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Mock Test: SSC JE (ME)- 7 - Mechanical Engineering MCQ


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30 Questions MCQ Test - Mock Test: SSC JE (ME)- 7

Mock Test: SSC JE (ME)- 7 for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Mock Test: SSC JE (ME)- 7 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Mock Test: SSC JE (ME)- 7 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Mock Test: SSC JE (ME)- 7 below.
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Mock Test: SSC JE (ME)- 7 - Question 1

The moment diagram for a centilever beam carrying uniformly distributed load will be

Mock Test: SSC JE (ME)- 7 - Question 2

The moment diagram for a cantilever beam carrying concentrated load at end of the beam will be

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Mock Test: SSC JE (ME)- 7 - Question 3

Turbine is tripped when the

Mock Test: SSC JE (ME)- 7 - Question 4

Diesel fuel, compared to petrol is

Detailed Solution for Mock Test: SSC JE (ME)- 7 - Question 4

Diesel is in principle easier to refine than gasoline, however it contains more pollutants that must be extracted before it can reach the same levels of emissions as petrol. Per litre, diesel contains more energy than petrol and the vehicle’s engine combustion process is more efficient, adding up to higher fuel efficiency and lower CO2 emissions when using diesel.

Mock Test: SSC JE (ME)- 7 - Question 5

The rollers of a cycle chain are subjected to following type of stress

Mock Test: SSC JE (ME)- 7 - Question 6

Two sheets of same material but different thickness can be butt welded by

Mock Test: SSC JE (ME)- 7 - Question 7

In arc welding operations the current value is decide by

Mock Test: SSC JE (ME)- 7 - Question 8

Neutral flame has

Mock Test: SSC JE (ME)- 7 - Question 9

Sands are graded according to their

Mock Test: SSC JE (ME)- 7 - Question 10

If V is the volume of metal in a casting and A its surface area, then time of solidification will be
proportional to

Mock Test: SSC JE (ME)- 7 - Question 11

As the size of castings increases, it is often better to use increasingly

Mock Test: SSC JE (ME)- 7 - Question 12

The usual ratio of forward and return stroke in shaper is

Mock Test: SSC JE (ME)- 7 - Question 13

Match List-I with List-II and select correct answer using the codes given below the lists:

Mock Test: SSC JE (ME)- 7 - Question 14

Match List-I (Elastic properties of an isotropic elastic material) with List-II (Nature of strain
produced ) and select the correct answer using the codes given below the lists:

 

Mock Test: SSC JE (ME)- 7 - Question 15

A long column fails by

Mock Test: SSC JE (ME)- 7 - Question 16

Match List-I with List-II and select correct answer using the codes given below the lists:

Mock Test: SSC JE (ME)- 7 - Question 17

A tapering bar (diameters of end sections being d1 and d2) and a bar of uniform cross section 'd' have the same length and are subjected the same axial pull. Both the bars will have the same extension if 'd' is equal to

Detailed Solution for Mock Test: SSC JE (ME)- 7 - Question 17

E = Stress / Strain = WL / ΔL A
For a tapering rod,
A = π d1 d2 / 4
ΔL = 4WL / π d1 d2 E
For a uniform cross section with diameter d,
A = π d2 / 4
 ΔL = 4WL / π d2 E

The bars have the same length l and are subjected to the same axial pull W. Then for the same extension ΔL
4WL / π d1 d2 E = 4WL / π d2 E
1/ d1d2 = 1/ d2
so d = 

Mock Test: SSC JE (ME)- 7 - Question 18

A spring of stiffness 1000 N/m is stretched initially by 10 cm from the underformed position.The work required to stretch it by another 10 cm is

Detailed Solution for Mock Test: SSC JE (ME)- 7 - Question 18

- Spring Work Formula: The work done to stretch a spring is given by the formula  W=1/2​k(xf2​−xi2​), where k is the spring constant,  xf is the final displacement, and xis the initial displacement.

- Given:
- Spring constant, k = 1000 N/m
- Initial stretch, xi= 0.1 m, (10 cm)
- Final stretch, xf = 0.2 m (20 cm)

- Calculating Work:
W=1/2(1000)((0.2)2−(0.1)2)
W=500(0.04−0.01)
W=500⋅0.03=15 J
- Conclusion: The work required is 15J which is equivalent to 15 Nm, which corresponds to option D.

 

Mock Test: SSC JE (ME)- 7 - Question 19

In planetary motion, following parameter remains constant

Mock Test: SSC JE (ME)- 7 - Question 20

The moment of inertia does not depend upon

Mock Test: SSC JE (ME)- 7 - Question 21

When a body falls freely under gravitational force it possesses

Mock Test: SSC JE (ME)- 7 - Question 22

Francis, kaplan and propeller turbines fall under the category of

Mock Test: SSC JE (ME)- 7 - Question 23

Reaction turbines are used for

Mock Test: SSC JE (ME)- 7 - Question 24

In a static fluid

Mock Test: SSC JE (ME)- 7 - Question 25

For a mechanism shown below, the mechanical advantage for the given configuration is

Mock Test: SSC JE (ME)- 7 - Question 26

The directions of Coriolis component of acceleration, 2wV, of the slider A with respact
to the coincident point B is shown in figure 1, 2, 3 and 4. Directions shown by figures

Mock Test: SSC JE (ME)- 7 - Question 27

Which one of the following drives is used for a constant velocity ratio, positive drive with large centre distance, between the driver and driven shafts ?

Mock Test: SSC JE (ME)- 7 - Question 28

Which type of gears are used for shaft axes having an offset ?

Mock Test: SSC JE (ME)- 7 - Question 29

In a governor, if the equilibrium speed is constant for all radii of rotation of balls, the governor is said to be

Mock Test: SSC JE (ME)- 7 - Question 30

Centrifugal tension in belts is

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