RRB JE-Mechanical Engineering Solved Paper-5

Test Preparation on RRB JE-Mechanical Engineering Solved Paper-5

1.

In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile dress is

1more
2less
3same
4may have any value

2

2.

Cavitation occurs in cent r fungal pumps when this ion pressure is

1equal to the vapour pressure of the liquid atthe temper ature
2less than the vopour pressure of the liquid atthe temper ature
3more than the vapour pressure of the liquidat the temper ature
4none of the above

3.

For an application involving high discharge and low-pressure

1a centri fugal pump with blades of forwardcurvature
2a cent r ifugal pump with blades of backwardcurvature
3an axial flow pump
4a reciprocat ing pump

4.

The horsepower t r and t t ed by a belt I dependent upon

1tension on tight and slack side of the bel t(T1, T2)
2radius of the pulley (R)
3speed of the pulley (N)
4all of these

5.

Which of the following has no unit

1kinemat ic viscosity
2sur face tension
3bulk modulus
4strain

6.

MIS stands for

1military inspect ion scheme
2management informat ion system
3management intelligence system
4management informat ion system

7.

Two springs having spring constant k andar rangement as shown in figure. Equivalentspr ing constant keq isk m k

1k/2
2k
32k
44k

8.

ABC analysis deals with

1analysis of process char t
2flow of mater ial
3schedule of job
4cont rolling inventory costs money

9.

The ratio of elongat ion in a pr ismat ic bar due toits own weight (W) as compared to another similarbar car rying an addit ional weight (W) will be

11 : 2
21 : 3
31 : 4
41 : 2.5

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