A. steel
B. cast iron
C. copper
D. aluminium
Related Mcqs:
- The isentropic expansion of steam through nozzle for the steam initially superheated at inlet is approximated by equation__________?
A. pvls=C
B. pv1126 = C
C. pv1A = C
D. pv = C - The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is___________?
A. 0.6
B. 0.578
C. 0.555
D. 0.5457 - The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is__________?
A. 0.555
B. 0.578
C. 0.5457
D. 0.6 - The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation?
A. pv = C
B. pv1A = C
C. pv1i = C
D. pv - Steam turbines commonly used in steam power station are__________?
A. condensing type
B. non-condensing type
C. none of the above - Steam pressure in a steam power station, which is usually kept now-a-days is of the order of____________?
A. 20 kgf/cm2
B. 50 kgf/cm2
C. 100 kgf/cm2
D. 150 kgf/cm2 - Load carrying capacity of belt conveyor is about___________?
A. 20 to 40 tonnes/hr
B. 50 to 100 tonnes/hr
C. 100 to 150 tonnes/hr
D. 150 to 200 tonnes/hr - Mercury is a choice with steam in binary vapour cycle because it has____________?
A. higher critical temperature and pressure
B. higher saturation temperature than other fluids
C. relatively low vapourisation pressure
D. all above - In case of impulse steam turbine_____________?
A. there is enthalpy drop in fixed and moving blades
B. there is enthalpy drop only in moving blades
C. there is enthalpy drop in nozzles
D. none of the above - Reheat factor is the ratio of_____________?
A. isentropic heat drop to useful heat drop
B. adiabatic heat drop to isentropic heat drop
C. cumulative actual enthalpy drop for the stages to total is isentropic enthalpy heat drop
