Engineering

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

Q1.	At the time of discharging the battery converts ?

1)	Mechanical energy into electrical energy.	2)	Electrical energy into chemical energy.
3)	Chemical energy into mechanical energy.	4)	Chemical energy into electrical energy.
5)	None of these

Q2.	What is the condition of perfect truss ?

1)	n = 2j - 2	2)	n = 2j - 3
3)	n = 2j -4	4)	n = 2j - 5
5)	None of these

Q3.	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

Q4.	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

Q5.	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

Q6.	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

Q7.	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

Q8.	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

Q9.	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

Q10.	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