Staff Selection Commission Sub Inspector Exam
Question : Directions: In the following question, select the word that cannot be formed using the letters of the given word. LIBERATION
Option 1: RATIO
Option 2: AION
Option 3: BEAR
Option 4: LIBERAL
Correct Answer: LIBERAL
Solution : Given: LIBERATION
Now, let's compare all the option words with the word LIBERATION – First option: RATIO; All the letters of RATIO are present in the word LIBERATION. Second option: AION; All the letters of AION are present in the word LIBERATION. Third option: BEAR;
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).
No one cared for the boy after his father died.
(1) cared for the boy since his father died
(2) took care of the boy after his father had died
(3) took the boy for care after his father's death
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct choice is the second option.
The phrase "cared for the boy after his father died" should be replaced with "took care of the boy after his father had died" to convey the intended meaning that no one began to take care of the
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.) (9, 1, 19) (5, 2, 14)
Option 1: (3, 5, 56)
Option 2: (3, 2, 10)
Option 3: (2, 5, 12)
Option 4: (4, 7, 37)
Correct Answer: (3, 2, 10)
Solution : Given: (9, 1, 19); (5, 2, 14)
Multiply the first number by 2 and add the resultant to the square of the second number to get the third number – ⇒(9, 1, 19)→(9 × 2) + 12 = 18 + 1 =
Question : As of November 2019, Telangana shares its capital city with:
Option 1: Andhra Pradesh
Option 2: Odisha
Option 3: Kerala
Option 4: Karnataka
Correct Answer: Andhra Pradesh
Solution : The correct option is Andhra Pradesh.
As of November 2019, Telangana and Andhra Pradesh shared the capital city of Hyderabad. This unique situation arose due to the bifurcation of the erstwhile state of Andhra Pradesh into two separate states, namely Andhra Pradesh and
Question : Which value among $3^{200},2^{300},$ and $7^{100}$ is the largest?
Option 1: $3^{200}$
Option 2: $2^{300}$
Option 3: $7^{100}$
Option 4: All are equal.
Correct Answer: $3^{200}$
Solution : Given: $3^{200},2^{300},$ and $7^{100}$ $3^{200}=(3^{2})^{100}=9^{100}$ $2^{300}=(2^{3})^{100}=8^{100}$ $7^{100}=(7^{1})^{100}=7^{100}$ Thus, the largest number is $3^{200}$. Hence, the correct answer is $3^{200}$.
Question : What is the value of $999 \frac{1}{2} + 999 \frac{1}{6} + 999\frac{1}{12}+999 \frac{1}{20} + 999\frac{1}{30}?$
Option 1: $999\frac{1}6$
Option 2: $999\frac{5}6$
Option 3: $4995\frac{1}6$
Option 4: $4995\frac{5}6$
Correct Answer: $4995\frac{5}6$
Solution : $999 \frac{1}{2} + 999 \frac{1}{6} + 999\frac{1}{12}+999 \frac{1}{20} + 999\frac{1}{30}$ = $5\times 999+( \frac{1}{2} + \frac{1}{6} + \frac{1}{12}+\frac{1}{20} + \frac{1}{30})$ = $4995+( \frac{1}{1\times 2} + \frac{1}{2\times 3} + \frac{1}{3\times 4}+\frac{1}{4\times 5} + \frac{1}{5\times 6})$ = $4995+(\frac{1}{1}-\frac{1}{2} + \frac{1}{2} -\frac{1}{3}+ \frac{1}{3}-\frac{1}{4}+\frac{1}{4}-\frac{1}{5} + \frac{1}{5}-\frac{1}{6})$ = $4995 +(\frac{1}1-\frac{1}6)$
Question : Which of the following commands is called a three-finger salute in computers?
Option 1: Ctrl + Alt + Delete
Option 2: Ctrl + Shift + Escape
Option 3: Ctrl + Shift + Enter
Option 4: Ctrl + Alt + Arrow key
Correct Answer: Ctrl + Alt + Delete
Solution : The correct option is Ctrl + Alt + Delete.
In computers, the "three-finger salute" usually refers to the keyboard combination of pressing Ctrl+Alt+Delete. This key combination is frequently used to execute system-related operations, including logging in, and locking the computer,
Question : The first law of thermodynamics is related to the conservation of which one of the following?
Option 1: Energy
Option 2: Number of molecules
Option 3: Number of moles
Option 4: Temperature
Correct Answer: Energy
Solution : The correct option is Energy.
Energy cannot be created or destroyed in an isolated system, according to the first law of thermodynamics, also referred to as the law of conservation of energy. It can only change forms or be transferred between different parts of the
Question : Select the sentence that uses the idiom correctly.
Option 1: Flowers bloom under the weather.
Option 2: Trees shed their leaves under the weather.
Option 3: She missed the exam as she felt under the weather.
Option 4: Reena was walking on the lawn under the weather.
Correct Answer: She missed the exam as she felt under the weather.
Solution : The correct choice is the third option.
Explanation: The idiom under the weather is a common expression used to describe a person who is feeling unwell or sick. It does not have a literal connection
Question : Water flows at the rate of 10 meters per minute from a cylindrical pipe 5 mm in diameter. How long does it take to fill up a conical vessel whose diameter at the base is 30 cm and depth 24 cm?
Option 1: 28 minutes 48 seconds
Option 2: 51 minutes 12 seconds
Option 3: 51 minutes 24 seconds
Option 4: 28 minutes 36 seconds
Correct Answer: 28 minutes 48 seconds
Solution : Given: Water flows at the rate of 10 meters per minute from a cylindrical pipe 5 mm in diameter. Volume of water flown from cylindrical pipe of radius $r$ in 1 min = $\pi \times r^2\times \text{Rate of flow}$ Height of conical
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