Questions

Q:

Q = mcdT refers to

A) Enthalpy formula B) Heat Transfer formula
C) Specific Heat formula D) Heat of Vaporization
 
Answer & Explanation Answer: C) Specific Heat formula

Explanation:

Q = mc∆T refers to Specific Heat formula.

 

When heat energy is added to a substance, the temperature will change by a certain amount.

The relationship between heat energy and temperature is different for every material, and the specific heat is a value that describes how they relate.

 

Q = mc∆T

 

Q = heat energy (Joules, J)

m = mass of a substance (kg)

c = specific heat (units J/kg∙K)

∆T = change in temperature (Kelvins, K)

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2 4214
Q:

Which of the following is an element

A) alumina B) brass
C) graphite D) silicon
 
Answer & Explanation Answer: D) silicon

Explanation:
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Filed Under: Chemistry

0 4213
Q:

Which Stack is used in 8086?

Answer

FIFO (First In First Out) stack is used in 8086. In this type of Stack the First Stored Information is retrieved first.

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Subject: Hardware

0 4213
Q:

What is backup?

A) Connect his network to more component B) Copy to save a data from original source to other destination
C) Filter an old data from new data D) Access data from tape
 
Answer & Explanation Answer: B) Copy to save a data from original source to other destination

Explanation:
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Exam Prep: Bank Exams

6 4212
Q:

Rolling friction is caused by ____ from the following?

A) Non-elastic effects B) Gravity
C) Power dissipation D) Buoyancy
 
Answer & Explanation Answer: A) Non-elastic effects

Explanation:

Rolling friction or rolling drag is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects, that is, not all the energy needed for deformation of the wheel, roadbed, etc... is recovered when the pressure is removed.

Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy.

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10 4211
Q:

The energy associated with motion is called

A) Potential energy B) Kinetic energy
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Kinetic energy

Explanation:

Energy can be either a potential energy or a kinetic energy.

The energy associated with motion is called Kinetic energy and it can be stored. And the energy associated with position is called Potential energyand it cannot be stored.

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8 4210
Q:

Antibiotics are mostly obtained from

A) Viruses B) Fungi
C) Bacteria D) Angiosperms
 
Answer & Explanation Answer: B) Fungi

Explanation:
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Filed Under: General Science
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8 4210
Q:

Who has been appointed as Chairman and Managing Director of Hindustan Copper Limited (HCL) in 2017 ?

A) Debasis Jana B) Sankara Rao
C) Dev Patel D) Santosh Sharma
 
Answer & Explanation Answer: D) Santosh Sharma

Explanation:
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Filed Under: General Awareness
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7 4209