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Chemical Engineering Basics

The difference between gross & net calorific values of fuel is due to the___________________?

August 19, 2021February 8, 2019 by admin
The difference between gross & net calorific values of fuel is due to the___________________?

A. Sensible heat carried away by the flue gases
B. Heat carried away by the steam from the moisture content of the fuel
C. Heat lost by radiation
D. Heat carried away by steam from the combustion of hydrogen in the fuel

Categories Chemical Engineering Basics

Speisses is a mixture of the following ?

August 19, 2021February 8, 2019 by admin
Speisses is a mixture of the following ?

A. Arsenides of heavy metals
B. Antimonides of heavy metals
C. Arsenides & antimonides of heavy metals
D. Iron, cobalt and nickel

Categories Chemical Engineering Basics

Factor of safety in machine design is defined as the ratio of ultimate stress to _____________ stress ?

August 19, 2021February 8, 2019 by admin
Factor of safety in machine design is defined as the ratio of ultimate stress to _____________ stress ?

A. Working
B. Bearing
C. Yield
D. None of these

Categories Chemical Engineering Basics

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the ______________ temperature of air?

August 19, 2021February 8, 2019 by admin
Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the ______________ temperature of air?

A. Wet bulb
B. Dry bulb
C. Saturation
D. Dew point

Categories Chemical Engineering Basics

The elastic strain in copper is due to the__________________?

August 19, 2021February 8, 2019 by admin
The elastic strain in copper is due to the__________________?

A. Motion of dislocations
B. Stretching of atomic bonds
C. Breakage of atomic bonds
D. None of the above

Categories Chemical Engineering Basics

Which of the following fastening devices has a head at one end and a nut fitted to the other ?

August 19, 2021February 8, 2019 by admin
Which of the following fastening devices has a head at one end and a nut fitted to the other ?

A. Bolt
B. Stud
C. Top bolt
D. None of these

Categories Chemical Engineering Basics

Chromium molybdenum steel cannot be welded using ______________ welding ?

August 19, 2021February 8, 2019 by admin
Chromium molybdenum steel cannot be welded using ______________ welding ?

A. Thermit
B. Electrical resistance
C. Oxy-acetylene
D. Any of these

Categories Chemical Engineering Basics

Nitriding of a steel part does not increase its__________________?

August 19, 2021February 8, 2019 by admin
Nitriding of a steel part does not increase its__________________?

A. Grain size
B. Fatigue limit
C. Surface hardness
D. Wear resistance

Categories Chemical Engineering Basics

Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by_________________?

August 19, 2021February 8, 2019 by admin
Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by_________________?

A. Conduction
B. Convection
C. Radiation
D. Both A. & B.

Categories Chemical Engineering Basics

Evaporative cooling process employs a combination of cooling and humidification in which the____________________?

August 19, 2021February 8, 2019 by admin
Evaporative cooling process employs a combination of cooling and humidification in which the____________________?

A. Sensible heat is added
B. Sensible heat is removed and the latent heat is added
C. Latent heat is removed
D. Sensible heat is added and latent heat is removed

Categories Chemical Engineering Basics
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