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Staff Selection Commission Sub Inspector Exam

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8 Views

Question : In 1785, who used the calibrated torsion balance to measure the force between electric charges?

Option 1: R. A. Millikan

Option 2: Hans Christian Oersted

Option 3: John Michell

Option 4: Charles-Augustin de Coulomb

Team Careers360 26th Jan, 2024

Correct Answer: Charles-Augustin de Coulomb


Solution : The correct option is Charles Augustin de Coulomb.

In 1785, the French physicist Charles-Augustin de Coulomb used a calibrated torsion balance to experimentally investigate and measure the force between electric charges. Coulomb's work laid the foundation for understanding electrostatic forces and formulating Coulomb's Law, which describes the quantitative relationship between the magnitudes of electric charges and the force between them.

5 Views

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
$\frac{-1}{729},\frac{-1}{81},\frac{-1}{9},?$

Option 1: 1

Option 2: –1

Option 3: $\frac{-1}{3}$

Option 4: $\frac{1}{3}$

Team Careers360 27th Jan, 2024

Correct Answer: –1


Solution : Given:
$\frac{-1}{729},\frac{-1}{81},\frac{-1}{9},?$

Multiply the previous term by 9 to obtain the missing term.
$\frac{-1}{729}×9=\frac{-1}{81};\frac{-1}{81}×9=\frac{-1}{9};\frac{-1}{9}×9=-1$

So, –1 is the missing term in the given series. Hence, the second option is correct.

Question : Directions: The following table gives details about the percentage change in the population in a particular town for given years. Go through the chart given and answer the questions that follow:

What was the percentage increase in the population of the town from 2005 to 2008?

Option 1: 19%

Option 2: 33.33%

Option 3: 22.6%

Option 4: Can not be determined.

Team Careers360 26th Jan, 2024

Correct Answer: 22.6%


Solution : Percentage increase in population in 2005 = 6%
Percentage increase in population in 2006 = 3%
Single increase percentage = $6+3+\frac{6×3}{100}=9.18$%
Percentage increase in population in 2007 = 4%
Single increase percentage of 9.18% and 4% = $9.18+4+\frac{9.18×4}{100}=13.55$%
Percentage increase in population in 2008 = 8%
Single increase percentage of 13.55% and 8% = $13.55+8+\frac{13.55×8}{100}=22.6$%
Hence, the correct answer is 22.6%.

2 Views

Question : The earth rotates on its axis at an inclination of

Option 1: 23 1/2 degree

Option 2: 22 1/2 degree

Option 3: 21 1/2 degree

Option 4: 20 degree

Team Careers360 27th Jan, 2024

Correct Answer: 23 1/2 degree


Solution : The correct answer is 23.5 degree.

Earth' axis of rotation is inclined at 23.5 degree from its orbital plane. Although this inclination varies slightly because of the gravitational attraction of sun and moon. This is responsible for the weather phenomenons on earth and makes life possible. The change in orbital tilt is known as obliquity. 

2 Views

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: Stars

Option 2: Planets

Option 3: Galaxies

Option 4: Rockets

Team Careers360 27th Jan, 2024

Correct Answer: Rockets


Solution : Let's check each option –
First option: Stars→The heavenly bodies of the Universe.
Second option: Planets→The heavenly bodies of the Universe.
Third option: Galaxies→The heavenly bodies of the Universe.
Fourth option: Rockets→ It is a man–made structure.

So, only the fourth option is different from the others. Hence, the fourth option is correct.

Question : Directions: Which answer figure will complete the pattern in the question figure?

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 26th Jan, 2024

Correct Answer:


Solution : On comparing the question figure and all the answer figures, the following figure will combine and make the complete pattern –

Hence, the first option is correct.

8 Views

Question : Comprehension:

Read the following passage and answer the questions that follow.

During the decade after liberalisation floriculture industries took giant steps in the export arena. This era has seen a dynamic shift from sustenance production to commercial production. The area under floriculture production in India is around 249 thousand hectares with a production of 1659 thousand tonnes loose flowers and 484 thousand tonnes cut flowers. Floriculture is now commercially cultivated in several states with Tamil Nadu (20%), Karnataka (13.5%) West Bengal (12.2%) having gone ahead of other producing states like Madhya Pradesh, Mizoram, Gujarat, Andhra Pradesh, Odisha, Jharkhand, Haryana, Assam and Chhattisgarh.

Government of India has identified floriculture as a sunrise industry and accorded it 100 % export oriented status. Owing to steady increase in the demand of flowers, floriculture has become one of the important commercial trades in agriculture. Hence commercial floriculture has emerged as hi-tech activity-taking place under controlled climatic conditions inside greenhouse. Floriculture in India, is being viewed as a high growth industry. Commercial floriculture is becoming important from the export angle. The liberalisation of industrial and trade policies paved the way for development of export-oriented production of cut flowers. The new seed policy had already made it feasible to import planting material of international varieties. It has been found that commercial floriculture has higher potential per unit area than most of the field crops and is therefore a lucrative business. Indian floriculture industry has been shifting from traditional flowers to cut flowers for export purposes. The liberalised economy has given an impetus to the Indian entrepreneurs for establishing export oriented floriculture units under controlled climatic conditions.

