The value of mass density in kgsecVm4 for water at 0°C is_________________?
A. 1
B. 1000
C. 100
D. 101.9
E. 91
Month: January 2019
Liquids_________________?
Liquids_________________?
A. cannot be compressed
B. occupy definite volume
C. are not affected by change in pressure and temperature
D. are not viscous
E. none of the above
An ideal flow of any fluid must fulfill the following____________________?
An ideal flow of any fluid must fulfill the following____________________?
A. Newton’s law of motion
B. Newton’s law of viscosity
C. Pascal’ law
D. Continuity equation
E. Boundary layer theory
In a static fluid ___________________?
In a static fluid ___________________?
A. resistance to shear stress is small
B. fluid pressure is zero
C. linear deformation is small
D. only normal stresses can exist
E. viscosity is nil
Bell metal contains_____________________?
Bell metal contains_____________________?
A. 70% copper and 30% zinc
B. 90% copper and 10% tin
C. 85-92% copper and rest tin with little lead and nickel
D. 70-75% copper and rest tin
E. 70-75% copper and rest zinc and tin
The correct sequence for descending order of machinability is _____________________?
The correct sequence for descending order of machinability is _____________________?
A. grey cast iron, low carbon steel, wrought iron
B. low carbon steel, grey cast iron, wrought iron
C. wrought iron,low carbon steel, grey cast iron
D. wrought iron, grey cast iron, low carbon steel
E. grey cast iron, wrought iron, low carbon steel
Aluminium bronze contains aluminium and copper in the ratio of___________________?
Aluminium bronze contains aluminium and copper in the ratio of___________________?
A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 10 : 90
E. 90 : 10
Muntz metal contains copper and zinc in the ratio of________________?
Muntz metal contains copper and zinc in the ratio of________________?
A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 20 : 80
E. 80 : 20
Perminvar alloy having constant permeability is an alloy of________________?
Perminvar alloy having constant permeability is an alloy of________________?
A. nickel, copper and iron
B. nickel, copper and zinc
C. copper, nickel and antimony
D. iron, zinc and bismuth
E. antimony, copper and zinc
Monel metal contains_________________?
Monel metal contains_________________?
A. 63 to 67% nickel and 30% copper
B. 88% copper and 10% tin and rest zinc
C. alloy of tin, lead and cadmium
D. malleable iron and zinc
E. none of the above