Which of the following magnetic material has least value of (B.H.)max?
A.Carbon steel
B.Cobalt steel
C.Alnico
D.Alcomax
Category: Mechanical Measurements Mcqs
An error that under the same conditions will always be of the same size and sign is known as
A.Mistake
B.Accidental error
C.Cumulative error
D.Systematic error
E.Detectable error
A strobotron is
A.A tachogenerator
B.A two winding dc generator
C.A hot cathode gaseous discharge tube
D.A device for temperature measurement
E.None of the above
Flow rate of a river can be determined by
A.Kennison nozzle
B.Kundt’s tube
C.Orifice
D.Weir
E.Venturimeter
If an error under the same conditions will always be of the same size and sign, it is known as
A.Training errors
B.Systematic errors
C.Cumulative error
D.Either of (A) and (B) above
E.Either of (B) and (C) above
Which of the following could be the source of random error in an instrument?
A.Friction in instrument movement
B.Backlash
C.Mechanical vibrations
D.Hysteresis in elastic members
E.Any of the above
Which of the following transducers is preferred for measurements involving sound
A.thermocouple
B.Kundt’s tube
C.peizoelectric pick up
D.None of the above
Under force-current analogy, mass is considered analogous to
A.Current
B.Capacitance
C.Reciprocal of capacitance
D.Reciprocal of resistance
E.Resistance
The reliability of an instrument means
A.The maximum useful life of an instrument
B.The service of an instrument between two repairs
C.The range in which the characteristics of an instrument remain linear
D.The degree to which repeatability continues to remain within specified limits
E.None of the above
Accelerometer is the transducer for
A.Vibration
B.Shock
C.Absolute motion
D.All of the above
E.None of the above
