Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Magnetic Deflection Mass Spectrometer Questions & Answers
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Multiple Choice Questions > Magnetic Deflection Mass Spectrometer Questions & Answers

Magnetic Deflection Mass Spectrometer Questions & Answers

Last updated: November 27, 2021 5:38 pm
Editorial Staff
Multiple Choice Questions
No Comments
Share
4 Min Read
SHARE

Magnetic Deflection Mass Spectrometer Questions & Answers

1. Which of the following produces the electron beam in magnetic deflection mass spectrometer?

a) Tungsten filament
b) Quartz rod
c) Silica
d) Rhodium filament

Answer: a

Explanation: Tungsten filament produces the electron beam in magnetic deflection mass spectrometer. The electrons are produced by the heated filament.

2. In magnetic deflection mass spectrometer, in which of the following ways is acceleration applied to the direction of motion?

a) In random manner
b) Parallel to it
c) Perpendicular to it
d) Along it

Answer: c

Explanation: Acceleration in mass spectrometer, is applied perpendicular to the direction of motion. The velocity of the object remains constant.

3. Direct focussing is obtained by deflecting the ion beam along a _________ trajectory through the magnetic field.

a) 120o
b) 150o
c) 190o
d) 180o

Answer: d

Explanation: Direct focussing is obtained by deflecting the ion beam along a 180o trajectory through a magnetic field. The gap between the poles must be large enough to contain the ion source.

4. Which of the following separate the ions according to their mass-to-charge?

a) Ion source
b) Detector
c) Magnetic sector
d) Electric sector

Answer: c

Explanation: Magnetic sector will separate the ions according to their mass-to-charge. The magnet will decide the mass to charge ratio.

5. Mattauch-Herzog geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?

a) √2Π
b) Π/2
c) Π/3√4
d) Π/4√2

Answer: d

Explanation: Mattauch-Herzog geometry involves a deflection of Π/4√2 radians in a radial electrostatic field analyser. It is followed by a magnetic deflection of Π/2 radians.

6. Which of the following leads to limitation of resolution?

a) All ions do not have same energy
b) All ions do not have same charge
c) All ions are not of the same size
d) All ions do not have the same charge

Answer: a

Explanation: The resolution is limited as all ions do not have the same energy. Hence, the ions would not have the same velocity.

7. The electric sector field is not subject to hysteresis.

a) True
b) False

Answer: a

Explanation: The electric sector field is not subject to hysteresis. Hence, the relationship between mass to charge ratio and accelerating voltage is linear.

8. Which of the following components need to be added in order to increase the resolution?

a) Ion source
b) Detector
c) Magnetic sector
d) Electric sector

Answer: d

Explanation: Electric sector needs to be added in order to increase the resolution. This compensates for the decrease in resolution due to varying velocities.

9. Which of the following is commonly varied in magnetic deflection mass spectrometer?

a) Electric sector
b) Magnetic fold strength
c) Magnetic constant
d) Electric constant

Answer: b

Explanation: Magnetic fold strength is usually varied in magnetic deflection mass spectrometer. Electric sector is kept constant.

10. Nier-Johnson geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?

a) Π
b) Π/2
c) Π/3
d) Π/4

Answer: b

Explanation: Nier-Johnson geometry involves a deflection of Π/2 radians in a radial electrostatic field analyser. A magnetic deflection of Π/3 radians follows the analyser.

11. An accuracy of 1 part in 102 has been obtained in precision mass measurements.

a) True
b) False

Answer: b

Explanation: An accuracy of 1 part in 109 has been obtained in precision mass measurements. Spectrographs with photographic reading are used for analysis of solids.

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Instrumentation of Ion Spectroscopy
Realization of Basic Compensators
Electrical Measurements and Instrumentation Objective Questions & Answers
Objective Questions of Building Fire and Gas Detectors
Split-Range, Auto-Selector, Ratio & Cascade Systems
Linear Approximation of the Non-Linear System MCQ
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
208kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Analytical Measurement Multiple Choice Questions
Gas Chromatograph- Mass Spectrometer
DC Circuits Multiple Choice Questions
Temperature and Humidity Objective Questions
Spectrum Analysis of Sampling Process
MCQ on Measurement and Instrumentation
Gas Chromatography Questions & Answers
Spectral Method of Analysis Questions & Answers

Keep Learning

Ion Analyzers Questions and Answers

Special Designs of Ion Selective Electrodes Questions & Answers

Analyzers Questions and Answers

NO2 Analyzer Questions & Answers

Digital Control Systems Multiple Choice Questions

Digital Control Systems Multiple Choice Questions

State Variable Analysis and Design

Concepts of State, State Variables & State Model

Stability in Frequency Domain

Feedback Compensation

State Variable Analysis and Design

Solution of State Equations

Mathematical Models of Physical Systems

Transfer Functions Objective Questions

Level Measurement Objective Questions

Level and Density Measurement Objective Questions

Learn More

Transistor as Switch Working Animation

How a Transistor Switch Works

Auto Cane Feed Control System using DCS

Auto Cane Feed Control System using DCS – Sugar Factory

Encode and Decode Instructions

How to Use Encode and Decode Instructions in PLC ?

4-Wire, Three-Phase Delta Wiring System

4-Wire, Three-Phase Delta Wiring System

Power Electronics Objective Questions

Power Electronics Objective Questions

PLC Star-Delta starter with interlock

Schneider PLC Example Program for Star-Delta System

Capacitor and Symbols

Capacitance

pH Analyzers Questions and Answers

Combination Electrode Questions & Answers

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?