Mock Test: SSC JE (ME)- 1

# Mock Test: SSC JE (ME)- 1

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## 100 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Mock Test: SSC JE (ME)- 1

Mock Test: SSC JE (ME)- 1 for Mechanical Engineering 2023 is part of Mechanical Engineering SSC JE (Technical) preparation. The Mock Test: SSC JE (ME)- 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Mock Test: SSC JE (ME)- 1 MCQs are made for Mechanical Engineering 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Mock Test: SSC JE (ME)- 1 below.
Solutions of Mock Test: SSC JE (ME)- 1 questions in English are available as part of our Mechanical Engineering SSC JE (Technical) for Mechanical Engineering & Mock Test: SSC JE (ME)- 1 solutions in Hindi for Mechanical Engineering SSC JE (Technical) course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Mock Test: SSC JE (ME)- 1 | 100 questions in 100 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Mechanical Engineering SSC JE (Technical) for Mechanical Engineering Exam | Download free PDF with solutions
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Mock Test: SSC JE (ME)- 1 - Question 1

### An ideal gas at 27ºC is heated at constant pressure till its volume becomes three times. What would be then the temperature of gas?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 1

T1 = 27 +273 =300 K

V1 =V

V2=3V

T2 =?

use  P1V1/T1  = P2V2/T2

GIVEN P1 =P2

SO V1/T1 =V2/T2

V/300 = 3V/T2

T2 =900K

= 627°C

Mock Test: SSC JE (ME)- 1 - Question 2

### Measurement of temperature is based on which law of thermo dynamics?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 2

Law of thermodynamics is the basis for measurement of temperature and setting its scale. In simple word, Zeroth law of thermodynamics says that “When two bodies are separately in thermal equilibrium with the third body, then the two are also in thermal equilibrium with each other.”

Mock Test: SSC JE (ME)- 1 - Question 3

### Hot coffee stored in a well insulated thermos flask is an example of

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 3

As the hot coffee remains hot for a long time so neither heat nor mass is exchanged with the surroundings and hence it is an example of isolated system.

Mock Test: SSC JE (ME)- 1 - Question 4

Which one of the following expresses the reversible work done by the system (steady flow)
between states 1 and 2?

Mock Test: SSC JE (ME)- 1 - Question 5

A closed system receives 60 kJ heat but its internal energy decreases by 30 kJ. Then the work done by the system is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 5

Qsupplied = 60KJ

du= -30 KJ

from first law of thermo=

dQ = du + dW

60 = -30 + dW

dW = 90 KJ

Mock Test: SSC JE (ME)- 1 - Question 6

Work transfer between the system and the surroundings

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 6

The work is the path function so the work transfer between the system and the surrounding depend on the path that followed by tha system.

Mock Test: SSC JE (ME)- 1 - Question 7

The value of for an irreversible cycle is

Mock Test: SSC JE (ME)- 1 - Question 8

One Joule (J) is equal to

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 8

1 joule (J) = 1.00 newton meters (N-m)

Mock Test: SSC JE (ME)- 1 - Question 9

The temperature at which the volume of a gas becomes zero is called

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 9

General gas equation

pv=mrt

at absolute zero kelvin temp.
pressure =zero

that means

0×v= mr×0

therefore volume will be zero at absolute zero kelvin temp.

Mock Test: SSC JE (ME)- 1 - Question 10

The molecular mass expressed in gram (i.e. 1 gmole) of all gases, at N. T. P., occupies a volume of

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 10

According to Avogadro's law ,the volume of a gram mole of all gases at the pressure of 760 mm of Hg and temperature of 0 degree centigrade is same and is equal to 22.4 litres.

Mock Test: SSC JE (ME)- 1 - Question 11

The sum of internal energy (U) and the product of pressure and volume (p.v) is known as

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 11

dU + PdV = dH which is enthalpy

Mock Test: SSC JE (ME)- 1 - Question 12

Carnot cycle has maximum efficiency for

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 12

No engine working between two given temperatures can be more efficient than a reversible engine working between the same two temperatures and that all the reversible engines working between the same two temperatures have the same efficiency, whatever the working substance may be.

