Chemical Engineering - Chemical Engineering Basics

21. 

Runga-Kutta method is used to solve a/an

A. ordinary differential equation of nth order.
B. simultaneous non-linear equation.
C. linear differential equation.
D. none of these.

Answer: Option B

Explanation:

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22. 

Recrystallisation temperature of steel is __________ °C.

A. 50
B. 300
C. 500
D. 800

Answer: Option D

Explanation:

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23. 

Pressure required to increase the density of water by about 1% is __________ atmosphere.

A. 10
B. 50
C. 200
D. 1000

Answer: Option C

Explanation:

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24. 

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. annealing
B. toughening
C. work hardening
D. tempering

Answer: Option A

Explanation:

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25. 

The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the

A. fatigue strength
B. creep strength
C. resilience
D. endurance limit

Answer: Option D

Explanation:

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