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Chemical Engineering Basics

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the___________________?

August 20, 2021February 10, 2019 by admin
Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the___________________?

A. Length of the pipe
B. Diameter of the pipe
C. Density of the fluid
D. Velocity of the fluid

Categories Chemical Engineering Basics

Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?

August 20, 2021February 10, 2019 by admin
Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?

A. Cold
B. Work
C. Age
D. Induction

Categories Chemical Engineering Basics

_____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?

August 20, 2021February 10, 2019 by admin
_____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?

A. Borosilicate
B. High silica
C. Supermax
D. Lead

Categories Chemical Engineering Basics

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity) ____________________?

August 20, 2021February 10, 2019 by admin
Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity) ____________________?

A. 1/k
B. k
C. k2
D. 1/k2

Categories Chemical Engineering Basics

During sensible heating of humid air__________________?

August 20, 2021February 10, 2019 by admin
During sensible heating of humid air__________________?

A. Relative humidity increases
B. Dew point remains constant
C. Dry bulb & wet bulb temperature increases
D. Both B & C

Categories Chemical Engineering Basics

During sensible cooling of air, its wet bulb temperature ?

August 20, 2021February 10, 2019 by admin
During sensible cooling of air, its wet bulb temperature ?

A. Decreases but dew point remains constant
B. Increases but dew point remains constant
C. Increases & the dew point decreases
D. Decreases & the dew point increases

Categories Chemical Engineering Basics

Function of gear box is to____________________?

August 20, 2021February 10, 2019 by admin
Function of gear box is to____________________?

A. Reduce the speed
B. Obtain variable speed
C. Increase the speed
D. Produce high torque

Categories Chemical Engineering Basics

Carbon supply in pack carburising process is in the form of ___________________?

August 20, 2021February 10, 2019 by admin
Carbon supply in pack carburising process is in the form of ___________________?

A. Charcoal
B. Calcium carbide
C. Hydrocarbon oil
D. Graphite

Categories Chemical Engineering Basics

Heat release during phase change is observed in case of a/an_________________?

August 20, 2021February 10, 2019 by admin
Heat release during phase change is observed in case of a/an_________________?

A. Boiler
B. Condenser
C. Evaporator
D. All A. B. & C.

Categories Chemical Engineering Basics

Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are _______________ respectively ?

August 20, 2021February 10, 2019 by admin
Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are _______________ respectively ?

A. 70 & 30
B. 30 & 70
C. 50 & 50
D. 90 & 10

Categories Chemical Engineering Basics
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