Bell metal is an alloy of
Question: Bell metal is an alloy of
[A].
copper & zinc
copper & tin
copper & nickel
zinc & tin
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
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Alcohol is produced by the
Question: Alcohol is produced by the
[A].oxidation of an aldehyde [B].
hydrolysis of an ether [C].
esterification of a fat [D].
none of these Answer: Option B
Explanation:
No answer description available for this question.
The addition of antimony in tin-based alloys improves its________________?
The addition of antimony in tin-based alloys improves its________________?A. Rupture strength and hot hardness
B. Impact strength and bonding strength
C. Deformation resistance
D. Wear resistanceA 2-4 heat exchanger involves
Question: A 2-4 heat exchanger involves
[A].only counter-flow of fluids. [B].
only parallel-flow of fluids. [C].
both counter and parallel-flow of the fluids. [D].
smaller pressure drop compared to 1-2 exchanger. Answer: Option C
Explanation:
No answer description available for this question.
Helmholtz free energy (A) is defined as
Question: Helmholtz free energy (A) is defined as
[A].A = H – TS [B].
A = E – TS [C].
A = H + TS [D].
none of these Answer: Option B
Explanation:
No answer description available for this question.
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the
Question: Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the
[A].mass transfer co-efficient. [B].
thermal diffusivity. [C].
kinematic viscosity. [D].
volumetric diffusivity. Answer: Option A
Explanation:
No answer description available for this question.
Melting point & boiling points of liquid oxygen are respectively – 218.8°C & – 183°C, while the same for liquid nitrogen is – 210°C & – 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
Question: Melting point & boiling points of liquid oxygen are respectively – 218.8°C & – 183°C, while the same for liquid nitrogen is – 210°C & – 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
[A].°C [B].
°F [C].
°K [D].
°R Answer: Option B
Explanation:
No answer description available for this question.