Ionisation potential employed in the industrial electrostatic precipitator is of the order of

Ionisation potential applied across the electrodes of electrostatic tar precipitator is around

A

230 V AC

B

60 KV AC

C

230 V DC

D

60 KV DC

Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the

A

Hot scarfing of steel slabs

B

Mixing with blast furnace gas

C

Coke oven battery heating

D

Steel ladle drying

The dust collection efficiency of electrostatic precipitator increases with increase in the

A

Gas flow rate

B

Electrode area

C

Both A & B

D

Neither A nor B

In a period from Li to F, ionisation potential

A

Cannot be predicted

B

Increases

C

Decreases

D

Remains same

A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?

A

1

B

114

C

134

D

112

The element with highest first ionisation energy is

A

Hydrogen

B

Helium

C

Lithium

D

Sodium

Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has

A

High bond dissociation energy

B

Smaller atomic radius

C

Stable half filled 2p sub level

D

High nuclear charge

A cottrel precipitator makes use of the __________ for dusty air cleaning.

A

Electric spark

B

Corrona discharge

C

Alternating current

D

None of these

A farmer employed 36 labor to dig a pond in 15days, but after 10 days of work he discovered that only 50% of the work was done. How many additional labors are to be employed for completing the job in time?

A

25

B

30

C

32

D

34

Japan's industrial success is.......... in part to its tradition of group effort and............as opposed to the emphasis on personal achievement that is prominent aspect of other industrial nations.

A

responsive.......... independence

B

related........ introspection

C

equivalent........ solidarity

D

subordinate............ individuality

Ionisation potential employed in the industrial electrostatic precipitator is of the order of

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