__________ are used to measure very low pressures and sometimes vacuums on air conditioning, heating and refrigeration systems.
A. Anometers
B. Manometers
C. Thermometers
D. Volt-ohm milliammeters
Answer: B
Trades & Technology
You might also like to view...
Air tanks should be drained
Air brake
Trades & Technology
The meter category rating that provides the greatest degree of protection is the _____.
a. CAT I meter b. CAT II meter c. CAT III meter d. CAT IV meter
Trades & Technology
____________________ control the water used in the flushing process
Fill in the blank(s) with the appropriate word(s).
Trades & Technology
To couple two circuits together with no change in either voltage or current, use ________
A) a step-up transformer B) a power transformer C) an isolation transformer D) a step-down transformer
Trades & Technology