Chemical Engineering - Chemical Engineering Basics

46. 

In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be

A. conduction
B. radiation
C. natural convection
D. forced convection

Answer: Option B

Explanation:

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47. 

Optical activity is a/an __________ property.

A. additive
B. constitutive
C. both (a) & (b)
D. neither (a) nor (b)

Answer: Option C

Explanation:

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48. 

Solution loss reaction occurs

A. in the blast furnace shaft.
B. during pretreatment of hot metal.
C. in the L.D. process.
D. during deoxidation in the ladle.

Answer: Option A

Explanation:

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49. 

Out of the following materials, the one which generally exhibits an yield point is

A. hard bronze
B. soft brass
C. cold rolled mild steel
D. hot rolled mild steel

Answer: Option D

Explanation:

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50. 

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T1 and T2 is given by

A. T1/(T1-T2)
B. T2/(T1-T2)
C. T1/T2
D. T2/T1

Answer: Option B

Explanation:

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