With HSS tools the maximum safe operating temperature is of the order of
A.200?C
B.340?C
C.440?C
D.540?C
E.640?C
Category: Engineeeing Mcqs
For any reversible process, the change in entropy of the system and surroundings is
A.Zero
B.Unity
C.Negative
D.Positive
E.Infinite
Ferrites are a sub-group of
A.Ferromagnetic materials
B.Ferrimagnetic materials
C.Diamagnetic materials
D.Paramagnetic materials
E.None of the above
Which of the following process is used for the commercial production of nitric acid?
A.NaNO3 + H2SO4 process
B.Ammonia oxidationin process
C.Passing air through an electric are
D.None of these answers
In case of reciprocating engines the primary forces
A.Are fully balanced
B.Remain unbalanced
C.Are partially balanced
D.Cannot be balanced
E.None of the above
Recruiting is
A.Judging
B.Finding
C.Hiring
D.Matching
E.All of the above
The binary diffusivity in liquids is of the order of
A.10-5 cm2/sec
B.10-5 m2/sec
C.10-5 mm2/sec
D.10-5 ft2/sec
Discontinuous type chips are generally produced in
A.Mild steel
B.Cast iron
C.Aluminium
D.Alloy steels
E.Duralumin
In case of flight conveyors the angle of flight is seldom allowed to exceed
A.40?
B.60?
C.70?
D.75?
