Staff Selection Commission Sub Inspector Exam
Question : Who among the following played an important role in the Ghadar movement?
Option 1: Shyamji Krishna Varma
Option 2: Lala Har Dayal
Option 3: Bipin Chandra Pal
Option 4: Vishnu Ganesh Pingle
Correct Answer: Lala Har Dayal
Solution : The correct option is Lala Har Dayal.
The Ghadar Movement was a political revolutionary organization founded in the United States of America by Indian immigrants. On July 15, 1913, Lala Har Dayal, Sant Baba Wasakha Singh Dadehar, Baba Jawala Singh, Santokh Singh,
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the following set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed) (21, 5, 120) (2, 7, 8)
Option 1: (3, 4, 10)
Option 2: (3, 4, 16)
Option 3: (2, 6, 21)
Option 4: (4, 7, 34)
Correct Answer: (3, 4, 10)
Solution : Given: (21, 5, 120) (2, 7, 8)
In the above–given set of numbers, subtract 1 from the first, add 1 to the second number, and the result of both is multiplied to obtain the third number. ⇒(21, 5, 120) = (21 – 1)
Question : Harsh Vardhan, India’s Minister of ______, was elected the Chairman of the World Health Organisation’s Executive Board on 22 May 2020.
Option 1: Foreign Affairs
Option 2: Health and Family Welfare
Option 3: Housing
Option 4: Arts and Culture
Correct Answer: Health and Family Welfare
Solution : The correct answer is Health and Family Welfare.
Harsh Vardhan, the Minister of Health and Family Welfare in India was elected as the Chair of the World Health Organisation's Executive Board and played a key role in India's COVID-19 response. Harsh
Question : Select the most appropriate idiom to fill in the blank. All my efforts went in vain. The project on which I was working for the last two months has failed, and we are ________________________.
Option 1: all in the seventh heaven
Option 2: back to square one
Option 3: on the fly
Option 4: around the bend
Correct Answer: back to square one
Solution : The correct choice is the second option.
The reason back to square one is the most appropriate idiom in this context is that it conveys the idea of returning to the starting point or beginning after experiencing a failure or setback.
Therefore,
Question : 'I' is the incentre of $\triangle$ABC. If $\angle$BIC = 108$^\circ$, then $\angle$A = ?
Option 1: 54$^\circ$
Option 2: 36$^\circ$
Option 3: 72$^\circ$
Option 4: 81$^\circ$
Correct Answer: 36$^\circ$
Solution : In $\triangle$ABC, if 'I' is the incenter, then $\angle BIC = 90^\circ + \frac{A}{2}$. Given that $\angle BIC = 108^\circ$, So, $\angle A = 2 \times (\angle BIC - 90^\circ) = 2 \times (108^\circ - 90^\circ) = 36^\circ$ Hence, the correct answer is 36$^\circ$.
Question : From the top of a lighthouse at a height of 20 metres above sea-level, the angle of depression of a ship is 30°. The distance of the ship from the foot of the lighthouse is:
Option 1: $20$ m
Option 2: $20 {\sqrt3}$ m
Option 3: $30$ m
Option 4: $30 {\sqrt3}$ m
Correct Answer: $20 {\sqrt3}$ m
Solution : Height of a lighthouse = 20 metres Let the distance of the ship from the foot of the lighthouse be $x$. The angle of depression of the ship from the house = $30°$ From figure, we can see that $\frac{20}{x}=\tan 30°$ So, the
Question : A conical-shaped vessel has a radius of 21 cm and a slant height of 25 cm. If the curved part of the vessel is to be painted white, find the cost (in Rs. ) of painting at the rate of Rs. 1.5 per cm2.
Option 1: 2475
Option 2: 1650
Option 3: 825
Option 4: 1250
Correct Answer: 2475
Solution : The curved surface area (CSA) of a cone is given by the formula: $\text{CSA} = \pi r l$ Where $r$ is the radius and $l$ is the slant height. Given that the radius $r$ is 21 cm and the slant height $l$ is 25 cm.
Question : The speeds of A and B are in the ratio 3 : 5. A takes 30 minutes more than B to reach the destination. In how much time does A reach the destination?
Option 1: 1 hour 15 minutes
Option 2: 1 hour 10 minutes
Option 3: 1 hour
Option 4: 1 hour 5 minutes
Correct Answer: 1 hour 15 minutes
Solution : The ratio of speeds of A and B = $3:5$ $\therefore$ The ratio of time of A and B = $5:3$ Let the times for A and B be $5x$ and $3x$. A takes = 30 minutes more than B Time difference
Question : Amartya Sen was awarded the Nobel Prize for his contribution to
Option 1: Monetary Economics
Option 2: Welfare Economics
Option 3: Econometrics
Option 4: Development Economics
Correct Answer: Welfare Economics
Solution : The correct option is - Welfare Economics.
Amartya Sen, an Indian economist, received the 1998 Nobel Prize in Economic Sciences in recognition of his contributions to welfare economics and social choice theory.
Sen is best known for his research on the causes of famine,
Question : What is the positive value of the following expression? $\sqrt{36 \div 15 \text { of } 2 \text { of }[25 \times 4 \div 4 \text { of }\{29-(8-11) \div(9 \times 5 \div 5 \text { of } 3)\}]}$
Option 1: $1 \frac{5}{6}$
Option 2: $1 \frac{1}{5}$
Option 3: $2 \frac{4}{5}$
Option 4: $2 \frac{3}{5}$
Correct Answer: $1 \frac{1}{5}$
Solution : Given: $\sqrt{36 \div 15 \text { of } 2 \text { of }[25 \times 4 \div 4 \text { of }\{29-(8-11) \div(9 \times 5 \div 5 \text { of } 3)\}]}$ = $\sqrt{36 \div 15 \text { of } 2 \text { of }[25
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