MCQsDrive | MCQsDrive

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

A wall has two layers of materials A and B; each made of a different material. Both the layers have the same thickness. The thermal conductivity of material A is twice that of B. Under the equilibrium, the temperature difference across the wall is 36°C. The temperature difference across the layer A is ______________ °C?

A 6

B 12

C 18

D 24

Review Detailed Answer

Correct Answer: 12

Temperature profile in steady state heat transfer is________________?

A Asymptotic

B Hyperbolic

C Parabolic

D Linear

Review Detailed Answer

Correct Answer: Linear

Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around _____________ metres/second?

A 1

B 10

C 20

D 30

Review Detailed Answer

Correct Answer: 1

A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun ?

A Yellow paint

B White paint

C Black paint

D Grey paint

Review Detailed Answer

Correct Answer: Black paint

Three materials A, B and C of equal thickness and of thermal conductivity of 20, 40 & 60 kcal/hr. m. °C respectively are joined together. The temperature outside of A and C are 30°C and 100°C respectively. The interface between B and C will be at a temperature of ____________ °C?

A 40

B 95

C 70

D 50

Review Detailed Answer

Correct Answer: 70

The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of ‘n’ is exactly 4 for__________________?

A Black painted bodies only

B All bodies

C Polished bodies only

D A black body

Review Detailed Answer

Correct Answer: All bodies

Evaporation by thermo compression results in the _________________________?

A Saving of steam

B Realisation of multiple effect economy in a single effect

C Both A. and B.

D None of these

Review Detailed Answer

Correct Answer: Both A. and B.

Use of transverse baffles in a shell and tube heat exchanger is done to increase the___________________?

A Rate of heat transfer

B Flow velocity

C Turbulence of shell side fluid

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

Which of the following situations can be approximated to a steady state heat transfer system ?

A A red hot steel slab (having outside surface temperature as 1300°C) exposed to the

B 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe

C Boiling brine kept in open vessel when the bottom surface temperature of the vessel is

D A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper

Review Detailed Answer

Correct Answer: 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe

Heat transfer by ____________ may not necessarily require the presence of a medium?

A Conduction

B Natural convection

C Forced convection

D Radiation

Review Detailed Answer

Correct Answer: Radiation

Showing 181 to 190 of 510 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Temperature profile in steady state heat transfer is________________?

Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around _____________ metres/second?

A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun ?

Three materials A, B and C of equal thickness and of thermal conductivity of 20, 40 & 60 kcal/hr. m. °C respectively are joined together. The temperature outside of A and C are 30°C and 100°C respectively. The interface between B and C will be at a temperature of ____________ °C?

The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of ‘n’ is exactly 4 for__________________?

Evaporation by thermo compression results in the _________________________?

Use of transverse baffles in a shell and tube heat exchanger is done to increase the___________________?

Which of the following situations can be approximated to a steady state heat transfer system ?

Heat transfer by ____________ may not necessarily require the presence of a medium?