附件24.5 Course Name Hvdraulic and Pneumatic Transmission Exam Date Name Student No Major Title No Signature Title Score ore Attentions::l、 Please check if the papers have five pages and whether it has missed page 2.Candidates for exam could not bring the paper,answer sheet and the draft paper out the examination hall after the examination. 1.Multiple Choice (1)Flow continuity equation is the expression-form of(C)in hydrodynamics and Bernoulli equation is the expression-form of(A)in hydrodynamics. A.Conservation law of energy B.Momentum theorem C.Law of conservation of mass D.Newton third law (2)Flow rate of liquid which moving through the orifice rise proportionately to the(A)of the area of orifice and(B)of pressure difference A.First power B.Square root C.Square D.Cube (3)(B)can withstand the negative load and (C)with the worst speed rigidity in the throttle speed-regulating circuit. A.Inlet throttle speed-regulating circuit B.Outlet throttle speed-regulating circuit C.Bypass throttle orifice speed-regulating circuit D.Volume speed-regulating circuit (4)The flow rate of the pump which bears zero load is often regarded as (B). A.practical flow-rate B.Theoretical flow-rate附件 24.5 Course Name Hydraulic and Pneumatic Transmission Exam Date Name Student No Major Title No 1 2 3 4 5 6 7 8 Title Score Signature Score Attentions:1、 Please check if the papers have five pages and whether it has missed page 2、Candidates for exam could not bring the paper, answer sheet and the draft paper out the examination hall after the examination. 1. Multiple Choice (1) Flow continuity equation is the expression-form of ( C ) in hydrodynamics and Bernoulli equation is the expression-form of ( A ) in hydrodynamics. A. Conservation law of energy B. Momentum theorem C. Law of conservation of mass D. Newton third law (2) Flow rate of liquid which moving through the orifice rise proportionately to the ( A ) of the area of orifice and ( B ) of pressure difference. A. First power B. Square root C. Square D. Cube (3) ( B ) can withstand the negative load and ( C ) with the worst speed rigidity in the throttle speed-regulating circuit. A. Inlet throttle speed-regulating circuit B. Outlet throttle speed-regulating circuit C. Bypass throttle orifice speed-regulating circuit D. Volume speed-regulating circuit (4) The flow rate of the pump which bears zero load is often regarded as （B）. A. practical flow-rate B. Theoretical flow-rate 1