Study HubHubPage 8/62Scan verified MCQs with the answer highlighted, then open explanations when you want the reasoning.
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SI unit of current
The SI unit of electric current is:
The SI unit of electric current is the ampere, which measures the flow of electric charge per second. Coulomb is the unit of electric charge, and volt is the unit of electric potential difference.
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Diagonals in polygon
How many diagonals can be drawn in a figure of 5 sides?
The formula to find the number of diagonals in a polygon with n sides is n(n-3)/2. For a polygon with 5 sides, the number of diagonals is 5(5-3)/2 = 5(2)/2 = 5 diagonals. However, the calculation shows 5 diagonals, so the correct answer is C, not A. The original correct_answer was C, which is correct. The explanation was missing and has been added. The difficulty is easy because this is a basic geometry question.
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Police station definition
A police station includes any place declared as a police station:
A police station includes any place declared as a police station, whether it is a general police station or a special police station. Therefore, both general and special police stations are included in the definition.
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Chabahar port control
India is going to get control of Iran's Chabahar port for how long?
India has signed an agreement to operate and develop Iran's Chabahar port for 12 years, not 18 months. This long-term agreement aims to enhance trade connectivity and regional cooperation.
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Rewards (FIA Act)
Rewards may be given for commendable services to:
Rewards for commendable services are typically given to both members of the agency and the public to recognize valuable contributions. Therefore, option C is correct as it includes both groups.
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Antonyms
Which word is the opposite of "offend"?
The word 'offend' means to cause displeasure or hurt feelings. The opposite would be to praise or express approval, which is best captured by 'acclaim'. The other options do not represent opposites of 'offend'.
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Grammar (tenses)
We had heard the story many times and as many times:
Option A correctly uses past tense consistently and the phrase 'he thought his eyes will water' is better expressed as 'he thought his eyes would water' to maintain past tense consistency. However, option A is closest and grammatically correct compared to others. Option C has a grammatical error ('the thought' should be 'thought').
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Moment/torque
The moment about a point P(0,0,0) of the force applied at Q(1,1,1) is:
The moment (torque) about point P is calculated by the cross product of the position vector r (from P to Q) and the force vector F. Here, r = i + j + k and F = 2i - j - k. The cross product r × F = (i + j + k) × (2i - j - k) = 3j - 3k, which corresponds to option C.
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Delegation of powers (FIA Act)
Delegation of powers has been provided in section __________ of the FIA Act.
Section 7-B of the FIA Act specifically provides for the delegation of powers to officers and employees of the FIA. Therefore, option B is correct, not C.
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Afghanistan Presidency
When did Ashraf Ghani become the President of Afghanistan?
Ashraf Ghani officially took office as the President of Afghanistan on 29 September 2014, which is widely recognized as the formal start of his presidency. While some sources mention a formal inauguration ceremony, the key date marking the beginning of his presidency is 29 September 2014, not October 2014. Therefore, option A (September 2014) is the correct answer.