38.Which type of response will be excited for the shafting system if the frequency of a vibratory
load is equal to a natural frequency of the connected structure or equipment of this shafting
system?
(A)Resonant response
(B)Static response
(C)External response
(D)Transmitting response
36.The volumes above the piston at the extremities of its travel are the clearance volume at top dead center
position, and the cylinder volume at bottom dead center position. The ratio of cylinder volume to clearance volume is the nominal compression ratio. When the clearance volume and cylinder volume are 2 m3 and 8 m3 respectively, the compression ratio is . (A)0.25 (B)16 (C)4 (D)10
26. The main function of the intercooler of a multistage air compressor is what?
(A) to increase the temperature of working fluids
(B) to reduce the pressure of working fluids
(C) to reduce the pumping power input for a given flow rater
(D) to increase the pumping speed for a given flow rater
40. What is the quantity of Mean Effective Pressure for that the work done on the piston is
50000kw, the volumes of cylinder at the bottom-dead-centre and at the top-dead-centre are
respectively 80m3and 30m3
.
(A) 500
(B) 700
(C) 800
(D) 1000