Mock Test: SSC JE (ME)- 1 - Question 13

A refrigeration system

Mock Test: SSC JE (ME)- 1 - Question 14

The C.O.P. of a refrigerator working on a reversed Carnot cycle is where
T1 = Lowest absolute temperature, and
T2 = Highest absolute temperature

Mock Test: SSC JE (ME)- 1 - Question 15

The leakage in a refrigeration system using freon is detected by

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 15

The leaks in a refrigeration system using Freon are detected by Halide torch which on detection produces greenish flame lighting

Mock Test: SSC JE (ME)- 1 - Question 16

The COP of a heat pump βhp and the COP of a refrigerator βRef are related as

Mock Test: SSC JE (ME)- 1 - Question 17

In electrolux refrigerator

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 17

The hydrogen passes across the surface of the ammonia. It lowers the ammonia vapor pressure enough to allow the liquid ammonia to evaporate. The evaporation of the ammonia extracts heat from the evaporator. This, in turn, extracts heat from the food storage space, lowering the temperature inside the refrigerator.

Mock Test: SSC JE (ME)- 1 - Question 18

The correct sequence of the given four cycles on T-s plane in figure 1, 2, 3, 4 is

(1)

(2)

(3)

(4)

Mock Test: SSC JE (ME)- 1 - Question 19

An Otto cycle has a compression ratio of 8. If 250 kJ of work is extracted from the cycle, the heat rejected by the cycle is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 19

Mock Test: SSC JE (ME)- 1 - Question 20

The two reference fuels used for cetane rating are

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 20

Cetane and alpha-methyl naphthalene are the reference fuels taken for cetane rating.

Mock Test: SSC JE (ME)- 1 - Question 21

The stoichiometric air-fuel ratio for petrol is 15 :1. What is the air-fuel ratio regarded for maximum power ?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 21

For maximum power, slightly rich mixture is required in order to burn more fuel and get energy.

Mock Test: SSC JE (ME)- 1 - Question 22

Match List-I (SI Engine Operating Mode) with List –II (Appromimate A/F Ratio) and select the correct answer using the code given below the lists

List - I (SI Engine Operational Mode)

A. Idling

B. Cruising

C. Maximum Power

D. Cold starting

List-II (A/F Ratio Supplied by the Carburetor)

1. 3

2. 10

3. 13

4. 16

5. 20

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 22

The air fuel ratio for different operations is given below

Idling – 10

Cruising – 16

Maximum Power – 13

Cold Starting – 3

Mock Test: SSC JE (ME)- 1 - Question 23

A spark plug gap is kept from

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 23

spark plug gap is kept from- 0.3-0.7 mm because 0.3-0.7 is perfect gap for making spark in spark plug.

Mock Test: SSC JE (ME)- 1 - Question 24

The ignition quality of petrol is expressed by

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 24

Ignition quality of petrol is expressed by octane number and that of diesel by cetane number.

Mock Test: SSC JE (ME)- 1 - Question 25

Which of the following is not a boiler mounting?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 25

Economizer is boiler accessory and others are mounting

Mock Test: SSC JE (ME)- 1 - Question 26

The function of a safety valve is

Mock Test: SSC JE (ME)- 1 - Question 27

An air preheater is installed

Mock Test: SSC JE (ME)- 1 - Question 28

Match List-I (Type of boiler) with List-II (Classification of boiler) select the correct answer
using the codes given below the lists:

Mock Test: SSC JE (ME)- 1 - Question 29

Benson boiler is one of the high pressure boilers having

Mock Test: SSC JE (ME)- 1 - Question 30

The draught in locomotive boilers is produced by

Mock Test: SSC JE (ME)- 1 - Question 31

The function of economizer in a boiler is to

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 31

Boiler Economiser ( Sometimes Called Economizer ) is the Energy improving device that helps to reduce the cost of operation by saving the fuel. In boilers, economizers are generally Heat Exchangers which are designed to exchange heat with the fluid, generally water.

Mock Test: SSC JE (ME)- 1 - Question 32

The critical pressure ratio for maximum discharge through a nozzle is given by

Mock Test: SSC JE (ME)- 1 - Question 33

Surging basically implies

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 33

Surging is caused due to unsteady, periodic and reversal of flow through the compressor when the compressor has to operate at less mass flow rate than a predetermined value

Mock Test: SSC JE (ME)- 1 - Question 34

Phenomenon of chocking in compressor means

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 34

Choking is the condition which occurs in the compressor in which it operates at very high mass flow rate and flow through the compressor can't be further increased as mach number at some part of the compressor reach to unity i.e. to sonic velocity and the flow is said to be choked.

