Analytical Instrumentation Mock Test 1

10%

Question 1 of 10

1. Given below is the diagram of Flame emission photometers. Identify the unmarked component.

Filter

Burner

Pressure regulator

Atomiser

Question 1 of 10

Question 2 of 10

2. In Total consumption burner, only samples of particular droplet size will enter the burner.

True

False

Question 2 of 10

Question 3 of 10

3. Which of the following is false about the wavelengths of electromagnetic radiation?

Energy does not depend on wavelength

Energy depends on wavelength

Radiation with short wavelengths have high energies

Radiation with long wavelengths have low energies

Question 3 of 10

Question 4 of 10

4. The diagram show below is the picture of Hollow cathode lamp. Identify the unmarked component.

Glass tube

Mica shield

Quartz window

Non- conducting glass

Question 4 of 10

Question 5 of 10

5. Which of the following statement is false about double beam absorption instruments?

Both the beams after they pass through respective samples are compared

It is similar to single beam instruments except two beams are present

Reference beam must have a higher intensity than sample beam

Tungsten bulb is used as a source

Question 5 of 10

Question 6 of 10

6. Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent?

Gas liquid

Paper

Thin layer

Column

Question 6 of 10

Question 7 of 10

7. Which of the following is not a limitation of Beer Lambert’s law, which gives the relation between absorption, thickness and concentration?

Radiation source must be monochromatic

Radiation must have higher bandwidth

Does not consider factors other than thickness and concentration that affect absorbance

Concentration must be lower

Question 7 of 10

Question 8 of 10

8. Which of the following is not a fuel used in flame photometry?

Propane

Acetylene

Camphor oil

Hydrogen

Question 8 of 10

Question 9 of 10

9. Which of the following is not the requirement of a good flame in flame photometer?

Solid residue must decompose to form atoms

Liquid sample must be evaporated to form solid residue

Atoms must be produced such that they have the ability to get excited to higher states

Atoms must be produced such that they are in stable state

Question 9 of 10

Question 10 of 10

10. Which of the following is the advantage of prism monochromators?

Dispersion occurs in non-linear manner

Dispersion is non-overlapping

Dispersion occurs in a linear manner

Dispersion is overlapping

Question 10 of 10