Description : Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism. (A) Fracture (B) Dislocation (C) Slip (D) Twinning
Last Answer : (C) Slip
Description : __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. (A) Solid solution hardening (B) Screw dislocation (C) Strain ageing (D) Twinning
Last Answer : (C) Strain ageing
Description : Dislocation cross-slip is difficult in those materials, which have (A) Large number of slip systems (B) High work hardening rate (C) Coarse grain size (D) Low stacking fault energy
Last Answer : (D) Low stacking fault energy
Description : The permanent mode of deformation of a material known as _____________ a) Elasticity b) Plasticity c) Slip deformation d) Twinning deformation
Last Answer : b) Plasticity
Description : Strain hardening effect in metals subjected to cold working is due to the __________ mechanism. (A) Slip (B) Fracture (C) Winning (D) Dislocation
Last Answer : (D) Dislocation
Description : In order to avoid hip dislocation after replacement surgery, the nurse teaches the patient which of the following guidelines? a) Never cross the affected leg when seated. Crossing the affected leg may result ... a chair. The patient should be taught to avoid bending forward when seated in a chair.
Last Answer : a) Never cross the affected leg when seated. Crossing the affected leg may result in dislocation of the hip joint after total hip replacement.
Description : A rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena is responsible for this? 1. Diffusion 2. Refraction 3. Internal reflection (a) 1, 2 and 3 (b) 1 and 2 (c) 2 and 3 (d) 1 and 3
Last Answer : Ans:(c)
Description : Pick out the wrong statement. (A) Tin can be readily and very easily drawn into very fine wire (B) Tin can be severely cold worked without the necessity of annealing due to its low recrystallisation temperature (C) Tin exists in two allotropic forms
Last Answer : (A) Tin can be readily and very easily drawn into very fine wire
Description : The temperature at which new grains are formed in the metal is called the __________ temperature. (A) Eutectic (B) Recrystallisation (C) Upper critical (D) Lower critical
Last Answer : (B) Recrystallisation
Description : Pick out the wrong statement. (A) The toughness of a material decreases, when it is heated (B) Crane hooks are normally made of wrought iron (C) Cold working of a metal decreases its ... (D) The temperature at which new grains are formed in a metal is known as the recrystallisation temperature
Last Answer : (C) Cold working of a metal decreases its fatigue strength
Description : Which of the following terminology is used for the temperature at which new grains are formed in a metal? (A) Eutectic temperature (B) Lower critical temperature (C) Recrystallisation temperature (D) Upper critical temperature
Last Answer : Recrystallisation temperature
Description : While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________ × Tm (where, Tm Melting temperature). (A) 0.25 (B) 0.45 (C) 0.70 (D) 0.95
Last Answer : (C) 0.70
Description : Pick out the wrong statement. (A) Lead can creep under its own weight at room temperature (B) The electrical conductivity of gold is considerably reduced by alloying additions due to ... metal (D) With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase
Last Answer : (C) Recrystallisation temperature decreases with decrease in strain in a cold worked metal
Description : Recrystallisation temperature of steel is __________ °C. (A) 50 (B) 300 (C) 500 (D) 800
Last Answer : (D) 800
Description : Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when (A) Strain rate is increased (B) Grain size is increased (C) Prior cold deformation is increased (D) Not affected by any of the above parameters
Last Answer : (A) Strain rate is increased
Description : Which of the following resistances is not involved in a gas phase catalytic (gas-solid) reaction? (A) Ash resistance (B) Gas film and pore surface diffusion resistances for reactants (C) Surface phenomenon resistance (D) Gas film and pore surface diffusion resistances for products
Last Answer : (A) Ash resistance
Description : Scoring is a ________ phenomenon. (a) stick-slip (b) fracture (c) fatigue (d) in-out
Last Answer : (a) stick-slip
Description : Scoring is a ________ phenomenon. a) Stick-slip b) Fracture c) Fatigue d) In-out
Last Answer : a) Stick-slip
Description : The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid). (A) √T (B) T (C) T 2 (D) T
Last Answer : (C) T
Description : When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value. (A) Twice (B) Half (C) Equal (D) None of these
Last Answer : (B) Half
Description : The hardenability of steel decreases with (A) Decrease in dislocation density (B) Increase in solutionising temperature (C) Increase in strength (D) Decrease in grain size
Last Answer : D) Decrease in grain size
Description : Between 230 and 370°C, blue brittleness is caused in mild steel because of the (A) Immobility of dislocation (B) Strain-ageing (C) Increase in Young's modulus (D) Strain hardening
Last Answer : Option B
Description : With increase in annealing temperature, the following defect density decreases. (A) Vacancy (B) Dislocation (C) Grain boundary (D) All of these
Last Answer : Option D
Description : 9. The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is (A) More (B) Equal (C) Less (D) Double
Last Answer : Option A
Description : The phenomenon of osmosis is opposite to that of (A) Diffusion (B) Effusion (C) Affusion (D) Coagulation
Last Answer : A
Description : The absorption of ink by blotting paper involves: A. Viscosity of ink B. Capillary action phenomenon C. Diffusion of ink through the blotting D. Siphon action
Last Answer : ANSWER: B
Description : The absorption of ink by blotting paper involves (a) Viscosity of ink (b) Capillary action phenomenon (c) Diffusion of ink through the blotting (d) Siphon action
Last Answer : Ans:(b)
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (a) diffusion (b) absorption (c) osmosis (d) electrophoresis
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (1) Diffusion (2) Absorption (3) Osmosis (4) Electrophoresis
Last Answer : (3) Osmosis Explanation: Dialysis is the artificial process of getting rid of waste (diffusion) and unwanted water (ultrafiltration) from the blood. This process is naturally done by our kidneys. It ... it results in osmotic pressure which causes the fluid to move from the blood into the dialysate.
