The degree of perfection used in instruments, the methods and the observations, is known as ________________?
A.Precision
B.Accuracy
C.Efficiency
D.Least count
E.Error
A.Creep
B.Bauschinger effect
C.Relaxation
D.Resilience
E.Hysteresis
A.decreasing the depth of beam
B.increasing the span
C.providing greater end restrains
D.any of the above methods
Continue reading “The deflection of a beam may be reduced by ____________?”
A.Priming faulty
B.Suction head too high
C.Air in water
D.Discharge head too high
E.Mechanical defect
Continue reading “If a centrifugal pump is noisy in operation, the cause may be________________?”
A.The engine operatres at low speeds
B.The engine operates at high speeds
C.The engine operates at variable speeds
D.One speed is desired to be kept for all loads
E.One speed is desired under one load
Continue reading “Isochronism in a governor is desirable when_____________?”
A. Compounds of silver
B. Liquid metals
C. Metallic alloys
D. Electrolytes
A. 10-8 mm
B. 10″6 cm
C. 10″10 m
D. 10~14 m
A. positive temperature coefficient
B. negative temperature coefficient
C. zero temperature coefficient
D. variable temperature coefficient
A. resistance: ohm
B. capacitance: henry
C. inductance: farad
D. lumen: steradian
A. 1 n-mho
B. 106 mho
C. 1 milli-mho
D. none of the above