A. Processing of thermosetting plastics is ideally done by injection moulding
B. Processing of thermoplastics is ideally done by compression moulding
C. Mass production of seamless pipes are done by electrical resistance welding (ERW)
D. Stretch forming is a process of cold drawing
Chemical Engineering Basics
Chemical Engineering Basics
A. Jet engine can work, where there is no atmosphere
B. Rocket engines cannot work, where there is no atmosphere
C. Rocket engines carry oxygen required for the combustion in the form of oxidiser
D. Jet engines also carry oxidiser
A. The X-rays cannot be deflected by electric field unlike cathode rays
B. The intensity of X-rays can be measured by ionisation current produced due to the ionisation
of gas by X-rays
C. The quality of X-rays can be controlled by varying the anode-cathode voltage
D. Crystal structure of a material can be studied by an electron microscope
A. Geothermal energy is a non-conventional source of energy
B. Mass is converted into energy in both nuclear fission & fusion reaction
C. Inhalation of mercury vapour is not harmful for human beings
D. Inhalation of arsenic causes cancer
A. Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly
caused by the formation and coalescence of voids in the necked region
B. Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation
C. Fatigue fracture of a material is always brittle in nature and takes place due to the existence of
line imperfections
D. Brittle materials are generally tested in tension
A. The equivalent stiffness of two springs (of equal stiffness ‘S’) in series is S/2 while in parallel
is 2S
B. For a helical spring, deflection is proportional to D3 (D = mean coil diameter) or d4 (d = wire
diameter)
C. Crushing load or columns is less than the buckling load
D. Modulus of resilience is proportional to (stress at elastic limit)2
A. Malleable
B. Ductile
C. Brittle
D. Tough
A. Lower cost
B. Abundant availability
C. Resistance to vegetable acids as the tin plate are commercially used in ‘canning’ industry
D. None of these
A. Parallel flow with equal heat capacities
B. Counter flow with equal heat capacities
C. Counter flow with unequal heat capacities
D. Parallel flow with unequal heat capacities
A. 15
B. 25
C. 10
D. 30
