Related Questions

Ionisation potential employed in the industrial electrostatic precipitator is of the order of
A 30 to 70 kV DC
B 30 to 70 kV AC
C 230 V AC
D 230 V 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
Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.
A 5
B 25
C 55
D 75
In a period from Li to F, ionisation potential
A Cannot be predicted
B Increases
C Decreases
D Remains same
Certain type of materials generates an electrostatic charge or voltage when mechanical force is applied across them. Such materials are called
A Piezo-electric
B Photo-electric
C Thermo-electric
D Photo-resistive
তড়িৎদ্বার দুটির বিজারণ বিভব যথাক্রমে -0.76 V এবং +0.80 V । এই তড়িৎদ্বার দুটি দ্বারা তৈরি কোষের মোট বিভব কত? (The reduction potentials of two electrodes same are -0.76 V and +0.80 V, respectively. what is the EMF of a cell constructed using these two electrodes?)
A -0.04 V
B +0.04 V
C -1.56 V
D +1.56 V
If Bashar can run around a ground four times in 20 minutes and Rahim can run around the same ground three times in 12 minutes, who can run around that ground more times in an hour, and how many times more can he run around ?
A Bashar, three times more
B Rahim , three times more
C They both go around 12 times
D Bashar, eight times more
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A fly crawls around the outside of a circle once.A second fly crawls around the outside of a square once.Which fly travels further ? (1) The diagonal of the square is equal to the diagonal of the circle.(2) The fly crawling around the circle took more time to complete has journey than the fly cawing around the square.
A A
B B
C C
D D
Yield of pitch from distillation of high temperature tar is around __________ percent.
A 10
B 25
C 65
D 100

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