記憶度
10問
27問
0問
0問
0問
アカウント登録して、解答結果を保存しよう
問題一覧
1
Which of the following mechanism represents an inversion of a single slider crank chain?
Whitworth quick return mechanism
2
What is a unique form of cast iron with worm shaped graphite particles?
Compacted graphite iron
3
What is the process of making Bolt heads by forging?
Upsetting
4
What do you call the difference between the higher limit and lower limit of size?
Tolerance
5
Which of the following is the major alloying element in invar?
Nickel
6
Which of the following is available in five slightly different nominal composition for applications which require high strength, good fabricating and fusing qualities, immunity to rust, free machining and a corrosion resistance equivalent to copper?
Everdur
7
Which of the following superalloys is age-hardenable?
Nimonic
8
__________ is the range of working temperature for soldering process.
180°C to 250°C
9
How are fullers used?
Forming Necks or grooves on cross section of a job
10
Which of the following is an example of drilling?
Oblique Cutting
11
__________ is also known as tube mills and are commonly used for wet grinding
Agitator ball mills
12
Which of the following device is used for transmitting energy in CNC Machine tools?
Recirculating ball screw and nut assembly
13
Aluminum is particularly satisfactory for applications requiring all of the following characteristics except _________
High Strength
14
____________ Is a polymer of chloroprene of the monovinyl acetylene type.
Neoprene
15
Why are Plasticizers added to plastics?
To increase flexibility of materials
16
A planer mechanism has 8 links and 10 rotary joints. Using a Gubler’s criterion, calculate the number of degree of freedom of the mechanism.
1
17
The Train Value of a Gear Train is__________
Reciprocal of the speed ratio
18
It is an age wrought iron which has mechanical properties comparable to those of heat treated alloy steel of the same order of hardness and resistance to corrosion similar to that of monel. What is this alloy of Nickel?
KR Monel
19
Kevlar epoxy composite is widely used in __________
Automobiles
20
An interrupted quenching process resulting in an austenite to martensite transition is _______.
Martempering
21
When crank rotates with uniform speed, it has _________ acceleration only.
Radial
22
Hand shears can be used for cutting sheets up to _________.
1.6mm
23
The moment diagram for a cantilever beam subjected to bending moment at the end of beam will be ________.
Rectangle
24
For a simply supported beam on two end support the bending moment is maximum
Where there is No Shear
25
Generally, In case of pure bending moment is constant throughout and the shear force is
Always Zero
26
Which type of key is used for mounting shifting gears in gear boxes?
Spline
27
Hard shifting of gears is due to
Worn out splines on the main shaft
28
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?
Tangent Key
29
Guest’s Theory of failure is applicable for following type of materials
Ductile
30
Rankine Theory of failures is applicable for the following type of materials
Brittle
31
Idler Pulley is used for
For applying tension
32
The Motion of a shaft in a circular hole is an example of ________
Incompletely Constraint
33
The angle between the line of stroke (line of motion of the follower) and the normal to the pitch curve at any point is preferred to as ______ angle.
Pressure
34
Which of the following thermit welding procedure welding procedures, produced high temperature?
Exothermal chemical reaction
35
In sulfuric acid, which of the following is suitable for handling acid in concentrations up to 50% and at a temperature including the boiling point?
Hastelloy B
36
What account for the backlash of spur gears?
Both module and pitch line velocity
37
A cotter joint is used to connect two __________ rods.
Co-axial
38
The rated life of a bearing varies
Inversely as cube of load
39
The center to center distance between two consecutive rivets in a row, is called
Pitch
40
When more than one spring or resisting member shares the load, the relative stiffness is the _______.
Modulus of Elasticity
41
Which of the following is a single crystal grown by vapor disposition?
Glass
42
Mechanical impact device that accepts accept material smaller than approximately 4 inches.
Mechanical impact mills
43
Which of the following occurs whenever is a disconuity or non-uniformity in an object?
Stress Concentration factor
44
A hard Material __________
Exhibit high modulus of elasticity
45
Which of the following is one of the best methods for increasing a spring fatigue’s life?
Shotpeening
46
The Distortion energy theory is known as _________.
Von Mises Theory
47
Which type of gears are used for shaft axes having an offset?
Hypoid gear
48
Surface hardening is desirable for a product that is subject to ______.
Fatigue
49
Which of the following is the ratio of the fatigue strength without a stress concentration to the fatigue stress with a stress concentration.
Fatigue Stress Concentration Factor
50
If the value of theoretical stress concentration is 1.0, then the value of fatigue stress concentration factor is equal to
1
51
Stress concentration in static loading having high influence in ____.
Brittle materials
52
Notch Sensitivity varies between
0 - 1
53
A force which is gradually applied and does not change in magnitude and direction with respect to time is called ______.
Static Load
54
_______ is defined as the maximum stress to which a material can be subjected without fatigue, regardless of the number of cycles.
Endurance limit
55
_______ is defined the localization of the high stresses due to the irregularities present in the component and abrupt changes to the cross section.
Stress Concentration
56
What is the most suitable material in TIG welding process
Alloy Steels
57
Fixing of both ends of simply supported beam that has only concentrated load at the midspan will increase the allowable load by ________.
50%
58
Spring back metal forming depends on _______.
Modulus of Elasticity
59
In order to get uniform thickness of the plate by rolling process, one provides
Chamber on roll
60
What is the results when mers join with a high degree of regularity in chain structure and mer orientation
Isotactic polymer
61
When column is subjected to an eccentric load, the stress induced in the column will be ______
Both direct and bending stress
62
A lap joint is always in _________ shear.
Single
63
The columns whose slenderness ratio is less than 80, are known as
Short columns
64
The angle of twist of shaft is
Inversely proportional to (shaft diameter)4
65
The strap end of a connecting rod of steam engine is joined by
Gib of cotter joint
66
Transverse fillet welded joints are designed for
Tensile strength
67
Stress Concentration factor is caused due to
All of the above
68
Wahl's stress factor __________ very rapidly as the spring index decreases.
Increase
69
In the levers of first type, the mechanical advantage is ________ one.
More than
70
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
0.4 times
71
In leaf springs, the longest leaf is known as
Master leaf