Mock Test: SSC JE (ME)- 1 - Question 35

The instantaneous centre of rotation of a rigid thin disc rolling on a plane rigid surface is located at

Mock Test: SSC JE (ME)- 1 - Question 36

A four-bar chain has

Mock Test: SSC JE (ME)- 1 - Question 37

Which one of thefollowing conversions is used by a lawn-sprinkler which is a four barme chanisms?

Mock Test: SSC JE (ME)- 1 - Question 38

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)- 1 - Question 39

The number of degrees of freedom of an epicyclic gear train is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 39

Two Cases
1 DOF - when the sun is constant and planet is roatating as well as revolving around sun and arm rotating.
2 DOF - when sun and arm are rotating and planet is rotating as well as revolving around sun.

Mock Test: SSC JE (ME)- 1 - Question 40

In which one of the following is a fly wheel generally employed?

Mock Test: SSC JE (ME)- 1 - Question 41

The motion between a pair when limited to a definite direction, irrespective of the direction of force, applied, is known as

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 41

Completely constrained motion is a type of constrained motion in which relative motion between the links of a kinematic pair occurs in a definite direction by itself, irrespective of the external forces applied.

Mock Test: SSC JE (ME)- 1 - Question 42

Which of the following is an example of a higher pair?

Mock Test: SSC JE (ME)- 1 - Question 43

The relation between number of pairs (P) forming a kinematic chain and the number of links (l)

Mock Test: SSC JE (ME)- 1 - Question 44

The design calculations for members subject to fluctuating loads with the same factor of safety yield the most conservative estimates when using

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 44

Explanation : The Soderberg line is a more conservative failure criterion and there is no need to consider even yielding in this case.

Mock Test: SSC JE (ME)- 1 - Question 45

When a nut is tightened by placing a washer below it the bolt will be subjected to

Mock Test: SSC JE (ME)- 1 - Question 46

In a fillet welded joint, the weakest area of the weld is

Mock Test: SSC JE (ME)- 1 - Question 47

18/8 steel contains

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 47

18/8 stainless steel is nominally 18% chromium and 8% nickel, with the remainder being mainly iron; it does however also contain other elements, but at very low levels. It is also known as 302 or 304 grade stainless steel.

Mock Test: SSC JE (ME)- 1 - Question 48

An aluminium member is designed on the basis of

Mock Test: SSC JE (ME)- 1 - Question 49

Guest's theory is used for

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 49

MAXIMUM SHEAR STRESS THEORY (GUEST's or TRESCA's THEORY)

According to this theory, the elastic failure occurs when the greatest shear stress reaches a value equal to the shear stress at elastic limit in a simple tension test. This is used for ductile material

Mock Test: SSC JE (ME)- 1 - Question 50

The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kv as

Mock Test: SSC JE (ME)- 1 - Question 51

The dimensions of surface tension are

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 51

surface tension is often expressed as an amount of force exerted in the surface perpendicular to a line of unit length. The unit then is newtons per metre, which is equivalent to joules per square metre.

Mock Test: SSC JE (ME)- 1 - Question 52

If the surface tension of water air interface is 0.073 N/m, the gauge pressure inside a rain drop
of 1 mm diameter will be

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 52

Mock Test: SSC JE (ME)- 1 - Question 53

When can a piezometer be not used for pressure measurement in pipes?

Mock Test: SSC JE (ME)- 1 - Question 54

Three immiscible liquids of specific densities ρ , 2ρ and 3ρ are kept in a jar. The height of the liquids in the jar and at the piezo meter fitted to the bottom of the jar are as shown in the figure below.

The ratio H/h is.

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 54

Mock Test: SSC JE (ME)- 1 - Question 55

The critical value of Reynolds number for transition from laminar to turbulent boundary layer in external flows is taken as

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 55

For flow over a flat plate, transition from laminar to turbulent boundary layer occurs when Reynolds number at x exceeds Rex,crit ~ 500,000. Transition may occur earlier, but it is dependent especially on the surface roughness.

Mock Test: SSC JE (ME)- 1 - Question 56

The head loss in turbulent flow in pipe varies

Mock Test: SSC JE (ME)- 1 - Question 57

Laminar flow between closely spaced parallel plates is governed by the consideration of which one of the following pair of forces?

Mock Test: SSC JE (ME)- 1 - Question 58

A centrifugal pump gives maximum efficiency when its blades are

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 58

The efficiency of a centrifugal pump will be maximum when the blades are bent backward.

