Mechanical Engineering MCQs

A. Is self-operating at zero flight speed
B. Is not self-operating at zero^flight speed
C. Requires no air for its operation
D. Produces a jet consisting of plasma

A. 3.5 : 1
B. 5 : 1
C. 8 : 1
D. 12 : 1

A. In two phases
B. In three phases
C. In a single phase
D. In the form of air and water mixture

A. Vi=v0b
B. Vt>v0
C. U,<v0
D. V,= u0

A. Atmosphere
B. Back to the compressor
C. Discharge nozzle
D. Vacuum

A. Both forward and return strokes
B. Forward stroke
C. Return stroke
D. None of these

A. Progressive die
B. Simple die
C. Compound die
D. Combination die

A. More volume of acetylene and less volume of oxygen
B. Equal volumes of oxygen and acetylene
C. More volume of oxygen and less volume of acetylene
D. None of the above

A. Below the recrystallisation temperature
B. At the recrystallisation temperature
C. At any temperature
D. Above the recrystallisation temperature

A. Cutting a sheet of metal through part of its length and then bending the cut portion
B. Removal of metal to the desired shape from the edge of a plate
C. Cutting a sheet of metal in a straight line along the length
D. Bending a sheet of metal along a curved axis