Q:

Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?

A) K1k2/k1+k2	B) 2k1k2/k1+k2
C) K1+k2/k1k2	D) None

Answer & Explanation Answer: B) 2k1k2/k1+k2

Explanation:

We know that,

The equivalent K = $\frac{L 1 + L 2}{\frac{L 1}{K 1} + \frac{L 2}{K 2}}$

where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively.

But here L1 = L2 = L (say)

Then K = L+L/(L/K1 + L/K2) = $\frac{2 K 1 K 2}{K 1 + K 2}$

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Filed Under: Physics
Exam Prep: GATE , Bank Exams , AIEEE
Job Role: Network Engineer

12 7167

Q:

Decibel is the unit of

A) speed of light	B) intensity of sound
C) intensity of heat	D) None of these

Answer & Explanation Answer: B) intensity of sound

Explanation:

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Filed Under: Physics

15 7166

Q:

Rearrange the parts of the sentence in correct order

It is becoming

P-increasingly clear that anyone
Q-of freedom, justice and equality is seen as a threat
R-who dares to raise issues

A) RPQ	B) QRP
C) PRQ	D) QPR

Answer & Explanation Answer: C) PRQ

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 7162

Q:

An object at rest may have

A) Momentum	B) Potential energy
C) Velocity	D) Kinetic energy

Answer & Explanation Answer: B) Potential energy

Explanation:

An object at rest may have Potential energy.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

14 7159

Q:

In plants, exchange of gases takes place through

A) Stomata	B) Palisade tissue
C) Spongy tissue	D) mid rib

Answer & Explanation Answer: A) Stomata

Explanation:

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Filed Under: Biology

48 7158

Q:

The lead character in the film ' The Bandit Queen ' has been played by

A) Shabana Azmi	B) Rupa Gangulu
C) Seema Biswas	D) Arundhati ray

Answer & Explanation Answer: C) Seema Biswas

Explanation:

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Filed Under: Books and Authors

10 7157

Q:

What are the reasons for process suspension?

Answer

swapping

interactive user request

timing

parent process request

Workspace

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Subject: Operating Systems

19 7155

Q:

Improve the bracketed part of the sentence.

Perhaps the wolf (was waiting) to spring upon him.

A) had been waited	B) has waited
C) could be waiting	D) no improvement

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