- (A) iron
- (B) copper
- (C) aluminium
- (D) zinc
- (E) nickel
Mechanical Engineering Mcqs
- (A) improvement of casting characteristics
- (B) improvement of corrosion resistance
- (C) one of the best known age and precipitation-hardening systems
- (D) improving machinability
- (E) none of the above
- (A) copper and tin
- (B) copper and zinc
- (C) copper and iron
- (D) copper and nickel
- (E) copper and chromium
- (A) 1000 N/m3
- (B) 10000 N/m3
- (C) 9.81 xlO3 N/m3
- (D) 9.81 xlO6N/m3
- (E) 9.81 N/m3
- (A) adhesion
- (B) cohesion
- (C) surface tension
- (D) viscosity
- (E) compressibility
- (A) 1
- (B) 1000
- (C) 100
- (D) 101.9
- (E) 91
- (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
- (A) Newton’s law of motion
- (B) Newton’s law of viscosity
- (C) Pascal’ law
- (D) Continuity equation
- (E) Boundary layer theory
- (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
- (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