Mock Test: SSC JE (ME)- 1 - Question 59

A manometer is used to measure

Mock Test: SSC JE (ME)- 1 - Question 60

When a body is placed over a liquid, it will float if

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 60

Gravitational force i.e. weight should be less than the upthrust force for a body to float

Mock Test: SSC JE (ME)- 1 - Question 61

The discharge through a large rectangular orifice is given by

where H1= Height of the liquid above the top of the orifice,
H2= Height of the liquid abvoe the bottom of the orifice,
b = Breadth of the orifice, and
Cd= Coefficient of discharge

Mock Test: SSC JE (ME)- 1 - Question 62

The coefficient of viscosity may be determined by

Mock Test: SSC JE (ME)- 1 - Question 63

The unit discharge through the turbine is

Mock Test: SSC JE (ME)- 1 - Question 64

The deformation of a bar under its own weight as compared to that when subjected to a direct axial load equal to its own weight will be

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 64

Actually the deformation under a conectrated load P at end will give deformation equals to PL/AE.

The deformation due to self weight is is give by PL/2AE.

Mock Test: SSC JE (ME)- 1 - Question 65

What is the relationship between the linear elastic properties; Young's modulus (E), rigidity modulus
(G) and bulk modulus (K)?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 65

Mock Test: SSC JE (ME)- 1 - Question 66

Which one of the following mohr's circles represents the state of pure shear?

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 66

For pure shear, radius is equal to shear stress and the centre lies on the point of intersection of axes.

Mock Test: SSC JE (ME)- 1 - Question 67

Auto frettage is the method of

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 67

Mock Test: SSC JE (ME)- 1 - Question 68

A simply supported beam is loaded as shown in the figure below.

The maximum shear force in the beam will be

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 68

Mock Test: SSC JE (ME)- 1 - Question 69

The ratio of the compressive critical load for a long column fixed at both the ends and a column with one end fixed and the other end free is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 69

Mock Test: SSC JE (ME)- 1 - Question 70

A short column of external diameter D and internal diameter d carries an eccentric load W.
The greatest eccentricity which the load can be applied without producing tension on the crosssection of the column would be

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 70

Mock Test: SSC JE (ME)- 1 - Question 71

The Poisson's ratio for cast iron varies from

Mock Test: SSC JE (ME)- 1 - Question 72

The relation between Young's modulus (E), shear modulus (C) and bulk modulus (K) is given by

Mock Test: SSC JE (ME)- 1 - Question 73

The point of contraflexure occurs in

Mock Test: SSC JE (ME)- 1 - Question 74

The slenderness ratio is the ratio of

Mock Test: SSC JE (ME)- 1 - Question 75

Fatigue test is carried out for

Mock Test: SSC JE (ME)- 1 - Question 76

According to lami's theorem

Mock Test: SSC JE (ME)- 1 - Question 77

A couple produces

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 77

A couple in mechanics refers to two equal forces that act in opposite direction . The resultant force in a couple is zero, but it does have a moment of force(torque).A couple produces rotational motion in the object it is acting.

Mock Test: SSC JE (ME)- 1 - Question 78

The ratio of static friction to dynamic friction is always

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 78

The static friction is always greater than the dynamic friction and hence the ratio of a bigger number to a smaller number is more than 1

Mock Test: SSC JE (ME)- 1 - Question 79

A framed structure as shown fig. is a

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 79

A framed structure is perfect, if the number of members are equal to ( 2 n- 3) , where n is the no. of joints. In this figure, there are 3 joints ,therefore, (2*3-3) = 3
That means there are three members , so it is a perfect frame.

Mock Test: SSC JE (ME)- 1 - Question 80

Eutectoid reaction occurs at

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 80

In eutectoid reaction, the austenite transforms into a phase mixture of ferrite (containing 0.76% C) and cementite. This phase mixture is known as pearlite. The eutectoid reaction occurs at a constant temperature. This is known as eutectoid temperature and is 723oC

Mock Test: SSC JE (ME)- 1 - Question 81

Addition of magnesium to cast iron increases its

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 81

Magnesium is a powerful inoculant in cast iron. When added in concentrations exceeding 0.04%, it produces a spheroidal form of graphite that improves the iron's strength and ductility. Magnesium is an abundant metal with a price roughly comparable to that of aluminum, albeit usually higher

