All of the following are magnetic materials EXCEPT:
A.Nickel
B.Cobalt
C.Iron
D.Zinc
E.Cast iron
Category: Mechanical Engineering Mcqs
In a multi-cylinder engine, missing in one cylinder is likely to result from
A.Clogged exhaust
B.Vapour lock
C.A defective spark plug
D.An overheated engine
E.None of the above
One kilowatt hour is equal to
A.86,000,000 calories
B.8600,000 calories
C.860,000 calories
D.86,000 calories
E.8600 calories
Which of the following principal wage and salary issues and problems concerns the question of whether the entire pay structure is high, average or low in comparison with the general external labour market?
A.Pay structure
B.Pay level
C.Pay control
D.Payment method
E.Individual pay determination
Which one of the following methods is generally not used in welding of chromium molybdenum steels
A.Oxyacetylene
B.Submerged arc
C.Thermit
D.Resistance
The value of coefficient of friction expected in case of brake lining of steel wheel drum is
A.0.1
B.0.1 to 0.3
C.0.4 to 0.5
D.0.8 to 0.95
E.1
Which is not the cause for loss of heat in boiler due to incomplete combustion?
A.Insufficient air supply
B.Improper secting of boiler
C.Fuel bend in proof condition
D.Under cooling of furnace at low ratings
E.Boiler drum uninsulated
Iniversal coupling is
A.Used for collinear shafts
B.Rigid coupling
C.Type of flange coupling
D.Used for non-collinear shafts
E.None of the above
The wavelength of which of the following is the largest?
A.Radio waves
B.Light waves
C.X-ray waves
D.Gamma ray waves
The advantage of electric braking is
A.it is instantaneous
B.More heat is generated during braking
C.it avoids wear to track
D.motor continues to remain loaded during braking
