The rate constant for a first-order reaction
A.depends on the unit of time
B.has units of reciprocal time
C.does not change on changing the concentration units
D.all of the above
Category: Engineeeing Mcqs
Fluid continuum is a concept in which
A.the actual molecular structure is replaced by a hypothetical continuous medium
B.fluid particles are widely scattered in space
C.fluid is non-homogeneous
D.fluid density is very low
Bush bearings
A.Phosphor bronze
B.Aluminium bronze
C.Mild steel
D.White metal alloys
E.None of the above
A system is called open system if
A.only the energy crosses the system boundary
B.both energy and mass cross the system boundary
C.neither energy nor mass crosses the system boundary
D.only the mass crosses the system boundary
Which of the following is not the effective good material handling?
A.Increased labour cost
B.Reduced cost of production
C.Decrease in non-production
D.Lower handling costs
E.All of the above
Engine pistons are generally made of aluminium alloy because
A.It is lighter
B.It is stronger
C.It has less wear
D.It absorbs shocks
E.It does not react with fuel as well as lubricating oil
Gamma iron has
A.Body centred space lattice structure containing 6 atoms
B.Body centred space lattice structure containing 10 atoms
C.Face centred space lattice structure with 8 atoms
D.Face centred space lattice structure with 14 atoms
E.None of the above
In case of Scotch Yoke Mechanism the Coriolis component is
A.Involved
B.Not involved
C.Sometimes involved
D.Involved if some other conditions are satisfied
E.Involved but generally neglected
An instrument which is used for measuring temperature variations by change in a metallic resistance is called a
A.Thermopile
B.Bolometer
C.Thennocouple
D.thermo-generator
E.Thermo-galvanometer
The maximum permissible turbidity for drinking water
A.Zero
B.1 – 4 ppm
C.15 – 25 ppm
D.3 – 50 ppm
E.30 – 50 ppm
