Permissible velocity of water flowing through concrete tunnel is usually
A.4 – 5 m/s
B.10 – 12 m/s
C.12 – 12 m/s
D.20 m/s
E.25 m/s
Category: Mechanical Engineering Mcqs
A Babitt is
A.A cutectic of iron and iron phosphide
B.A gadget for measuring volume
C.Antimony bearing lead or tin alloy
D.A measure of magnetic induction produced in a material
E.None of these
Which of the following gives nearly monochromatic light?
A.Sodium vapour lamp
B.GLS lamp
C.Fluurescent tube
D.Mercury vapour lamp
E.None of the above
If a gymnast sitting on a rotating stool, with his arms outstretched suddenly lowers his arm
A.the angular velocity will decrease
B.his moment of inertia will decrease
C.the angular velocity will remain constant
D.the angular momentum will increase
Constantan is an alloy containing
A.Copper and zinc
B.Copper and nickel
C.Lead and zinc
D.Zinc and nickel
E.Lead and copper
Point angle of drill is usually more while drilling
A.Mild steel
B.Marble
C.Slate
D.Soft cast iron
E.Hard alloys
Pico x tera
A.1
B.1000
C.100,000
D.1,000,000,000
Pascal’s law states that pressure at a point is equal in all directions
A.In a liquid at rest
B.In a fluid at rest
C.In a laminar flow
D.In a turbulent flow
Diesel engine fuels are rated by
A.Octane number
B.HUCR
C.Cetane number
D.CFR number
E.Calorific value
A circulating water pump of a condenser is of the centrifugal type and directly connected to a three phase induction motor running at 900 rpm. The pump delivers 30,000 litres per minute against the dynamic head of 10 m. The horse power of the motor required to drive the pump would be
A.20-30 HP
B.30-40 HP
C.40-50 HP
D.50-60 HP
E.60-70 HP
