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
  • Request
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: Electron Probe Microanalyser Questions & Answers
Share
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
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Multiple Choice Questions > Electron Probe Microanalyser Questions & Answers

Electron Probe Microanalyser Questions & Answers

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

Electron Probe Microanalyser Questions & Answers

1. Which of the following is not a type of optics employed in electron probe microanalyser?

a) Electron optics
b) Light optics
c) X-ray optics
d) Gamma optics

Answer: d

Explanation: Gamma optics is not a type of optics used in electron probe microanalyser. Electron optics, light optics and X-ray optics are employed.

2. The electron optics consists of an electron gun followed by which of the following components?

a) Collimator
b) Slit
c) Amplifier
d) Electron beam probe

Answer: d

Explanation: The electron optics consists of an electron gun followed by electron beam probe. This is formed by two electro-magnetic lenses.

3. The specimen is mounted inside which of the following components?

a) Test tube
b) Glass capillary tube
c) Vacuum column
d) Curvette

Answer: c

Explanation: The specimen is mounted inside the vacuum column in the instrument. It is under the beam as the target.

4. The electrons are accelerated by voltages in which of the following ranges?

a) 5 and 50kV
b) 50 and 500kV
c) 500 and 5000kV
d) 25 and 250kV

Answer: a

Explanation: The whole system operates in a vacuum. The electrons are accelerated by voltages in the range of 5 and 50kV.

5. Electron probe microanalyser is a method of destructive elemental analysis.

a) True
b) False

Answer: a

Explanation: Electron probe microanalyser uses a finely focussed electron beam to excite the X-rays. It is a method of destructive elemental analysis.

6. Which of the following is the effective resolution limit in electron probe microanalyser?

a) 1mm
b) 10mm
c) 100mm
d) 1000mm

Answer: a

Explanation: The electrons spread laterally and longitudinally in the sample by approximately 1mm. Hence, the effective resolution limit is 1mm.

7. Micro probe analyser cannot be used on inhomogeneous material.

a) True
b) False

Answer: b

Explanation: Micro probe analyser can be used on inhomogeneous material. It can also be focussed on a very small area.

8. X-ray emission must be analysed against a background of _______ radiation.

a) Blue
b) Yellow
c) White
d) Green

Answer: c

Explanation: X-ray emission must be analysed against a background of white radiation. Microprobe has poorer sensitivity than XRF spectrometer.

9. Which of the following is the limit of detectability of electron microprobe analyser?

a) 10-14 g
b) 10-140 g
c) 10-7 g
d) 10-70 g

Answer: a

Explanation: Electron microprobe analyser allows the analysis of extremely small objects. The limit of detectability is 10-14 g.

10. The alternative method using laser does not analyse vapours by which of the following methods?

a) Mass spectrometer
b) Optical emission
c) Absorption photometry
d) X-ray photometry

Answer: d

Explanation: The alternative method using laser does not analyse vapours by X-ray photometry. This method is gaining popularity.

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

Magnetic Wind Instruments Questions & Answers
UV Visible Spectrometers Questions and Answers
Time Response of Second Order Systems – IV
Experimentation of Transfer Function
State Variable Analysis – Part I
Hydraulic Systems Objective Questions
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
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Silica Analyzer Questions & Answers
Pulse Height Analyzer Questions & Answers
Liapunov’s Stability Criterion – Part II
Biosensors Questions & Answers
Robotic Control System – Part II
Optimal Control Problems – Part 2
Total Reflection Spectrometer Questions & Answers
Signal Flow Graphs Objective Questions

Keep Learning

Mass Spectrometer Questions and Answers

Mass Spectrometer Questions & Answers

Nuclear Magnetic Resonance Spectrometer Questions and Answers

Nuclear Magnetic Resonance Spectrometer Questions & Answers

Ion Spectrometers Questions & Answers

Ion Spectroscopy Questions & Answers

Pollution Monitoring Instruments Questions and Answers

Sulphur Di-oxide Monitoring Questions & Answers

PN Junction Questions & Answers

Measurement and Instrumentation Objective Questions – Part 5

Programmable Logic Controllers Multiple Choice Questions

Programmable Logic Controllers Multiple Choice Questions

Liapunov’s Stability Analysis

Liapunov’s Stability Criterion – Part I

Time Response Analysis

Time Response of Second Order Systems – II

Learn More

MTech Project Ideas for Electronics and Electrical Engineering

100 MTech Project Ideas for Electronics and Electrical Engineering

Floating Neutral - Electrical Engineering Basics

What is Floating Neutral? – Electrical Engineering Basics

Pressure Temperature Compensation Flow Measurement

Pressure Temperature Compensation Flow Measurement

Remote Seal Pressure Transmitter

How much Pressure will Remote Seal Pressure Transmitter Indicate?

Electrical Machines Questions and Answers

Induction Motor Rotor Frequency

DeviceNet

What is DeviceNet?

Real-time PLC Projects

Real-time PLC Projects – Industrial Automation

Industrial Oven Control Application with PLC Controller

Industrial Oven Control Application with PLC Controller

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

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?