Mercury vapour black lights may be extinguished if the supply voltage – McqOptions

MCQOPTIONS

1.	Mercury vapour black lights may be extinguished if the supply voltage drops below about:
A.	120 volts
B.	90 volts
C.	220 volts
D.	200 volts
Answer» E.

Discussion

No Comment Found

Related MCQs

A term used to describe the range of radiation intensities falling on the film during exposure is:
The term used to describe the reaction of human reproductive cells, to ionizing radiation is:
The term used to describe the reaction of human cells, other than reproductive cells, to ionizing radiation is:
The amount of radioactivity which corresponds to 3.7 1010 disintegrations per second is called:
A method of compensating for the dead zone or near surface resolution problems is to:
When a small diameter tube is placed in a glass of water, water rises in the tube to a level above the adjacent surface. This is called:
A penetrant process in which excess penetrant is removed with an organic solvent is called:
A penetrant process which employs an emulsifier as a separate step in the penetrant removal process is called:
Which of the following statements accurately describes the capabilities of liquid penetrant testing?
How is the size of a liquid penetrant indication usually related to the discontinuity it represents: