Chemical Engineering Basics

281. Galvanic corrosion cannot be prevented by

1. Cathodic protection
2. Anodic protection
3. Usage of largest possible anodic area
4. Any one of these

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282. Ganister contains maximum percentage of

1. FeO
2. SiO₂
3. MgO
4. MnO₂

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283. Gantt charts are used for streamlining the

1. Inventory control
2. Production schedule
3. Sales forecasting
4. Quality control

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284. Gas turbine normally employs a constant __________ cycle.

1. Pressure
2. Temperature
3. Volume
4. None of these

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285. Glass reacts with

1. H₂SO₃
2. HF
3. HNO₃
4. K₂Cr₂O₇

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286. Globular form of cementite is formed during the __________ process.

1. Spheroidising
2. Hardening
3. Annealing
4. Normalising

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287. Glycerine is used as a coolant in cooling of some engines instead of water, because

1. Its higher boiling point (290°C) increases its heat carrying capacity
2. Comparatively less weight of coolant is required
3. Smaller radiator can be used
4. All a, b & c

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288. Good design of the casing of a centrifugal pump aims at minimising the

1. Cavitation
2. Frictional losses
3. Kinetic energy loss
4. Static head

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289. Gratings is associated with the measurement of

1. Linear displacement
2. Concavity/convexity
3. Surface texture
4. Flatness

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290. Gross national product (GNP) means the total value of __________ in a country.

1. Goods produced
2. Gold reserve
3. Earning of the citizens
4. Taxes paid

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