Lead is used for joining pipes made of
A.Cold iron steel
B.Cast iron
C.Concrete
D.Asbestos cement
E.Vitrified clay
Category: Mechanical Engineering Mcqs
Padding is
A.a method for production of chilled castings
B.an extra support for thin castings
C.an extra metal added to the original uniform section of the casting
D.none of the above
Dilute nitric acid applied to a clean fracture of wrought iron gives
A.White stain
B.Greenish stain
C.Blue stain
D.Grey stain
E.Black stain
A hardness value of 1400 BHN can be expected in case of
A.Cementite
B.Ferrite
C.Pearlite
D.All of the above
E.None of the above
The limiting load beyond which the material no longer behaves elastically is known is
A.Breaking load
B.Limiting load
C.Load bearing capacity
D.Plastic limit
E.Elastic limit
Which of the following state has concentration of textile industries?
A.UP
B.Orissa
C.Gujrat
D.Kerala
A 20 HP 1500 r.p.m. induction motor will take current of nearly
A.1 Amp
B.5 Amp
C.10-15 Amp
D.15-20 Amp
E.20-30 Amp
Sometimes refrigeration plants use cooling towers. The water cooled in those towers is supplied
A.For defrosting evaporator coils
B.To cool compressor cylinder only
C.To cool refrigerant in evaporator
D.To cool refrigerant in condenser
E.None of the above
The force acting on a gravity dam which causes stability is
A.Reservoir water pressure
B.Wind pressure
C.Earth and silt pressure
D.Uplift
E.Weight of the dam
The percentage of carbondioxide in atmospheric air is nearly
A.3.2 percent
B.0.32 percent
C.0.032 percent
D.0.0032 percent
