Which of the following manometer liquids has maximum capillary rise relative to mercury?
A.Water
B.Mercury
C.Carbon tetrachloride
D.Ethly alcohol
Category: Instrumentation and Process Control Mcqs
Which of the following is most suitable to measure a temperature of 2000?C?
A.Ordinary mercury-in-glass thermometer
B.Platinum resistance thermometer
C.Radiation pyrometer
D.Constant-volume hydrogen thermometer.
pH of perfect neutral solution is
A.7
B.5
C.0
D.1
Which one of the following thermocouples develops least e.m.f. for the same difference of temperature between hot and cold junctions?
A.Iron-constantan
B.Copper-constantan
C.Chromel-alumel
D.Platinum-platium + 13% rhodium
Flow rate of sludge is commonly determined by
A.orifice meter
B.venturi meter
C.open weir
D.rotameter
Thermocouple in a well behaves as a true
A.first-order system
B.multiple first-order system
C.underdamped second-order system
D.overdamped second-order system
Which of the following is a first-order instrument?
A.U-tube type mercury manometer
B.Bimetallic thermometer with covering
C.Vapour pressure thermometer without any covering
D.mercury thermometer with covering.
