1. A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the…

1. A nozzle is said to be a convergent nozzle A. when the cross-section of the nozzle increases…

1. If V1 is the jet velocity and V0 is the vehicle velocity, then propulsive efficiency of a turbo-jet engine is 2.…

1. The reference fuels for knock rating of spark ignition engines would include A. iso-octane and alpha-methyl naphthalene…

1. The example of snag grinding is A. trimming the surface left by sprues and risers on castings…

1. Segmental chips are formed during machining A. mild steel B. cast iron C. high-speed steel D. high…

1. The centrifugal compressors are generally used for refrigerants that require A. small displacements and low condensing pressures…

1. The wet bulb temperature during sensible heating of the air A. remains constant B. increases C. decreases…

1. A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of…

1. One liter of water occupies a volume of A. 100 cm3 B. 250 cm3 C. 500 cm3 D. 1000 cm3 2.…