Category: Compressors, Gas Turbines and Jet Engines

A. to supply base load requirements
B. to supply peak load requirements
C. to enable start thermal power plant
D. in emergency
E. when other sources of power fail

A. isothermal h.p. to the BHP of motor
B. isothermal h.p. to adiabatic h.p.
C. power to drive compressor to isothermal h.p.
D. work to compress air isothermally to work for actual compression
E. isothermal work to ideal work

A. carbonisation of coal
B. passing steam over incandescent coke
C. passing air and a large amount of steam over waste coal at about 65°C
D. partial combustion of caol, eke, anthractie coal or charcoal in a mixed air steam blast
E. same way as the natural gas

A. isothermal
B. isentropic
C. adiabatic
D. isochoric
E. isobaric

A. 6 kg/cm2
B. 10 kg/cm2
C. 16 kg/cm2
D. 25 kg/cm2
E. 40 kg/cm2

A. same
B. higher
C. lower
D. uncomparable
E. unpredictable

A. poppet valve
B. mechanical valve of the corliss, sleeve, rotary or semirotary type
C. disc or feather type
D. any of the above
E. none of the above

A. increases
B. decreases
C. remains unaffected
D. may increase or decrease depending on compressor capacity
E. increases upto certain limit and then decreases

A. Vi=V0B
B. Vt>V0
C. U,<V0
D. V,= U0
E. Vri=Vm

A. turbo-jet
B. turbo-propeller
C. rocket
D. ram-jet ,
E. pulsojet