Staff Selection Commission Sub Inspector Exam
Question : Directions: Select the combination of mathematical signs that when sequentially placed in the blanks of the given equation will balance the equation. (157_13)_36_1_5
Option 1: +, ÷, –, =
Option 2: –, ÷, +, =
Option 3: +, –, ÷, =
Option 4: ÷, –, +, =
Correct Answer: –, ÷, +, =
Solution : Given: (157_13)_36_1_5
Let's check each option – First Option: +, ÷, –, = (157 + 13) ÷ 36 – 1 = 5 L.H.S. = 170 ÷ 36 – 1 = 4.722 – 1 = 3.722 ≠ 5 Second Option: –, ÷, +,
Question : Any data (or) instruction entered into the memory of the computer is called __________.
Option 1: hard copy
Option 2: input
Option 3: output
Option 4: information
Correct Answer: input
Solution : The correct answer is input.
Any information or commands entered into a computer's memory are input. It describes the supplying of information or instructions to a computer for processing. Keyboards, mouse, scanners, and other types of input devices can all be used for
Question : Directions: In this question, a part of sentence is in bold. Below are given alternatives to the bold part at 1, 2 and 3 which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is 4.
Your dress is the same like mine.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The correct choice is the first option.
Explanation:
When comparing two things to show that they are identical or similar, we use the phrase "the same as". For example, "your dress is the same as mine" means your dress is identical or very similar
Question : Simplify the following expression. 72 − 42 ÷ 6 of 7 × 4 of 3 ÷ 4 × 3 − 5
Option 1: 32
Option 2: 16
Option 3: 58
Option 4: 45
Correct Answer: 58
Solution : 72 − 42 ÷ 6 of 7 × 4 of 3 ÷ 4 × 3 − 5 = 72 − 42 ÷ 42 × 12 ÷ 4 × 3 − 5 = 72 − 1 × 3 × 3 − 5 = 72 − 9
Question : Directions: In the following equation, two signs and two numbers need to be interchanged to make it correct. Select the appropriate signs and numbers from the given alternatives. 6 × 8 + 2 = 20
Option 1: × and +, 6 and 2
Option 2: + and ×, 6 and 8
Option 3: + and ×, 2 and 8
Option 4: × and +, 2 and 6
Correct Answer: + and ×, 6 and 8
Solution : Given: 6 × 8 + 2 = 20
Replace the given symbols and numbers in the options one by one with the original symbols and numbers in the given equation. First option: × and +, 6 and 2 = 2
Question : Which of the following intermolecular forces is also called a London force?
Option 1: Dispersion forces
Option 2: Dipole-induced dipole forces
Option 3: Dipole-dipole forces
Option 4: Hydrogen bond forces
Correct Answer: Dispersion forces
Solution : The correct answer is Dispersion forces.
A transient attractive force known as the London dispersion force arises when the electrons in two nearby atoms occupy positions that cause the atoms to form dipoles temporarily. An induced dipole-induced dipole attraction is another name for
Question : The longest rod that can be placed in a room is 12 metres long, 9 metres broad, and 8 metres high is:
Option 1: 27 m
Option 2: 19 m
Option 3: 17 m
Option 4: 13 m
Correct Answer: 17 m
Solution : Length of room, l = 12 m Breadth, b = 9 m Height, h = 8 m The longest rod to be kept in the room = diagonal of the cuboid = $\sqrt{l^2 + b^2 + h^2}$ = $\sqrt{12^2 + 9^2 + 8^2}$ =
Question : Directions: In the following question, some parts of the sentence may have 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".
Our professor taught us that (1) / one should respect the (2) / religions of others as much as his own. (3) / No Error (4)
Correct Answer: 3
Solution : The error lies in the third part of the sentence.
The error is in the use of pronouns. One should be replaced with one's.
Question : Directions: Find out the correct alternative figure which contains the given question figure.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : Because there is no restriction on the rotation of the figure, we will check all the possible orientations of the question figure in which of the given option figures it can fit itself. By comparison of all option figures, the question figure is embedded only in
Question : Directions: Study the following graph and answer the questions. The number on the top of a bar is the number of TV. Demand and production of colour TV of five companies A, B, C, D, and E.
What is the ratio of the companies having more demand than production to the companies having more production than demand?
Option 1: 2 : 3
Option 2: 4 : 1
Option 3: 2 : 2
Option 4: 3 : 2
Correct Answer: 3 : 2
Solution : As per the given graph, The number of companies that have more demand than production = 3 The number of companies that have more production than demand = 2 The required ratio = 3 : 2 Hence, the correct answer is 3 :
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