Chemical Engineering Basics

51. __________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

1. Tensile
2. Fatigue
3. Impact
4. None of these

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52. __________ test is the appropriate test to determine whether a material is ductile or brittle.

1. Impact
2. Cupping
3. Hardness
4. Tensile

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53. __________ the exhaust gas is an indication of the incomplete combustion of fuel.

1. Low temperature of
2. High temperature of
3. High % of CO in
4. High % of CO2 in

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54. __________ wire is never used for making the heating element.

1. Nichrome
2. Kanthal
3. Invar
4. None of these

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55. A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec² is

1. 8.82
2. 9.81
3. 10.88
4. 0.95

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56. A common disinfectant used in village wells for disinfection of water is

1. Free chlorine
2. Bromine
3. Iodine
4. Potassium permanganate

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57. A compact estimate about the amount of materials handling between various work stations is obtained from the

1. Gantt chart
2. Bin chart
3. String diagram
4. Travel chart

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58. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

1. 0
2. 0.33
3. 0.44
4. 0.25

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59. A dense structure of grinding wheel is not used for the

1. Ductile material
2. Hard materials
3. Brittle materials
4. Finishing cuts

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60. A dummy activity is used in PERT network to describe the

1. Precedence relationship
2. Resource idleness
3. Resource restriction
4. Necessary time delay

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