Chemical Engineering - Chemical Engineering Basics

1. 

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

A. steel
B. lignite
C. water
D. lime stone

Answer: Option C

Explanation:

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2. 

In which of the following reactions, application of vacuum will help ?

A. Number of gas molecules in the product side is more than that on the reactant side.
B. Number of gas molecules in the reactant side is more than that on the product side.
C. Number of gas molecules are the same on both the reactant & the product side.
D. None of the above.

Answer: Option D

Explanation:

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3. 

Inspection of surface and sub-surface cracks in non-magnetic alloys is done by __________ testing method.

A. X-ray
B. magnetic particle
C. dye penetrant
D. ultrasonic

Answer: Option C

Explanation:

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4. 

Pick out the wrong statement.

A. The equivalent stiffness of two springs (of equal stiffness 'S') in series is S/2 while in parallel is 2S.
B. For a helical spring, deflection is proportional to D3 (D = mean coil diameter) or d4 (d = wire diameter)
C. Crushing load or columns is less than the buckling load.
D. Modulus of resilience is proportional to ( stress at elastic limit)2 .

Answer: Option C

Explanation:

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5. 

Which of the following exemplifies resemblence with the extrusion process ?

A. Pneumatic ejection of abrasive solid particles through a nozzle.
B. Toothpaste pouring out of the tube.
C. Ejection of abrasive slurry through an opening.
D. Viscous lubricant pouring out through its container's mouth.

Answer: Option B

Explanation:

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