Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?
A. Styrofoam
B. Lucite
C. Perspex
D. Plexiglass
Chemical Engineering Basics
Maximum permissible air velocity in pipelines is about ______________ metre/second ?
Maximum permissible air velocity in pipelines is about ______________ metre/second ?
A. 5
B. 10
C. 20
D. 40
Resilience of a bolt can be increased by increasing its __________________?
Resilience of a bolt can be increased by increasing its __________________?
A. Length
B. Shank diameter
C. Head diameter
D. None of these
______________________ temperature remains constant during adiabatic saturation process of unsaturated air ?
______________________ temperature remains constant during adiabatic saturation process of unsaturated air ?
A. Dew point
B. Dry bulb
C. Wet bulb
D. None of these
The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?
The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is__________________?
A. Magnesite
B. Chrome
C. Silica
D. Fireclay
Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about _______________ percent ?
Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about _______________ percent ?
A. 1
B. 10
C. 30
D. 50
Work done by a/an _________________ process is determined by ∫p. dv ?
Work done by a/an _________________ process is determined by ∫p. dv ?
A. Adiabatic
B. Quasi-static
C. Isothermal
D. Isentropic
In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) ?
In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.) ?
A. t = 15 – 0.0065 h
B. t = 15 + 0.0065 h
C. t = 0.0035 h – 15
D. t = 15 – 0.0035 h
Induced draft fans provided in large thermal power plant boilers have __________________ blades?
Induced draft fans provided in large thermal power plant boilers have __________________ blades?
A. Forward curved
B. Backward curved
C. Double curved
D. Radial or straight
Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories ?
Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories ?
A. A, C, B, D
B. D, B, C, A
C. D, C, B, A
D. D, A, B, C