Engineering

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

Q31.	if there are b branches and n nodes the number of equations will be

1)	n-1	2)	b
3)	b-n	4)	b-n+1
5)	None of these

Q32.	The minimum requirements for causing flow of current are

1)	a voltage source,a resistor, and a switch.	2)	a voltage source and a conductor
3)	a power source and a bulb	4)	a voltage source,a conductor,an ammeter and a switch
5)	None of these

Q33.	Due to the existence of  which of the following, the current flowing in an electrical circuit ?

1)	mmf	2)	emf
3)	Resistance	4)	Reluctance
5)	None of these

Q34.	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

Q35.	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

Q36.	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

Q37.	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

Q38.	In a linear system, an input of 5 sin wt produces an output of 10 cos wt. The output corresponding to input 10 cos wt will be equal to -

1)	+ 5 sin wt	2)	- 5 sin wt
3)	+ 20 sin wt	4)	– 20 sin wt.
5)	None of these

Q39.	For an SCR, di/dt protection is achieved through the use of  which of the following series ?

1)	R in series with SCR	2)	L in series with SCR
3)	RL in series with SCR	4)	RLC in series with SCR
5)	None of these

Q40.	The electric field lines and equipotential lines -

1)	Are parallel to each other	2)	Are one and the same
3)	Cut each other orthogonally	4)	Can be inclined to each other at any angle
5)	None of these