Related Questions

Bunsen burner is an example of a/an __________ burner.
A inside mixing/premix type
B submerged combustion
C rotary cup
D outside mixing/diffusion flame/nozzle mix type
Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?
A 10%
B 33.3%
C 40%
D 42.5%
Blue colour is imparted to glass by the addition of
A FeSO4
B PbO
C CaO
D NaOH
Actual flame temperature is always lower than the adiabatic flame temperature, because there is
A No possibility of obtaining complete combustion at high temperature
B Always loss of heat from the flame
C Both A & B
D Neither A nor B
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
শিখা পরীক্ষায় ইটের মত লাল বর্ণ প্রদর্শন করলে লবণটিতে উপস্থিত- (A brick red coloration in flame test of a salt indicates the presence of -)
A ক্যালসিয়াম (calcium)
B পটাসিয়াম (potassium)
C কপার (copper)
D সোডিয়াম (sodium)
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of
A Electromagnets
B Cams or eccentric shafts
C Unblanced fly wheels
D Either A, B or C
The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________ efficiency.
A Hydraulic
B Mechanical
C Overall
D None of these
নিচের কোনটি শিখা পরীক্ষা (flame test ) (colour ) প্রদান করে না ?
A    K+
B Ca+
C  Cu2+
D     Mg2+

Next steps