QuizMaster

Why is it advantageous to record many FID signals from the same sample and then add them together?

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Question: Why is it advantageous to record many FID signals from the same sample and then add them together?
[A].

To ensure that all target nuclei in the sample have been excited

[B].

To remove inaccuracies caused by fluctuations in the applied magnetic field

[C].

To increase sensitivity

[D].

None of the above

Answer: Option C

Explanation:

No answer description available for this question.

In FT-NMR, how are nuclei excited?

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Question: In FT-NMR, how are nuclei excited?
[A].

By radio-frequency radiation whose frequency is swept across a predetermined range

[B].

By an intense pulse of radiation which contains a wide range of frequencies

[C].

By an intense pressure

[D].

None of the above

Answer: Option A

Explanation:

No answer description available for this question.

FLIMSY

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Question: FLIMSY
[A].

Frail

[B].

Filthy

[C].

Firm

[D].

Flippant

Answer: Option C

Explanation:

No answer description available for this question.

Which of the following network types have a designated router and a backup designated router assigned?

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Question: Which of the following network types have a designated router and a backup designated router assigned?

[A].

1, 2 and 3

[B].

1 and 3

[C].

3 and 4

[D].

All of the above

Answer: Option B

Explanation:

No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke topology. DR and BDR are elected on broadcast and non-broadcast multi-access networks. Frame Relay is a non-Broadcast Multi-Access (NBMA) network by default.

Enzyme-driven metabolic pathways can be made more efficient by

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Question: Enzyme-driven metabolic pathways can be made more efficient by
[A].

concentrating enzymes within specific cellular compartments

[B].

grouping enzymes into free-floating, multienzyme complexes

[C].

fixing enzymes into membranes so that they are adjacent to each other

[D].

All of the above

Answer: Option D

Explanation:

No answer description available for this question.

In the gaseous phase ammonia formation reaction (N2 + 3H2 2NH3), the value of the equilibrium constant depends on the

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Question: In the gaseous phase ammonia formation reaction (N2 + 3H2 2NH3), the value of the equilibrium constant depends on the
[A].

total pressure of the system.

[B].

volume of the reactor.

[C].

temperature.

[D].

initial concentration of N2 and H2.

Answer: Option C

Explanation:

No answer description available for this question.

For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.

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Question: For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law.
[A].

increases

[B].

decreases

[C].

remains same

[D].

either (a) or (b); depends on the gas

Answer: Option A

Explanation:

No answer description available for this question.