A current 10 sin (200t) A flows through a 5 mH inductance. The expression for voltage is

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Question: A current 10 sin (200t) A flows through a 5 mH inductance. The expression for voltage is
[A].

10 sin (200t + 90°)

[B].

10 sin (200t – 90°)

[C].

10 sin(1000t + 90°)

[D].

10 sin (1000t – 90°)

Answer: Option D

Explanation:

Z = jXL = jωL = = 1∠90° and V = IXL

Determine the approximate amount of paint needed to cover the surface of the water storage tank. Assume that a liter of paint covers 2.5 m2. Also, what is the total inside volume of the tank.

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Question: Determine the approximate amount of paint needed to cover the surface of the water storage tank. Assume that a liter of paint covers 2.5 m2. Also, what is the total inside volume of the tank.
[A].

27.6 liters of paint, V = 52.6 m3

[B].

20.1 liters of paint, V = 50.3 m3

[C].

26.4 liters of paint, V = 56.5 m3

[D].

25.1 liters of paint, V = 55.0 m3

Answer: Option C

Explanation:

No answer description available for this question.

World’s busiest airports by passenger traffic is

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Question: World’s busiest airports by passenger traffic is
[A].

Hartsfield-Jackson Atlanta International Airport, USA

[B].

Lhasa Airport, Tibet

[C].

King Abdul Aziz International Airport, Saudi Arabia

[D].

Chicago O’ Hare International Airport, USA

Answer: Option A

Explanation:

No answer description available for this question.

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

Guide is to direct as reduce is to

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Question: Guide is to direct as reduce is to
[A].

decrease

[B].

maintain

[C].

increase

[D].

preserve

Answer: Option A

Explanation:

Guide and direct are synonyms, and reduce and decrease are synonyms. The answer is not choice b or d because neither means the same as reduce. (Choice c) is incorrect because increase is the opposite of reduce.