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Foetal Heart Rate Method MCQ Questions & Answers

Foetal Heart Rate Method MCQs : This section focuses on the "Foetal Heart Rate Method". These Multiple Choice Questions (MCQs) should be practiced to improve the Foetal Heart Rate Method skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

_______ are often used for splitting the beam.

A. Multilayer coated lenses
B. Silvered films
C. Silicate glasses
D. Half-silvered mirrors

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Question 2

_______ are optical systems, which provide better isolation of spectral energy than the optical filters.

A. Spectromators
B. Monochromators
C. Tocochromators
D. Baromators

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Question 3

A typical reflection grating may have 1200 grooves/mm, which means the grooves are spaced at about _______ intervals.

A. 800 nm
B. 600 nm
C. 860 nm
D. 680 nm

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Question 4

In sample holders, for such applications, a 50 cm path-length with about a ________ volume cell is employed.

A. 0.3 ml
B. 3 liters
C. 0.3 liters
D. 3 ml

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Question 5

In the radiation source, for work in the ultraviolet region, a _______ is used.

A. Tungsten lamp
B. Xenon-mercury arc
C. Deuterium discharge lamp
D. Hydrogen arc

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Question 6

Modern instruments use ________ light source in calorimeters and spectrophotmetry.

A. Xenon-mercury lamp
B. Tungsten-halogen lamp
C. Mercury arc
D. Deuterium discharge lamp

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Question 7

Most modern instruments now use a _______ as a dispersing element in the monochromator.

A. Prism monochromators
B. Holographic gratings
C. Diffraction gratings
D. Replica gratings

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Question 8

The energy must be reflected and returned through a single 30° prism, so that it passes through the prism in both directions is called __________

A. Cornu mounting
B. Mono mounting
C. Littrow mounting
D. Trio mounting

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Question 9

The expression relating the wavelength of the radiation and the angle (q) at which it is reflected is given by _________

A. ml = 2d sin q, where l= lambda
B. m = 2d sin q
C. ml = d sin q, where l= lambda
D. m = d sin q

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Question 10

The sample holder is generally inserted somewhere in the interval between the ______and _______

A. Silvered film and multi-layered coating
B. The light source and the detector
C. The light source and silvered film
D. Silvered film and the detector

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Question 11

The transmittance of interference filters varies between ________ % with a spectral bandwidth of 10 to 15 nm.

A. 15 to 20 %
B. 20 to 60 %
C. 10 to 20 %
D. 15 to 60 %

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Question 12

What are the wavelengths of quartz and fused silica respectively in a hydrogen discharge lamp?

A. 200 nm, 185 nm
B. 200 nm, 145 nm
C. 185 nm, 200 nm
D. 145 nm, 200 nm

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Question 13

What is reproduced from a master holographic grating by moulding its grooves onto a resin surface or silica substrate?

A. Diffraction grating
B. Replica grating
C. Silicate glasses
D. Fused silica

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Question 14

What is the most common and convenient source of light?

A. Xenon-mercury arc
B. Hydrogen discharge lamp
C. Neon-xenon arc
D. Tungsten lamp

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Question 15

What is the utilization wavelength limit for quartz?

A. 300 nm
B. 350 nm
C. 180 nm
D. 210 nm

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Question 16

Which material is used to reduce the reflections from glass surfaces?

A. Manganese Flouride
B. Magnesium oxide
C. Magnesium Flouride
D. Manganese oxide

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Question 17

Which of the following is the dielectric?

A. MgF3
B. ZnF2
C. ZnS
D. ZnF3

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Question 18

Which system may include lenses, mirrors, slits, diaphragm etc?

A. Radiant system
B. Optical system
C. Cardiac system
D. Photo system

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Question 19

With the use of _______ chromatic aberrations and other imperfections of the lenses are minimized.

A. Lenses
B. Mirrors
C. Slits
D. Diaphragm

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