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Question : Cathode rays are a beams of:
Option 1: Neutrons
Option 2: Protons
Option 3: Positrons
Option 4: Electrons
Correct Answer: Electrons
Solution : The correct option is Electrons.
Cathode rays are a beam of electrons. They were first observed in the late 19th century in cathode ray tubes, and their discovery played a crucial role in the development of modern physics. The cathode rays are negatively charged
Question : Directions: In this question, some equations are solved based on a certain system. On the same basis, find out the correct answer out of the four alternatives for the unsolved equation. If 6 × 2 × 9 = 269, 8 × 7 × 1 = 781, then 4 × 1 × 3 = ?
Option 1: 431
Option 2: 413
Option 3: 341
Option 4: 143
Correct Answer: 143
Solution : Given: 6 × 2 × 9 = 269; 8 × 7 × 1 = 781
The third number remains at the third position while the first and second numbers swap positions. Like, 6 × 2 × 9 = 269 And, 8 × 7 × 1
Question : How many Lok Sabha seats are allotted to Goa as of the General Election 2019?
Option 1: 12
Option 2: 7
Option 3: 2
Option 4: 5
Correct Answer: 2
Solution : The correct answer is 2
There are 2 Lok Sabha seats allotted to the state of Goa as of the general election of 2019. North Goa and South Goa are the two Lok Sabha constituencies of Goa.
Question : Directions: How many triangles are there in the given figure?
Option 1: 22
Option 2: 21
Option 3: 16
Option 4: 24
Correct Answer: 22
Solution : The given figure can be labelled as shown below –
In the above-labelled figure, there are a total of 22 triangles. They are AKM, ADH, HNM, HEA, HNO, HEF, HMO, HAF, FOP, FHI, FPQ, FIJ, FOQ, FHJ, JRQ, JGF, JRS, JGB, JQS, JFB, BSL, BJC.
Question : The Finance Commission:
Option 1: draws up five-year plans
Option 2: formulates monetary policy
Option 3: recommends pay revision of central government employees
Option 4: adjudicates on the sharing of resources between the centre and states
Correct Answer: recommends pay revision of central government employees
Solution : The correct option is to recommend pay revision for central government employees.
A constitutional authority in India called the Finance Commission is in charge of advising how tax income should be split between the Union and state governments.
Question : In which of the following states in Jog Falls located?
Option 1: Orissa
Option 2: Kerela
Option 3: Andhra Pradesh
Option 4: Karnataka
Correct Answer: Karnataka
Solution : The correct option is - Karnataka
In the Shimoga district of Karnataka's Western Ghats, Jog Falls is a waterfall on the Sharavathi River. It is India's second-highest plunge waterfall. It is a segmented waterfall that changes its form depending on the time of year and
Question : Which among the following is India’s first indigenously developed COVID-19 vaccine?
Option 1: Sputnik V
Option 2: Covishield
Option 3: COVAXIN
Option 4: Novavax
Correct Answer: COVAXIN
Solution : The correct option is COVAXIN.
India's first indigenously developed COVID-19 vaccine is Covaxin. It was developed by Bharat Biotech in collaboration with the Indian Council of Medical Research (ICMR) and the National Institute of Virology (NIV). Covaxin received emergency use authorisation in India and played
Question : Directions: Which of the following pieces will fit in the figure given below?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Because there is no restriction on the rotation of the figure, we will check all possible orientations of the option figures to determine which one may fit in the question figure. By comparison of all the option figures, only the fourth option figure is embedded in
Question : What is the ratio of the mean proportional between 1.6 and 3.6 and the third proportional of 5 and 8?
Option 1: 2 : 15
Option 2: 5 : 16
Option 3: 3 : 16
Option 4: 4 : 15
Correct Answer: 3 : 16
Solution : Mean proportion of 1.6 and 3.6 $=\sqrt{ab}=\sqrt{1.6\times 3.6}=2.4$ Now, the third proportion of 5 and 8 $=\frac{b^2}{a}=\frac{8^2}{5}=\frac{64}{5}$ $\therefore$ Ratio of mean proportion to third proportion = $2.4:\frac{64}{5}$ = 12 : 64 = 3 : 16 Hence, the correct answer is 3 : 16.
Question : 42 boys can complete a piece of work in 20 days working 8 hours per day. In how many days can 14 boys complete the same work, each boy working 12 hours per day?
Option 1: 39 days
Option 2: 40 days
Option 3: 41 days
Option 4: 42 days
Correct Answer: 40 days
Solution : Let the number of days be $D$ for 14 boys working 12 hours per day. Use the formula: $M_1D_1H_1= M_2D_2H_2$ Where $M_1$ and $M_2$ are persons, $D_1$ and $D_2$ are days and $H_1, H_2$ are hours per day. ⇒ 42 × 20 × 8
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