Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering Page-4 section-9

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31.
Spherical shape of mercury droplets is due to its

A. High viscosity

B. Low surface tension

C. High density

D. High surface tension

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32.
Which of the following polymers is obtained by copolymerisation of three monomers?

A. SAN

B. ABS

C. SBR

D. PTFE

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33.
Metalloids . . . . . . . .

A. Are good conductor of heat & electricity

B. Act as electron donors with metals & as electron acceptor with non-metals

C. Are not necessarily solids at room temperature

D. Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

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34.
Temperature attained in soldering of metals is about __________ °C.

A. 150-300

B. 400-500

C. 650-800

D. 1000-1100

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35.
Methyl orange indicator turns

A. Orange yellow in alkaline medium

B. Orange yellow in acidic medium

C. Colourless in acidic medium

D. Colourless in basic medium

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36.
When an isolated thermodynamic system executes a process,

A. Work is done

B. Heat transfer takes place

C. Mass flow occurs across the boundary of the system

D. No chemical reaction takes place within the system

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37.
In chemical dehumidification process

A. Wet bulb temperature increases

B. Dry bulb temperature remains constant

C. Dew point temperature increases

D. Dry bulb temperature increases

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38.
In a fuel cell, chemical energy is converted into

A. Electrical energy directly

B. Mechanical energy

C. Electrical energy and stored therein

D. None of these

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39.
Out of the following surfaces, the emis-sivity will be minimum for

A. Aluminium foil

B. Concrete

C. Plaster

D. Smooth glass

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40.
Which set of materials is used as a moderator in nuclear reactor?

A. Zircalloy & berrylium

B. Zircalloy & heavy water

C. Zirconium & berrylium

D. Heavy water & berrylium

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

31. Spherical shape of mercury droplets is due to its

Answer & Solution

32. Which of the following polymers is obtained by copolymerisation of three monomers?

Answer & Solution

33. Metalloids . . . . . . . .

Answer & Solution

34. Temperature attained in soldering of metals is about __________ °C.

Answer & Solution

35. Methyl orange indicator turns

Answer & Solution

36. When an isolated thermodynamic system executes a process,

Answer & Solution

37. In chemical dehumidification process

Answer & Solution

38. In a fuel cell, chemical energy is converted into

Answer & Solution

39. Out of the following surfaces, the emis-sivity will be minimum for

Answer & Solution

40. Which set of materials is used as a moderator in nuclear reactor?

Answer & Solution

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31.
Spherical shape of mercury droplets is due to its

32.
Which of the following polymers is obtained by copolymerisation of three monomers?

33.
Metalloids . . . . . . . .

34.
Temperature attained in soldering of metals is about __________ °C.

35.
Methyl orange indicator turns

36.
When an isolated thermodynamic system executes a process,

37.
In chemical dehumidification process

38.
In a fuel cell, chemical energy is converted into

39.
Out of the following surfaces, the emis-sivity will be minimum for

40.
Which set of materials is used as a moderator in nuclear reactor?