Staff Selection Commission Combined Higher Secondary Level Exam
Question : When several turns in a coil are tripled, without any change in the length of the coil, its self-inductance becomes:
Option 1: Nine times
Option 2: Three times
Option 3: Six times
Option 4: One-third
Correct Answer: Nine times
Solution : The correct answer is Nine times.
Any conducting coil's ability to resist changes in current flow is known as self-inductance. A solenoid's self-inductance increases by nine times when the number of turns in the coil triples without any change in the coil's length. The
Question : Which of the following is a feature of fundamental duties mentioned in the Indian Constitution?
Option 1: Some of them are available for legal expertise.
Option 2: Reasonable restrictions can be imposed.
Option 3: Some of them are available to foreigners.
Option 4: The Constitution does not provide for their direct enforcement.
Correct Answer: The Constitution does not provide for their direct enforcement.
Solution : The correct option is The Constitution does not provide for their direct enforcement.
Fundamental duties in the Indian Constitution are not directly enforceable by law. While they are mentioned as a part of the Constitution, there are
Question : Directions: Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term. 11 : 133 :: 16 : ? :: 22 : 507
Option 1: 280
Option 2: 270
Option 3: 273
Option 4: 290
Correct Answer: 273
Solution : Given: 11 : 133 :: 16 : ? :: 22 : 507
Square the first number and then add 1 and the first number to the resultant, to get the second number – Like, 11 : 133→(11)2 = 121; 11 + 1 = 12;
Question : Directions: Adam who is 20 years old is 4 times as old as Mary. What will be Mary's age when Adam is twice as old as her?
Option 1: 35 years
Option 2: 15 years
Option 3: 30 years
Option 4: 17 years
Correct Answer: 15 years
Solution :
Let us assume that after A years, Adam's age is twice the
Question : Directions: Some equations are solved on the same basis, find out the correct answer for the unsolved equation. If 2 × 16 = 8, 8 × 8 = 1, 6 × 12 = 2, then 12 × 144 = ?
Option 1: 11
Option 2: 12
Option 3: 16
Option 4: 24
Correct Answer: 12
Solution : Given: 2 × 16 = 8, 8 × 8 = 1, 6 × 12 = 2
Like, 2 × 16 = 8→16 ÷ 2 = 8 8 × 8 = 1→8 ÷ 8 = 1 6 × 12 = 2→12 ÷ 6 = 2 Similarly,
Question : Directions: The following graph represents the transport used by children. Study the graph and answer the given question.
What is the percentage of children using scooters?
Option 1: 20%
Option 2: 33.33%
Option 3: 15%
Option 4: 40%
Correct Answer: 20%
Solution : As per the chart, The sum of all the central angles in a pie chart is 360°. The corresponding angle for children using a scooter = 72° The required percentage = $\frac{72^\circ}{360^\circ}$ × 100 = 20% Hence, the correct answer is 20%.
Question : Directions: Ram walks 2 km to the east, then he turns to the South and walks 6 km. He again turns to the East and walks 2 km, then he turns to the North and walks 12 km. How far is he from the starting point?
Option 1: 7 km
Option 2: 7.1 km
Option 3: 7.2 km
Option 4: 7.3 km
Correct Answer: 7.2 km
Solution : According to the instructions given, the diagram is as follows –
Here, A is the starting point and F is the finishing point and AF is the total distance from the starting point.
AB = 2 km; BC = 6 km; CD = BE
Question : Fifth-generation computers are:
Option 1: Data processors
Option 2: Knowledge processors
Option 3: Sound waves
Option 4: Ultrasonic waves
Correct Answer: Knowledge processors
Solution : The correct answer is Knowledge processors.
Fifth-generation computers, often known as knowledge processors, were envisioned as powerful computing systems capable of not just processing data and doing computations but also understanding and working with human knowledge more intelligently and naturally. These systems
Question : Due to an increase of 20 percent in the price of rice, the consumer decreases his consumption by 5 percent. What is the percentage change in total expenditure?
Option 1: 10 percent
Option 2: 15 percent
Option 3: 12 percent
Option 4: 14 percent
Correct Answer: 14 percent
Solution : Increase in Price = 20% Decrease in consumption = 5% ⇒ Percentage change in expenditure $= 20\% - 5\%-\frac{20\%\times5\%}{100}$ = 15% - 1% = 14% Hence, the correct answer is 14 percent.
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No error."
It being a rainy day (1) / I will decide to skip work (2) / and stay at home. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
As the event in the sentence is a past event, "will decide" should be replaced with "decided" to make the sentence grammatically accurate and convey its intended meaning.
Therefore, the correct sentence is: "It being
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