Questions

Q:

Which law relates to the ideal gas law?

A) P1T1 = P2T2 B) P1/V1 = P2/V2
C) P1V1 = P2V2 D) T1/V1 = T2/V2
 
Answer & Explanation Answer: C) P1V1 = P2V2

Explanation:

Ideal Gas Law ::

The Combined gas law or General Gas Equation is obtained by combining Boyle's Law, Charles' Law, and Gay-Lussac's Law. It shows the relationship between the pressure, volume, and temperature for a fixed mass (quantity) of gas:

P1V1T1 = P2V2T2

 

Hence, the Boyle's law P1V1 = P2T2, relates to ideal gas equation.

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Filed Under: Physics
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Q:

Who Invented Elevator Safety Brake ?

A) Alfred Bernhard Nobel B) Elisha Graves Otis
C) Percy LeBaron Spencer D) Garrett Augustus Morgan
 
Answer & Explanation Answer: B) Elisha Graves Otis

Explanation:
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Filed Under: Inventions

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Q:

Of the following, which did not influence the fathers of Indian constitution? The Constitution of 

A) The USA B) The USSR
C) Canada D) Ireland
 
Answer & Explanation Answer: B) The USSR

Explanation:
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Q:

Nitrogenous Food is

A) Proteins B) Carbohydrates
C) Salts D) Lipids
 
Answer & Explanation Answer: A) Proteins

Explanation:

Here the Nitrogenous Food is Proteins.

Nitrogenous Food ::

The animal body is more than a machine. It requires fuel to enable it not only to work but also to live, even without working. A part of the food eaten must go to maintain the body

Nitrogenous food compounds are sometimes classed together under the name of proteins. These may be divided into proteids, gelatinoids, and extractives.

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Filed Under: Biology
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Q:

What is Kerberos?

Answer

It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.

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Subject: Networking
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Q:

Which of the following properties is found only in ferromagnetic materials ?

A) Susceptibility independent of temperature B) Point in a particular direction
C) Hysteresis D) Attracting a magnetic substance
 
Answer & Explanation Answer: C) Hysteresis

Explanation:
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Q:

A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

A) conduction and convection only B) conduction and radiation only
C) convection and radiation only D) conduction, convection and radiation
 
Answer & Explanation Answer: D) conduction, convection and radiation

Explanation:

Part of the heat is conducted away by the metal table. Convection currents in air near the surface of the coffee are set up which accounts for some heat loss. Heat is also lost by radiation from the hot coffee to the surroundings. Most of the heat is lost by the last method.

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Filed Under: Physics

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Q:

Ethernet uses which topology

A) Star B) Bus
C) Twisted pair D) Both B & C
 
Answer & Explanation Answer: B) Bus

Explanation:

Ethernet uses Bus topology.

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