The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called

K produces 100 parts twice as fast as G does. G produces 100 parts in 40 minutes. If each produces parts at a constant rate, how many parts will K produces in 6 minutes.

A

30

B

25

C

20

D

15

For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will

A

Increase

B

Decrease

C

Increase or decrease depending on the fuel type

D

Not change

Deficiency of combustion air during combustion of a gaseous fuel

A

Lengthens the flame

B

Causes heat loss of fuel by its partial combustion

C

Both A & B

D

Shortens the flame

The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is

A

More

B

Less

C

Some

D

Either more or less ; depends on the nature of vapor

Higher efficiency in the combustion of solid fuel can not be achieved by

A

Proper fuel preparation

B

Keeping the flue gas exhaust temperature very high

C

Adopting efficient-fuel firing technique & equipment

D

Supplying correct quantity of combustion air

He was wise enough to accept the offer. Here 'enough' is

A

Adjective

B

preposition

C

Adverb

D

Conjunction

He was wise enough to accept the office. here "enough" is--

A

adjective

B

verb

C

adverb

D

conjunction

she sings well enough . Here 'enough is __

A

a verb

B

an adjective

C

an adverb

D

noun

The saying ' Enough is enough ' is used to mean _

A

something to stop

B

something to continue

C

to stop behaving badly

D

instructions are clear

The saying ' enough is enough' is used when you want-

A

something to continue

B

something to stop

C

something to continue until it's enough

D

to tell instructions are clear

The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called

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