Description : Oil rises up the wick in a lamp because (1) Oil is very light (2) Of the diffusion of oil through the wick (3) Of the surface tension phenomenon (4) Of the capillary action phenomenon
Last Answer : (4) Of the capillary action phenomenon Explanation: It is because of the capillary action phenomenon because of which oil rise up the wick in a lamp. Capillary action, or capillarity, is the ability ... such as paper, in some nonporous materials such as liquefied carbon fiber, or in a cell.
Description : The absorption of ink by blotting paper involves - (1) capillary action phenomenon (2) viscosity of ink (3) siphon action (4) diffusion of ink through the blotting
Last Answer : (1) capillary action phenomenon Explanation: The ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
Description : When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of – (1) evaporation (2) vaporisation (3) diffusion (4) sublimation
Last Answer : (3) diffusion Explanation: Diffusion is one of several transport phenomena that occur in nature. A distinguishing feature of diffusion is that it results in mixing or mass transport without requiring ... are other transport mechanisms that use bulk motion to move particles from One place to another.
Description : The absorption of ink by blotting paper involves-----? A. Viscosity of ink B. Capillary action phenomenon (Answer) C. Diffusion of ink through the blotting D. Siphon action
Last Answer : B. Capillary action phenomenon (Answer)
Description : A bottle filled with previously moistened mustard seeds and water was screw capped tightly and kept in a corner. It blew up suddenly after about half an hour. The phenomenon involved is (a) diffusion (b) imbibition (c) osmosis (d) DPD.
Last Answer : b) imbibition
Last Answer : (A) Diffusion
Description : In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is (1) Diffusion(2) Absorption (3) Osmosis (4) Electrophoresis
Last Answer : Osmosis
Last Answer : Of the capillary action phenomenon
Description : When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : (1) evaporation (2) vaporisation (3) diffusion (4) sublimation
Last Answer : diffusion
Description : A three phase slip ring induction motor with chopper controlled resistance has its torque proportional to (a) Rotor current (b) Stator resistance (c) Square of rotor current (d) Square root of rotor current
Last Answer : A three phase slip ring induction motor with chopper controlled resistance has its torque proportional to Square of rotor current
Description : What can climb mountains, cross streams, handle hundreds of feet each day, yet never moves? What is it? -Riddles
Last Answer : A trail!
Description : Repeated Ankle dislocation for 1 month with no Fracture, what to do?
Last Answer : answer:If the joint is dislocating it is also damaging, stretching the tendons, ligaments, hence the repetitive nature of the injury. I had to have a pin pput in my shoulder for the same reason, ... your dancing, excercising. etc right now. I'd get to an orthopedist and have the situation assessed.
Description : What is the best hip orthosis for conservative treatment for hip dislocation, fractures?
Last Answer : medi hip one from the house of PMIPL, offers an ideal hip therapy orthosis for treatment of hip dislocation, acetabular fracture or any othe rpost-operative conditions of hip joint.. The orthosis guards against dislocation & luxation of the hip
Description : Dislocation?
Last Answer : DefinitionA dislocation is a separation of two bones where they meet at a joint. (Joints are areas where two bones come together.) A dislocated bone is no longer in its normal position, which may ... to the surrounding ligaments generally take 3 - 6 weeks to heal. Sometimes, surgery to repair a
Description : Shoulder joint dislocation?
Last Answer : A shoulder dislocation usually occurs as a result of force to a joint. The bone is pushed out of the socket, which may cause damage to the surrounding ligaments, tendons, and nerves.Reviewed ByReview Date: 08/ ... Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
Description : Heart murmur indicates a - (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles
Last Answer : (1) defective valve Explanation: Murmurs are pathologic heart sounds that are produced as a result of turbulent blood flow that is sufficient to produce audible noise. A functional murmur or " ... through which blood flows in or near the heart. Such murmurs are known as pathologic murmurs.
Description : Lens induced glaucoma is least likely to occur in: a. Intumescent cataract. b. Anterior lens dislocation, c. Posterior subcapsular cataract d. Posterior lens dislocation
Last Answer : ANSWER: C
Description : Every communicator has to experience (A) Manipulated emotions (B) Anticipatory excitement (C) The issue of homophiles (D) Status dislocation
Last Answer : (B) Anticipatory excitement
Description : Heart murmur indicates a (1) defective valve (2) poor oxygenation (3) dislocation of the heart (4) improper development of muscles
Last Answer : defective valve
Description : The wrong statement in relation to experimental method is Options: A) Observation under controlled condition is experiment B) It is method of effective control of variables C) Careful observation of a phenomenon under controlled conditions D) It is an useful method in laboratories
Last Answer : D) It is an useful method in laboratories