Staff Selection Commission Sub Inspector Exam
Question : Who among the following is an inventor of an electric telegraph?
Option 1: Samuel Finley Breese Morse
Option 2: William Austin Burt
Option 3: Hans Lippershey
Option 4: William Stanley
Correct Answer: Samuel Finley Breese Morse
Solution : The correct option is Samuel Finley Breese Morse.
Samuel Morse is known as the inventor of the electric telegraph. He is renowned for inventing the Morse code, a system of dots and dashes used to encode messages that significantly improved long-distance telegraph
Question : A sum of money placed at compound interest doubles itself in 5 years. In how many years would it amount to eight times itself at the same rate of interest?
Option 1: 10 years
Option 2: 15 years
Option 3: 7 years
Option 4: 20 years
Correct Answer: 15 years
Solution : By applying the formula: Amount = P[$(1+\frac{r}{100})^n$] where P is principal, $r$ is the rate of interest compounded annually for $n$ years. Let the sum be $x$, then: Amount = $x(1+\frac{r}{100})^5 = 2x$ ⇒ $(1+\frac{r}{100})^5 = \frac{2x}{x}=2$ ⇒ $(1+\frac{r}{100})=2^\frac{1}{5}$ Now, the sum becomes 8
Question : Following is the figure showing the sales of different items in a stationery shop. Which product recorded the highest percentage change from 2020 to 2021?
Option 1: Geometry
Option 2: Notebook
Option 3: Charts
Option 4: Pages
Correct Answer: Notebook
Solution : Percentage change for geometry = $\frac{44-32}{32}\times 100$ = $\frac{12}{32}\times 100$ = 37.5% Percentage change for notebooks = $\frac{35-25}{25}\times 100$ = $\frac{10}{25}\times 100$ = 40% Percentage change for charts = $\frac{37-27}{27}\times 100$ = $\frac{10}{27}\times 100$ = 37.3% Percentage change for pages = $\frac{26-20}{20}\times 100$ = $\frac{6}{20}\times
Question : Directions: Four words have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Option 1: Fan
Option 2: Floor
Option 3: Wall
Option 4: Ceiling
Correct Answer: Fan
Solution : Let's check each option – First option: Fan→Fan is an appliance used in the home. Second option: Floor→The structural unit of a home. Third option: Wall→The structural unit of a home. Fourth option: Ceiling→The structural unit of a home.
So, the first option is different
Question : Neeru-Meeru is a watershed management programme in the state of ______.
Option 1: Odisha
Option 2: Rajasthan
Option 3: Andhra Pradesh
Option 4: Maharashtra
Correct Answer: Andhra Pradesh
Solution : The correct answer is Andhra Pradesh.
The Water Conservation Mission (WCM) introduced the Neeru-Meeru (Water and You) campaign on May 1, 2000. This is an effort by the Andhra Pradesh government to reduce poverty and conserve water. The initiative's main goal is to
Question : Directions: In the following question, some parts of the sentence have errors, and some are correct. Find out which part of the sentence has an error. The number of that part is the answer. If a sentence is error-free, your answer is "No Error".
No sooner did she arrive that her (1) / friends arranged a reception in her (2) / honour at the best resort in the town. (3) / No Error (4)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The error lies in the first part of the sentence.
Explanation: In the structure, "no sooner.... than" is used as a correlative conjunction to introduce the second part of a comparison. This construction is a correlative conjunction pair, indicating a cause-and-effect relationship between two
Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 31 : 3 :: 75 : 35 :: 54 : ?
Option 1: 9
Option 2: 21
Option 3: 19
Option 4: 20
Correct Answer: 20
Solution : Given: 31 : 3 :: 75 : 35 :: 54 : ?
For each pair, multiply the digits of the first number to obtain the second number – Here, 31 : 3→3 × 1 = 3 And, 75 : 35→7 × 5 = 35 Similarly,
Question : Select the most appropriate ANTONYM for the highlighted word. They drank some spurious drinks and fainted.
Option 1: curious
Option 2: artificial
Option 3: nefarious
Option 4: genuine
Correct Answer: genuine
Solution : The correct answer is the fourth option.
The word "spurious" implies that the drinks were not genuine, authentic, or real; they were likely fake, counterfeit, or of inferior quality. "Genuine" refers to something real, authentic, and not fake.
The meanings of the other options are
Question : The sales of batteries (in lakhs) manufactured by a company over the years are shown in the given table
Which type of battery had the highest total sales over the last seven years?
Option 1: 32 AH
Option 2: 35 AH
Option 3: 4 AH
Option 4: 55 AH
Correct Answer: 32 AH
Solution : Total Sales of 4 AH battery from 1992-1998 = 676 Total Sales of 7 AH battery from 1992-1998 = 694 Total Sales of 32 AH battery from 1992-1998 = 901 Total Sales of 35 AH battery from 1992-1998 = 601 Total Sales of 55
Question : Select the most appropriate idiomatic expression to fill in the blank. Our Director took a meeting and asked us to express our views on ____________of the new HR policy.
Option 1: the bandwagon
Option 2: the pros and cons
Option 3: the hook
Option 4: the ups and downs
Correct Answer: the pros and cons
Solution : The second option is correct.
In this context, the director is seeking input on both the positive and negative aspects of the new HR policy, asking the team to discuss its strengths and weaknesses. Using the idiom, the pros and cons conveys
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