Emission spectroscopy is used for – McqOptions

MCQOPTIONS

1.	Emission spectroscopy is used for
A.	solids and metal analysis.
B.	determining water purity.
C.	determination of CO2 in gases.
D.	NOxdetermination.
Answer» B. determining water purity.

Discussion

No Comment Found

Related MCQs

A proportional controller with a gain of is used to control a first order process. The offset will increase, if
The second order system with the transfer function has a damping ratio of
The transfer function for a PID controller is (where, τ is the integral (reset) time and τ is the derivative time.)
For an input forcing function, () = 2, the Laplace transform of this function is
The characteristic equation for the control system with a closed loop transfer function /1 + is given by 1 + = 0. The characteristic equation for the control system
The offset introduced by proportional controller with gain in response of first order system can be reduced by
Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.
The open loop transfer function of a process is . In the root locus diagram, the poles will be at
The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is
Which of following error integral is considered as the best criterion in controller settings ?