ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams


The valves mounted on the boilers which change the direction of flow of steam by 90° and valves fitted in the pipelines which allow the steam in the same direction are respectively called as _____.
1) Stop valves and junction valves 2) Junction valves and stop valves
3) Junction valves and safety valves 4) Feed safety valves and stop valves
5)None of these
Answer : Junction valves and stop valves
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The engine oil at 150 °C is cooled to 80 °C in a parallel flow heat exchange by water entering at 25 °C and leaving at 60 °C. What will be the exchange effectiveness will be _____.
1) 0.36 2) 0.46
3) 0.56 4) 0.66
5)None of these
Answer : 0.56
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The amount of heat required to raise the temperature of 1 kg of water from 0°C to the saturation temperature Ts °C at a given constant pressure is defined as _____.
1) Super-heat 2) Entropy
3) Latent heat 4) Sensible heat
5)None of these
Answer : Sensible heat
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Which of the following is the chief advantage of die casting ?
1) possibility of incorporating thick sections in small castings 2) casting of inserts is possible
3) wide tolerances are possible 4) high production rates are possible
5)None of these
Answer : high production rates are possible
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 If carbon present in cast iron is partly free and partly in combined state, it is called _____.
1) White cast iron 2) Grey cast iron
3) Molten cast iron 4) None of these
5)None of these
Answer : White cast iron
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What is the main purpose of annealing ?
1) to improve machinability 2) to improve magnetism
3) to increase hardness 4) to increase toughness
5)None of these
Answer : to improve machinability
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The purpose of transmission in an automobile is to vary the - 
1) speed of the automobile 2) torque of the automobile
3) power of the automobile 4) fuel efficiency of the automobile
5)None of these
Answer : torque of the automobile
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Which one of the following is not the advantage of CNC machine ?
1) Reduces inspection time 2) Reduces tooling time
3) Higher initial cost 4) Higher rate of production
5)None of these
Answer : Higher initial cost
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Which one of the following processes is used for removing scratches from the previous operations ?
1) Enamelling 2) Painting
3) Oxidation 4) Polishing
5)None of these
Answer : Painting
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 What is the used of  a feeler gauge to check ----------  ?
1) Radius 2) Screw pitch
3) Surface roughness 4) Unsymmetrical shape
5)Thickness of clearance
Answer : Thickness of clearance
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