Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering Page-4 section-11

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31.
An "orange peel" effect is observed

A. As a defect during metal casting/ welding

B. During deep drawing of metallic sheet having large grain size

C. During faulty heat treatment of steel

D. During extrusion of metal through a die

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32.
Pick out the wrong statement.

A. Seam welding, projection welding & spot welding are the classification of electrical resistance welding

B. Electrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t = plate thickness to be welded)

C. In spot welding, two pieces to be joined are overlapped and placed between two electrodes

D. Mild steel sheet can not be spot welded

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33.
The tensile strength of plastics ranges from __________ kg/mm².

A. 10 to 50

B. 50 to 100

C. 0.01 to 0.1

D. 0.1 to 10

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34.
Cobalt-60 is used as a source of __________ in medical therapy & industrial radiography.

A. X-rays

B. $$\gamma $$-rays

C. $$\alpha $$-rays

D. $$\beta $$-rays

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35.
Device used as a standard for the calibration of pressure gauges is a

A. Bellow

B. Diaphragm

C. Dead weight pressure tester

D. Mercury manometer

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36.
Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.

A. 80-120

B. 200-300

C. 600-800

D. 1000-1100

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37.
Hot extrusion of aluminium is done in the temperature range of __________ °C.

A. 550-600

B. 450-500

C. 350-400

D. 250-300

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38.
A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

A. Aqueous tension

B. Saturated humidity

C. Vapor pressure

D. Absolute humidity

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39.
Which of the following rays has the least wavelength?

A. Ultraviolet rays

B. Infrared rays

C. Cosmic rays

D. X-rays

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40.
A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

A. 6

B. 18

C. 38

D. 52

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

31. An "orange peel" effect is observed

Answer & Solution

32. Pick out the wrong statement.

Answer & Solution

33. The tensile strength of plastics ranges from __________ kg/mm².

Answer & Solution

34. Cobalt-60 is used as a source of __________ in medical therapy & industrial radiography.

Answer & Solution

35. Device used as a standard for the calibration of pressure gauges is a

Answer & Solution

36. Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.

Answer & Solution

37. Hot extrusion of aluminium is done in the temperature range of __________ °C.

Answer & Solution

38. A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

Answer & Solution

39. Which of the following rays has the least wavelength?

Answer & Solution

40. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.

Answer & Solution

Read More Section(Chemical Engineering Basics)

31.
An "orange peel" effect is observed

32.
Pick out the wrong statement.

33.
The tensile strength of plastics ranges from __________ kg/mm².

34.
Cobalt-60 is used as a source of __________ in medical therapy & industrial radiography.

35.
Device used as a standard for the calibration of pressure gauges is a

36.
Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.

37.
Hot extrusion of aluminium is done in the temperature range of __________ °C.

38.
A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its

39.
Which of the following rays has the least wavelength?

40.
A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².