If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is ().
A combination combustible gas and oxygen indicator is an instrument that measures the() of both combustible gas and oxygen; each is indicated on a separate meter.
After each reading of an oxygen indicator,the instrument should be purged with().
A salinity indicator is used to determine the ().
Which of the following can be directly obtained by means of an indicator card?()
An oxygen indicator can be used to determine if there is().
rudder angle indicator()
GM cannot be used as an indicator of stability at all angles of inclination because().
An indicator on the main switchboard should show () the emergency battery is in service or not.
A combustible gas indicator is used to determine ().