Staff Selection Commission Sub Inspector Exam
Question : Copper substances when exposed to air, gain a green coating due to the formation of:
Option 1: CuO
Option 2: CuCO3.Cu(OH)2
Option 3: CuSO4
Option 4: Cu(NO3)2
Correct Answer: CuCO3.Cu(OH)2
Solution : The correct option is CuCO3.Cu(OH)2.
Copper turns green when it comes into contact with air because copper carbonate forms. This covering that has a greenish hue is called "patina." Carbon dioxide, oxygen from the air, and copper combine to
Question : Which extraordinary scholar and artist of the 17th century AD composed Bhamakalapam, a dance drama based on Kuchipudi?
Option 1: Sachindra Yogi
Option 2: Shivendra Yogi
Option 3: Siddhendra Yogi
Option 4: Sidharth Yogi
Correct Answer: Siddhendra Yogi
Solution : The correct option is Siddhendra Yogi.
Siddhendra Yogi was a 17th-century scholar and artist who wrote "Bhamakalapam," a Kuchipudi-based dance drama. He is recognised for having codified and revived Kuchipudi dancing, and "Bhaamaakalaapam" is one of his most important creations. Siddhendra Yogi, whose
Question : Directions: Select the correct combination of mathematical signs to replace × signs and to balance the following equation. 5 × 9 × 3 × 6 × 8
Option 1: ×, +, =, ×
Option 2: ×, –, =, ×
Option 3: +, ÷, –, =
Option 4: +, ×, ÷, =
Correct Answer: ×, +, =, ×
Solution : Given: 5 × 9 × 3 × 6 × 8
On replacing × with the mathematical signs – First option: ×, +, =, × L.H.S. = 5 × 9 + 3 = 45 + 3 = 48 R.H.S. = 6 × 8
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
They were all astonished at the team's dramatic success in the competition.
(1) were astonished at all
(2) had all astonished by
(3) had been all astonished on
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct choice is the fourth option.
The original sentence is grammatically correct and conveys the intended meaning. The other alternatives provided do not improve the sentence and may introduce grammatical errors or awkward phrasing.
Question : Raghu sold an article for INR 180 after allowing a 20% discount on its marked price. Had he not allowed any discount, he would have gained 20%. What is the cost price of the article?
Option 1: INR 187.50
Option 2: INR 192.80
Option 3: INR 188.60
Option 4: INR 190.40
Correct Answer: INR 187.50
Solution : Given: After allowing a 20% discount selling price is INR 180. So, 180 = Marked Price – 20% of the Marked Price = 80% of the Marked Price ⇒ Marked Price = $\frac{180}{80}$ × 100 = 225 At no discount 20% profit. So, 225
Question : As per the Economic Survey 2018-19, the national 'total fertility rate' is expected to be below replacement rate by the year:
Option 1: 2021
Option 2: 2025
Option 3: 2024
Option 4: 2022
Correct Answer: 2021
Solution : The correct answer is 2021.
According to the economic survey 2018-19, the national 'total fertility rate' was expected to be below the replacement rate by 2021. The replacement rate is the percentage of a person's annual employment income that is replaced by the retirement income
Question : Study the given histogram that shows the marks obtained by students in an examination and answer the question that follows. The number of students who obtained less than 250 marks is what percentage more than the number of students who obtained 400 or more marks? (correct to one decimal place)
Option 1: 150%
Option 2: 175.8%
Option 3: 114.3%
Option 4: 100%
Correct Answer: 114.3%
Solution : The number of students who obtained less than 250 marks = 30 + 45 = 75 The number of students who obtained 400 or more marks = 35 So, the required percentage = $\frac{(75 - 35)}{35}× 100$ = ($\frac{40}{35}$) × 100 = 114.3% $\therefore$ The
Question : Directions: Select the option that will fill in the blank and complete the given series. 35, 52, 75, 110, 151, ___
Option 1: 206
Option 2: 210
Option 3: 204
Option 4: 218
Correct Answer: 204
Solution : Given: 35, 52, 75, 110, 151, ___
The pattern is as follows –
So, the required missing number in the series is 204. Hence, the third option is correct.
Question : The Parliamentary Committee which scrutinises the report of the Comptroller and Auditor General of India is
Option 1: Estimates Committee
Option 2: Select Committee
Option 3: Public Accounts Committee
Option 4: None of these
Correct Answer: Public Accounts Committee
Solution : The correct option is the Public Accounts Committee.
The (Public Accounts Committee) PAC is a parliamentary committee that examines the audit reports of the CAG, which audits the accounts of the government and public sector organisations to ensure transparency and accountability in
Question : The monthly budget of an average household is given in the following table.
The percentage of the monthly budget spent on clothing is:
Option 1: 10%
Option 2: 12%
Option 3: 8%
Option 4: 4%
Correct Answer: 10%
Solution : Total monthly budget = 8000 + 2000 + 6000 + 4000 = 20000 The percentage of the monthly budget spent on clothing $=\frac{2000}{20000}×100= 10\%$ Hence, the correct answer is 10%.
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