Discussion
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- Question
Energy of the sun arises mainly from __________ reactions.
Options- A. fusion
- B. fission
- C. combustion
- D. none of these
- Correct Answer
- fusion
- 1. Sudden fall of atmospheric pressure by a large amount is an indication of the
Options- A. rain
- B. cold wave
- C. storm
- D. fair weather Discuss
- 2. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
Options- A. 60 - 100
- B. 400 - 700
- C. 1200 -1500
- D. 2000 - 2300 Discuss
- 3. In extrusion of metals, which of the following statement is true?
Options- A. speed of the extruded material is same as that of ram speed.
- B. Redundant work is a function of the die angle.
- C. Relative motion between the billet surface and the container wall is always present.
- D. Hollow ram is used for indirect extrusion. Discuss
- 4. Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of
Options- A. Grashoff number.
- B. Grashoff number & Reynolds number.
- C. Reynolds number.
- D. Grashoff number & Prandtl number. Discuss
- 5. In the blast furnace, incorporation of water vapour in the blast gives the following effect.
Options- A. Increases the reducing potential of the gas.
- B. Increases the flame temperature.
- C. No significant change occurs.
- D. Increases the hydrogen content in the metal. Discuss
- 6. Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.
Options- A. grey
- B. black
- C. opaque
- D. white Discuss
- 7. A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 .
Options- A. 10
- B. 30
- C. 50
- D. 80 Discuss
- 8. Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.
Options- A. cementite
- B. austenite
- C. martensite
- D. pearlite Discuss
- 9. Copper deposits are found in India at the following location:
Options- A. Kudremukh
- B. Kolar
- C. Khetri
- D. Ramagundam Discuss
- 10. Wrought iron is never shaped by
Options- A. casting
- B. cold working
- C. forging
- D. welding Discuss
Chemical Engineering Basics problems
Search Results
Correct Answer: storm
Correct Answer: 400 - 700
Correct Answer: Hollow ram is used for indirect extrusion.
Correct Answer: Grashoff number & Prandtl number.
Correct Answer: Increases the reducing potential of the gas.
Correct Answer: grey
Correct Answer: 80
Correct Answer: austenite
Correct Answer: Khetri
Correct Answer: casting
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