / 12 = 8.33%
Efficiency of B = 100 / 15 = 6.66%
Combined efficiency of A and B = 8.33 + 6.66 = 15%
Number of days taken by A and B, when working together = 100 / 15 = 
Note : Efficiency x Time period = Fixed amount of work
Also, in terms of percentage total work to be done is considered as 100% (in fraction it is 1), unless otherwise stated.
Alternatively : It can be done through unitary method, also.

Let their investments be Rs. x for 14 months, Rs. y for 8 months and Rs. z for 7 months respectively.
Then, 14x : 8y : 7z = 5 : 7 : 8.
Now,

(x+40/s) + 5/4 = 40/s + 5x/4s — — — 1
(x+40/s) + 1 = 80/s + 5(x-40)/4s — — — 2
s = 40