Tiêu đề 23-09-2021 Shift-1 NRL GET Mechanical.pdf ✅

Q.3 T he maximum t emperat ure of fluid inlet in t urbine is 650 °C and heat reject ion t emperat ure in t he at mosphere is 40 °C. Considering t he Indian condit ions, what will be t he maximum efficiency of Carnot cycle? Ans 1. 60% 2. 45% 3. 66% 4. 55% Question Type : MCQ Question ID : 3089201057 Status : Answered Chosen Option : 3 Marks : 1 Q.4 Ans 1. 400 MPa 2. 1000 MPa 3. 250 MPa 4. 100 MPa Question Type : MCQ Question ID : 3089201034 Status : Answered Chosen Option : 1 Marks : 0 Q.5 Ans 1. 2. 3. 4. Question Type : MCQ Question ID : 3089201030 Status : Answered Chosen Option : 2 Marks : 1
Q.6 T he st udy of a body in mot ion due t o ext ernal f orces which cause t he mot ion are considered is known as: Ans 1. Kinetics 2. Statics 3. Kinematics 4. Dynamics Question Type : MCQ Question ID : 3089201001 Status : Answered Chosen Option : 1 Marks : 1 Q.7 To ensure t he st abilit y of a float ing ship, which of t he condit ion must be sat isfied? Ans 1. T he centre of gravity should be above the centre of buoyancy 2. T he centre of gravity should be below the metacentre 3. T he centre of gravity should be above the metacentre and buoyancy 4. T he centre of gravity should be below the centre of buoyancy Question Type : MCQ Question ID : 3089201040 Status : Answered Chosen Option : 2 Marks : 1 Q.8 A closed syst em of const ant volume experience a t emperat ure rise of 20 °C when cert ain process occurs. T he heat t ransf er in t he process is 25 kJ. T he specific heat at const ant volume f or t he pure gas is 2 KJ/kg °C and syst em cont ains 2 kg of t his subst ance. Det ermine t he work done during t his process. Ans 1. –55 kJ 2. –75 kJ 3. 75 kJ 4. 55 kJ Question Type : MCQ Question ID : 3089201058 Status : Answered Chosen Option : 1 Marks : 1 Q.9 Two f orces are act ing at a point wit h a magnit ude and direct ion represent ed by t he t wo adjacent sides of a parallelogram. T heir result ant is represent ed by t he diagonal of t he parallelogram passing t hrough t hat point . T his is based on which law? Ans 1. Law of triangle of forces 2. Law of parallelogram of inertia 3. Law of parallelogram of forces 4. Law of triangle of inertia Question Type : MCQ Question ID : 3089201002 Status : Answered Chosen Option : 3 Marks : 1