Indian floriculture industry comprises of flowers such as Rose, Tuberose, Glads, Anthurium, Carnations, Marigold etc.

India's total export of floriculture was INR 571.38 crores 81.94 million in 2018-19. The major importing countries were United States, Netherlands, United Kingdom, Germany and United Arab Emirates. There are more than 300 export-oriented units in India. More than 50 % of the floriculture units are based in Karnataka, Andhra Pradesh and Tamil Nadu. With the technical collaborations from foreign companies, the Indian floriculture industry is poised to increase its share in world trade.

Question:

Which of the following statements is NOT true according to the passage?

Option 1: Floriculture has been identified as a sunrise industry by the Government of India.

Option 2: India's total export of floriculture was $571.38 million in 2018-19.

Option 3: More than 50% of the floriculture units are based in Karnataka, Andhra Pradesh and Tamil Nadu.

Option 4: Floriculture has been accorded a 100% export status by the Government.

Team Careers360 27th Jan, 2024

Correct Answer: India's total export of floriculture was $571.38 million in 2018-19.


Solution : The second option is the correct choice.

The correct figure mentioned in the passage is "INR 571.38 crores," not million dollars. The statement incorrectly converts the currency to dollars. So, this statement is not true according to the information provided in the passage.

Therefore, the incorrect statement is: "India's total export of floriculture was $571.38 million in 2018-19."

2 Views

Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
(626 * 2) * (11 * 9) * 69 * 240 * 103

Option 1: ÷, +, ×, =, +, +

Option 2: +, ×, =, ÷, +, −

Option 3: ÷, −, ×, =, −, ×

Option 4: +, ×, =, −, ÷, +

Team Careers360 26th Jan, 2024

Correct Answer: ÷, +, ×, =, +, +


Solution : Given:
(626 * 2) * (11 * 9) * 69 * 240 * 103

Replace * with the mathematical signs and solve the equations one by one using BODMAS.
Let's check the given options –
First option: ÷, +, ×, =, +, +
⇒ (626 ÷ 2) + (11 × 9) = 69 + 240 + 103
L.H.S. = (626 ÷ 2) + (11 × 9) 
= 313 + 99 = 412
R.H.S. = 69 + 240 + 103
= 412
Here, L.H.S = R.H.S
Second option: +, ×, =, ÷, +, −
⇒ (626 + 2) × 11 = 9 ÷ 69 + 240 − 103
L.H.S. = (626 + 2) × 11
= 628 × 11
= 6908
R.H.S. = 9 ÷ 69 + 240 − 103
= 0.13 + 240 − 103
= 137.13
Here, L.H.S ≠ R.H.S
Third option: ÷, −, ×, =, −, ×
⇒ (626 ÷ 2) − (11 × 9) = 69 − 240 × 103
L.H.S = (626 ÷ 2) − (11 × 9)
= 313 − 99
= 214
R.H.S = 69 − 240 × 103
= 69 − 24720
= −24651
Here, L.H.S ≠ R.H.S
Fourth option: +, ×, =, −, ÷, +
⇒ (626 + 2) × 11 = 9 − 69 ÷ 240 + 103
L.H.S = (626 + 2) × 11
= 628 × 11
= 6908
R.H.S = 9 − 69 ÷ 240 + 103
= 9 − 0.29 + 103
= 111.71
Here, L.H.S ≠ R.H.S

So, only the first option satisfies the given equation. Hence, the first option is correct.

29 Views

Question : Select the most appropriate option that can substitute the underlined segment in the given sentence.
The decision to engage in an armed conflict is tacit.

Option 1: incomprehensible for some

Option 2: ineffective completely

Option 3: regretted by everyone

Option 4: implied without being stated

Team Careers360 27th Jan, 2024

Correct Answer: implied without being stated


Solution : The correct choice is the fourth option.

Explanation: The word "tacit" means something that is understood or implied without being explicitly stated. The most appropriate option to substitute the underlined segment is "implied without being stated", as it captures the essence of the original sentence, indicating that the decision to engage in an armed conflict is understood without being explicitly declared.

Therefore, the correct sentence should be: The decision to engage in an armed conflict is implied without being stated.

4 Views

Question : Which among the following measures the same quantity as that is measured by the SI unit "Pascal"?

Option 1: Watt

Option 2: Torr

Option 3: Newton

Option 4: Joule

Team Careers360 26th Jan, 2024

Correct Answer: Torr


Solution : The correct option is torr.

The torr, a unit of pressure, measures the same quantity as the SI unit "Pascal" (Pa). One torr is equal to 1/760th of standard atmospheric pressure. Both units quantify pressure, with 1 torr approximately equal to 133.322 pascals. They are commonly used in the study of gases and vacuum systems.

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