Inst ToolsInst ToolsInst Tools
  • Courses
  • Videos
  • Q & A
    • Interview
      • Instrumentation
      • Electronics
      • Electrical
      • Practical Questions
    • MCQ
      • Instrumentation MCQ
      • Electrical MCQ
      • Electronics MCQ
      • Control Systems MCQ
      • Analog Electronics MCQ
      • Digital Electronics MCQ
      • Power Electronics MCQ
      • Microprocessor MCQ
      • Multiple Choice Questions
  • EE
    • Electronics
      • Electronics Q & A
      • Electronic Basics
      • Electronic Devices & Circuits
      • Electronics Animation
      • Digital Electronics
    • Electrical
      • Electrical Basics
      • Electrical Q & A
      • Power Electronics
      • Electrical Machines
      • Electrical Animation
      • Power Systems
      • Switchgear & Protection
      • Transmission & Distribution
  • Measure
    • Control Valves
    • Calibration
    • Temperature
    • Pressure
    • Flow
    • Level
    • Analyzers
    • Switches
    • Vibration
    • Solenoid Valve
  • Control
    • PLC Tutorials
    • Control Systems
    • Safety Instrumented System (SIS)
    • Communication
    • Fire & Gas System
  • More
    • Design
    • Tools
    • Animation
    • Basics
    • Formulas
    • Standards
    • TextBooks
    • Common
    • Software
    • Excel Tools
    • Erection & Commissioning
    • Process Fundamentals
    • Videos
    • Books
Search
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Reading: Gas Chromatograph- Mass Spectrometer
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • PLC Tutorials
  • Control Systems
Search
  • Courses
  • Videos
  • Q & A
    • Interview
    • MCQ
  • EE
    • Electronics
    • Electrical
  • Measure
    • Control Valves
    • Calibration
    • Temperature
    • Pressure
    • Flow
    • Level
    • Analyzers
    • Switches
    • Vibration
    • Solenoid Valve
  • Control
    • PLC Tutorials
    • Control Systems
    • Safety Instrumented System (SIS)
    • Communication
    • Fire & Gas System
  • More
    • Design
    • Tools
    • Animation
    • Basics
    • Formulas
    • Standards
    • TextBooks
    • Common
    • Software
    • Excel Tools
    • Erection & Commissioning
    • Process Fundamentals
    • Videos
    • Books
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Multiple Choice Questions > Gas Chromatograph- Mass Spectrometer

Gas Chromatograph- Mass Spectrometer

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

Gas Chromatograph- Mass Spectrometer

1. Which of the following is the most sensitive of the spectral methods?

a) Absorption spectroscopy
b) Mass spectroscopy
c) Flame emission spectroscopy
d) Atomic emission spectroscopy

Answer: b

Explanation: Mass spectroscopy is the most sensitive of the spectral methods. It permits direct introduction of a gas effluent’s stream.

2. Which of the following is the disadvantage of gas chromatography?

a) It is not a good method
b) It cannot be used for qualitative analysis
c) It cannot be used for separation of volatile components
d) It does not provide direct identification

Answer: d

Explanation: Gas chromatography is a very good method for separation of components of a mixture. It does not provide direct identification.

3. Cold tray is provided for liquid N2 or CO2 but is used only for extremely small samples.

a) True
b) False

Answer: a

Explanation: Cold tray is provided for liquid N2 or CO2. It is used only for mass spectral analysis of very small samples.

4. Which of the following is most often used in the chromatograph in gas chromatograph MS?

a) Curvette
b) Paper support
c) Capillary tube
d) Flask

Answer: c

Explanation: Capillary tube is most often used in the chromatograph in gas chromatograph MS. This is because low pressure has to be maintained.

5. GC- MS has been developed for which of the following systems?

a) Packed column
b) Open tubular column
c) Capillary column
d) Porous layer column

Answer: a

Explanation: GC- MS has been developed for packed column system. These allow for analyte molecules to be dynamically extracted from the carrier gas stream.

6. Which of the following problems occur when combining gas chromatography and mass spectroscopy?

a) Difference in operating pressures
b) Reduction in sensitivity
c) Direct identification is not possible
d) It does not permit direct introduction of the effluent

Answer: The problem that occurs when combining gas chromatography and mass spectroscopy is the difference in operating pressures. The pressure at the exit of the GC column is atmospheric.

7. The carrier gas with low molecular weight would diffuse at a higher rate than the higher molecular weight sample.

a) True
b) False

Answer: a

Explanation: The carrier gas with low molecular weight would diffuse at a higher rate than the higher molecular weight sample. The carrier gas would diffuse away from the line of flow.

8. Which of the following is the type of separator used in commercial GC-MS systems?

a) Jet type molecular separator
b) Porous tube
c) Teflon tube
d) Flow type separator

Answer: a

Explanation: Jet type molecular separator is the type of separator used in commercial GC-MS systems. Other methods are porous tube and Teflon tube.

9. The system for measurement of ion intensity in GS-MS system consists of which of the following?

a) Electrometer
b) Ion meter
c) Ion transducer
d) Intensity meter

Answer: a

Explanation: The system for measurement of ion intensity in GS-MS system consists of electrometer. It feeds a direct writing recorder.

10. The system for measurement of ion intensity in GS-MS system consists of which of the following?

a) Band pass amplifier
b) Narrow band amplifier
c) Wide band amplifier
d) Low pass amplifier

Answer: c

Explanation: The system for measurement of ion intensity in GS-MS system consists of a wide band amplifier. It feeds a direct writing recorder.

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 !

Recommended Articles

Construction of Phase -Trajectories
Dissolved Oxygen Analyzer Questions and Answers
Atomic Absorption Spectroscopy Questions & Answers
Instrument Calibration Multiple Choice Questions
Quadrupole Mass Spectrometer
Fundamentals of Radiochemical Methods 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
208kSubscribersSubscribe
38kFollowersFollow

Categories

Recent Comments

  • William Snyder on Top Non-PLC Certification Courses for Automation Professionals
  • Kamli on Top Free PLC Software
  • Guifty Shimica on Top Non-PLC Certification Courses for Automation Professionals
  • Guifty Shimica on Top Non-PLC Certification Courses for Automation Professionals

Related Articles

State Variable Analysis and Design

Controllability & Observability

Stability in Frequency Domain

Mathematical Preliminaries

Pneumatic Control Mechanisms Objective Questions

Pneumatic Control Mechanisms Objective Questions

Analyzers Questions and Answers

Electron Probe Microanalyser Questions & Answers

Encoder Questions

Encoder Multiple Choice Questions

Frequency Response MCQ

All-pass & Minimum-phase Systems

Stability in Frequency Domain

Time Domain Analysis

Optimal Control Systems

The Infinite Time Regulator Problem

More Articles

Siemens Industrial Laptop (Simatic Field PG)

Connect to the Siemens S7 PLC

scada hmi

Functions of SCADA

Parameters of SRT_DINT instruction

Tia Portal – OB20 Time Delay Interrupt Organization Block

Power Electronics Objective Questions

Single-Phase Full Wave AC-DC Converter Objective Questions

Valve Position Indication

Valve Position Indication

Determine Calibration Range of Pneumatic Pressure Transmitter

Determine Calibration Range of Pneumatic Pressure Transmitter

LAYERS OF PROTECTION ANALYSIS

Layers of Protection Analysis (LOPA) Interview Questions

Digital Electronics Objective Questions

Number Systems Multiple Choice Questions

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?