Mock Test: SSC JE (ME)- 1 - Question 82

Consider the following quenching media:
1. Oil
2. Water
3. WaterNaOH
4. Brine

The correct sequence of these media in order of increasing hardness of steel under going heat treatment is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 82

Explanation : Quenching Media

Four commonly used quenching media are :

1.Oil - slowest cooling rate

2. Water - moderate cooling rate

3. Brine - the fastest cooling rate

4. Liquid Nitrogen - used in automatic furnaces, can be very fast cooling.

Mock Test: SSC JE (ME)- 1 - Question 83

Gunmetal, which is used in journal bearings, contains

Mock Test: SSC JE (ME)- 1 - Question 84

A sand casting mould assembly is shown in the given figure. The elements marked A and B are respectively

Mock Test: SSC JE (ME)- 1 - Question 85

The process of removing the burrs of flash from a forged component in drop forging is called

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 85

Trimming is a manufacturing process that is used as a finishing operation for forged parts, in order to remove flash. Flash is a characteristic common in most metal forgings. For that reason trimming, while not technically a forging or even a forming operation in general, is discussed in this section. Trimming basically presses a part through a cutting die that runs the periphery of the work. The cutting die are precisely designed to remove the flash from a particular part. Most often it is desirable to perform this operation while the work is still hot for maximum efficiency, therefore it is usually incorporated into the larger production process. For more delicate forgings, flash can be ground or cut off using different methods. For certain metal forgings, this is an extremely quick and easy method for the removal of the extra material.

Mock Test: SSC JE (ME)- 1 - Question 86

Which one of the following processes is the wire drawing process?

Mock Test: SSC JE (ME)- 1 - Question 87

High speed electron beam of electron beam welding is focused on the weld spot using

Mock Test: SSC JE (ME)- 1 - Question 88

The ratio between Oxygen and Acetylene gases for neutral flame in gas welding is

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 88

The neutral flame has a one-to-one ratio of acetylene and oxygen. It obtains additional oxygen from the air and provides complete combustion. It is generally preferred for welding. The neutral flame has a clear, well-defined, or luminous cone indicating that combustion is complete

Mock Test: SSC JE (ME)- 1 - Question 89

The instrument or device used to measure the cutting forces in machings is

Mock Test: SSC JE (ME)- 1 - Question 90

Which of the following property is desirable in parts subjected to shock and impact loads?

Mock Test: SSC JE (ME)- 1 - Question 91

Wrought iron

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 91

Explanation : Wrought iron is an iron alloy with very low carbon content with respect to cast iron. It is soft, ductile, magnetic, and has high elasticity and tensile strength. It can be heated and reheated and worked into various shapes.

Mock Test: SSC JE (ME)- 1 - Question 92

18 - 4 - 1 high speed steel contains

Mock Test: SSC JE (ME)- 1 - Question 93

The type of tool used on lathe, shaper and planer is

Mock Test: SSC JE (ME)- 1 - Question 94

Flank wear occurs mainly on the

Mock Test: SSC JE (ME)- 1 - Question 95

Cutting fluids are used to

Mock Test: SSC JE (ME)- 1 - Question 96

The tool life is said to be over if

Mock Test: SSC JE (ME)- 1 - Question 97

A mandrel is used to hold

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 97

Mandrel is used to hold a hollow bar or a bar with a bore wen turning between live centre and dead cente of a lathe. A moving mandrel is also used for tube drawing

Mock Test: SSC JE (ME)- 1 - Question 98

In a planer

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 98

On the planer the work is moved against a stationary tool: on the shaper the tool moves across the work, which is stationary. On the planer the tool is fed into the work; on the shaper the work is usually fed across the tool. The drive on the planer table is either by gears or by hydraulic means.

Mock Test: SSC JE (ME)- 1 - Question 99

Surface grinding is done to produce

Detailed Solution for Mock Test: SSC JE (ME)- 1 - Question 99

Surface grinding is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.

Mock Test: SSC JE (ME)- 1 - Question 100

A simply supported beam 'A' of length l, breadth b and depth d carries a central load W. Another beam 'B' of the same dimensions carries a central load equal to 2 W. The deflection of beam 'B' will be __________ as that of beam 'A'.

## Mechanical Engineering SSC JE (Technical)

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## Mechanical Engineering SSC JE (Technical)

6 videos|97 docs|55 tests