A fire tube boiler is limited to a maximum steam pressure of about ______________ kg/cm2 ?
A fire tube boiler is limited to a maximum steam pressure of about ______________ kg/cm2 ?
A. 6
B. 18
C. 38
D. 52
Chemical Engineering Basics
Water hammer is caused in steam carrying pipelines, because of ______________________?
Water hammer is caused in steam carrying pipelines, because of ______________________?
A. Partial condensation of steam
B. Vibration of the pipeline
C. High degree of superheat of steam
D. Its exposure to torrential rain
Water hammer is caused in steam carrying pipelines, because of ______________________? Read More »
Chemical Engineering BasicsIn the diving apparatus, helium is used along with oxygen, because it is ____________________?
In the diving apparatus, helium is used along with oxygen, because it is ____________________?
A. Easily available
B. Not soluble in blood at high pressure
C. Lighter than nitrogen
D. Completely miscible with oxygen
Probability of cavitation occuring becomes very high, when the local _______________ resulting ?
Probability of cavitation occuring becomes very high, when the local _______________ resulting ?
in water bubbles formation, which on rupture cause cavitation
A. Pressure falls below the vapour pressure
B. Pressure becomes very high
C. Temperature becomes low
D. All A, B & C
The approximate height of a blast furnace having a useful volume of 2000 m3 is about _______________ metres ?
The approximate height of a blast furnace having a useful volume of 2000 m3 is about _______________ metres ?
A. 25
B. 35
C. 55
D. 75
Photographic plates are coated with _____________________?
Photographic plates are coated with _____________________?
A. Silver nitrate
B. Silver halide
C. Calcium silicate
D. Metallic silver
Photographic plates are coated with _____________________? Read More »
Chemical Engineering BasicsAir/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?
Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?
A. 9 : 1
B. 17 : 1
C. 23 : 1
D. 29 : 1
Which of the following gases cause global warming ?
Which of the following gases cause global warming ?
A. Carbon monoxide
B. Carbon dioxide
C. Nitrogen
D. Ozone
Which of the following gases cause global warming ? Read More »
Chemical Engineering BasicsPotable water means the water used for____________________?
Potable water means the water used for____________________?
A. Fire-fighting
B. Cooling
C. Drinking
D. Evaporation to produce steam
Potable water means the water used for____________________? Read More »
Chemical Engineering BasicsSoftening of hardened steel is done by its____________________?
Softening of hardened steel is done by its____________________?
A. Normalising
B. Tempering
C. Annealing
D. Carburising
Softening of hardened steel is done by its____________________? Read More »
Chemical Engineering Basics