Testing Equipment Flashcards
Digital manometers shall be calibrated at least _____ per year
once
Manometers range from +-1% to +-0.05% for full scale accuracy. True or False?
True
Digital pressure gauges are more reliable than manual type due to fewer moving parts. True or False?
True
Digital pressure gauges are ideal for which type of measurements?
very small
Two types of digital gauges?
Strain gauge
Piezoelectric
How are digital gauges powered up? (3 ways)
- Battery
- 4-20ma loop
- solar
Where is a common spot to measure pressure differential using a manometer on a DFMA?
across the profile plate
Name three types of manometers?
U tube
incline
digital
Level of CO must not exceed 0.04% on an air-free basis. True or False?
True
A combustion analysis shall be performed whenever a conversion burner is installed, inspected, or has its settings modified. True or False?
True
Vertical and horizontal tube manometers do not require calibration. True or False?
True
How does a U tube manometer operate?
Liquid inside the U is forced up or down depending on pressures, the amount pushed up or down is measured and that is the differential
The inclined manometer is
frequently called a ________ because it is widely used for determining the over-fired
draft in boiler uptakes and flues.
Draft Gage
Manometer fluid must have good _______ characteristics
wetting
Manometer measurements are taken at the top or bottom of the meniscus? (U)
bottom
