In a four stroke SI engine the inlet valve opens
A.at TDC and closes at BDC
B.10? before TDC and closes 10? after BDC
C.10? before TDC and closes 10? after BDC
D.10? before TDC and closes 50? after BDC
Category: Engineeeing Mcqs
The incentive plan which awards bonus to worker on the basis of time save in addition to certain base rate is
A.Halsey plan
B.Rowan plan
C.Emerson plan
D.none of the above
Peclet number (NPe) for mass transfer is defined as
A.NRe/NSc
B.NReNSc
C.NSc/NRe
D.NShNSc
Volume of air required to melt one ton of cast iron in a cupola at N.T.P. is roughly
A.10 cubic metres of air
B.100 cubic metres of air
C.1000 cubic metres of air
D.10000 cubic metres of air
E.100000 cubic metres of air
LPG mainly consists of
A.Methane and ethane
B.Propane and butane
C.Petrol and diesel
D.Hexane and butadiene
Clear ice
A.Is pure ice
B.Contains dissolved air
C.Contains dissolved gases
D.Is produced by blowing air during freezing
E.None of the above
A particle in SHM while passing through mean position will have
A.maximum kinetic energy and maximum potential energy
B.maximum kinetic energy and minimum potential energy
C.minimum kinetic energy and maximum potential energy
D.average kinetic energy and average potential energy.
A bench vice is provided with
A.Vee threads
B.BSW threads
C.Buttress threads
D.Acme threads
E.None of the above
