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Question : Find the exact value of $\cos 120^{\circ}$.
Option 1: –0.5
Option 2: 0
Option 3: 0.5
Option 4: 1
Correct Answer: –0.5
Solution : We know that, $\cos (90^\circ + \theta) = - \sin \theta$ So, $\cos 120^\circ = \cos (90^\circ + 30^\circ) = - \sin30^\circ =-\frac{1}{2} = -0.5$ Hence, the correct answer is –0.5.
Question : During the year 1991-92, the industrial production recorded a ___________ growth of __________.
Option 1: negative; 1.1%
Option 2: positive; 0.6%
Option 3: positive; 1.1%
Option 4: negative; 0.9%
Correct Answer: positive; 0.6%
Solution : The correct answer is positive; 0.6%.
During the years 1991–92, industrial production recorded a positive growth of 0.6%. The New Industrial Policy of 1991 was implemented to liberate the industry from the shackles of the licensing system. The aim was to increase the
Question : The LCM of 8, 12, and 18 is:
Option 1: 24
Option 2: 80
Option 3: 72
Option 4: 36
Correct Answer: 72
Solution : Given numbers: 8, 12, and 18 We can write, 8 = 2 × 2 × 2 12 = 2 × 2 × 3 18 = 2 × 3 × 3 ⇒ LCM = 2 × 2 × 2 × 3 × 3 = 72 Hence,
Question : Metamorphism changes rocks'
Option 1: Structure
Option 2: Texture
Option 3: Both (1) and (2)
Option 4: Actual chemical composition
Correct Answer: Both (1) and (2)
Solution : The correct answer is Both (1) and (2).
Metamorphism is the process in which rocks are subjected to high pressure and temperature inside the earth. In this process structure and texture of the rock both changes without any effect on its chemical
Question : 'SCOPE' is the abbreviated form of :
Option 1: Standing Conference of Public Enterprises
Option 2: Selection Commission of Public Enterprises
Option 3: Specialist Committee of Public Enterprises
Option 4: None of these
Correct Answer: Standing Conference of Public Enterprises
Solution : The Correct Answer is Standing Conference of Public Enterprises
The Standing Conference of Public Enterprises, or SCOPE, is a central government-owned public enterprise. On September 29, 1970, it was first established as "New Horizon." The Central Government Public Enterprises are represented
Question : Dev completed the school project alone in 40 days. How many days will Arun alone take to complete the same work if he is 25% more efficient than Dev?
Option 1: 35 days
Option 2: 14 days
Option 3: 32 days
Option 4: 16 days
Correct Answer: 32 days
Solution : Given, Dev completed the school project in = 40 days Arun is 25% more efficient than Dev. So their time ratio will be, Arun : Dev = 100 : 125 = 4 : 5 Let the days taken by Arun to complete the work
Question : Ajay can row his boat in still water, at a speed of 11 km/hr, If the speed of the stream is 7 km/hr, how long will it take to a distance of 54 km downstream?
Option 1: 4 hours
Option 2: 2 hours
Option 3: 2.5 hours
Option 4: 3 hours
Correct Answer: 3 hours
Solution : Given: The speed of the boat in still water is 11 km/hr. The speed of the stream is 7 km/hr. Downstream speed of the boat = Boat's speed + Stream's speed = 11 + 7 = 18 km/hr The time to travel 54 km
Question : As of November 2022, what is the official language of India's neighbouring country China?
Option 1: Mandarin
Option 2: Sinhala
Option 3: Burmese
Option 4: Bengali
Correct Answer: Mandarin
Solution : The correct answer is Mandarin.
The India-China border spans a length of 3,488 kilometres, traversing various Indian states such as Himachal Pradesh, Arunachal Pradesh, Jammu and Kashmir, Sikkim, and Uttarakhand. The capital city of China is Beijing, and the official language spoken in the country
Question : Who among the following was popularly called the "Australian Mother of Kathakali"?
Option 1: Margot Fonteyn
Option 2: Anna Pavlova
Option 3: Yelena Andreyanova
Option 4: Louise Lightfoot
Correct Answer: Louise Lightfoot
Solution : The correct option is Louise Lightfoot.
The title "Australian Mother of Kathakali" is associated with a remarkable woman named Louise Lightfoot. She was an Australian dancer, choreographer, and researcher who made significant contributions to the promotion and understanding of Indian classical dance forms,
Question : Pick the odd one out:
Option 1: Java clients
Option 2: Worms
Option 3: Torjan Horse
Option 4: Virus
Correct Answer: Torjan Horse
Solution : The correct option is Java clients.
Java clients are legitimate software programmes or applications that make use of the Java programming language. In contrast, the terms "trojan," "worm," and "virus" refer to various forms of harmful software (malware) that may harm or compromise computer
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