Question 1

The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about

Accepted Answer

A) 0.20% 
B) 0.40% 
C) 0.60% 
D) 1.40% 
E) None of the above 
A) 0.20% 
B) 0.40% 
C) 0.60% 
D) 1.40% 
E) None of the above C

Question 2

Silicon steel is used for

Accepted Answer

A) Ball bearings 
B) Boiler plates 
C) Industrial knives 
D) Dies 
E) Electrical stampings 
A) Ball bearings 
B) Boiler plates 
C) Industrial knives 
D) Dies 
E) Electrical stampings E

Question 3

Riser is generally located

Accepted Answer

A) near the parting line 
B) on the upper most section of the casting 
C) Parting off 
D) opposite to the pouring end 
E) near the deepest section of the mould 
A) near the parting line 
B) on the upper most section of the casting 
C) Parting off 
D) opposite to the pouring end 
E) near the deepest section of the mould B

Question 4

In centrifugal castings, the cores are generally made of

Accepted Answer

A) Green sand and molasses 
B) Plastic 
C) Wax 
D) Cores are not used 
E) Plaster of paris 
A) Green sand and molasses 
B) Plastic 
C) Wax 
D) Cores are not used 
E) Plaster of paris

Question 5

Which one does not fit with the rest in the following

Accepted Answer

A) Hammer 
B) Flatter 
C) Hot chiesel 
D) Reamer 
E) Hot punch 
A) Hammer 
B) Flatter 
C) Hot chiesel 
D) Reamer 
E) Hot punch

Question 6

In EDM the number of discharges perminute may be as high as

Accepted Answer

A) 3000 
B) 6000 
C) 6,000,000 
D) 60,000 
E) 600,000 
A) 3000 
B) 6000 
C) 6,000,000 
D) 60,000 
E) 600,000

Question 7

In a centre lathe gear box for changing spindle speeds the provision for speeds is made in

Accepted Answer

A) Arithmetical progression 
B) Geometrical progression 
C) Cubical progression 
D) Random members 
E) Square progression 
A) Arithmetical progression 
B) Geometrical progression 
C) Cubical progression 
D) Random members 
E) Square progression

Question 8

The grain size of moulding sand is expressed in terms of

Accepted Answer

A) Mean grain diameter 
B) Seive number 
C) Grain diameter 
D) Grain density 
E) Grain fitness number 
A) Mean grain diameter 
B) Seive number 
C) Grain diameter 
D) Grain density 
E) Grain fitness number

Question 9

Press die life is gauged by

Accepted Answer

A) loss in weight 
B) amount of burr produced 
C) change of colour 
D) Any of the above 
E) Parting off 
A) loss in weight 
B) amount of burr produced 
C) change of colour 
D) Any of the above 
E) Parting off

Question 10

Which of the following plate can be used for milling the sides of a hexagon nut?

Accepted Answer

A) Parting off 
B) 3 hole circle plate 
C) 45 hole circle plate 
D) 55 hole circle plate 
E) 24 hole circle plate 
A) Parting off 
B) 3 hole circle plate 
C) 45 hole circle plate 
D) 55 hole circle plate 
E) 24 hole circle plate

Question 11

During arc welding eyes need to be protected against

Accepted Answer

A) Microwaves 
B) Infrared and ultraviolet rays 
C) Intense glare 
D) X-rays and gamma rays 
E) High frequency waves 
A) Microwaves 
B) Infrared and ultraviolet rays 
C) Intense glare 
D) X-rays and gamma rays 
E) High frequency waves

Question 12

Porosity of a welded joint may be caused by

Accepted Answer

A) Poor base metal 
B) Low welding current 
C) High welding current 
D) Wrong size of electrode 
E) None of the above 
A) Poor base metal 
B) Low welding current 
C) High welding current 
D) Wrong size of electrode 
E) None of the above

Question 13

Discontinuous or segmental chips are formed while machining

Accepted Answer

A) Mild steel 
B) Brass 
C) Carbon steel 
D) Alloy steel 
E) Cast iron 
A) Mild steel 
B) Brass 
C) Carbon steel 
D) Alloy steel 
E) Cast iron

Question 14

A silver point is

Accepted Answer

A) The temperature of equilibrium between solid silver and liquid silver at normal atmospheric pressure 
B) The pointed location spot silver plated 
C) The temperature of equilibrium between liquid silver and silver vapour at normal atmospheric pressure 
D) The point on a instrument dial reading beyond which may be dangerous for the system 
E) The temperature at which silver melts 
A) The temperature of equilibrium between solid silver and liquid silver at normal atmospheric pressure 
B) The pointed location spot silver plated 
C) The temperature of equilibrium between liquid silver and silver vapour at normal atmospheric pressure 
D) The point on a instrument dial reading beyond which may be dangerous for the system 
E) The temperature at which silver melts

Question 15

Chips with built up edge are produced while machining

Accepted Answer

A) Non-ferrous materials 
B) Cast materials 
C) Hard materials 
D) Brittle material 
E) Ductile material 
A) Non-ferrous materials 
B) Cast materials 
C) Hard materials 
D) Brittle material 
E) Ductile material

Question 16

Out of the following tools which one is expected to have highest carbon percentage

Accepted Answer

A) Crowbar 
B) Ordinary file 
C) Circular saw 
D) Pliers 
E) Wrenches 
A) Crowbar 
B) Ordinary file 
C) Circular saw 
D) Pliers 
E) Wrenches

Question 17

In gas welding the maximum flame temperature occurs at

Accepted Answer

A) Inside the inner cone 
B) The inner cone 
C) Next to the inner cone 
D) The outer cone 
E) The tip of the flame 
A) Inside the inner cone 
B) The inner cone 
C) Next to the inner cone 
D) The outer cone 
E) The tip of the flame

Question 18

In orthogoual cutting of metals the cutting edge is

Accepted Answer

A) Perpendicular to the direction of tool travel 
B) Perpendicular to the work piece 
C) Perpendicular to the shear plane 
D) Perpendicular to the axis of cutting tool 
E) None of the above 
A) Perpendicular to the direction of tool travel 
B) Perpendicular to the work piece 
C) Perpendicular to the shear plane 
D) Perpendicular to the axis of cutting tool 
E) None of the above

Question 19

The efficiency of abrasive particles depends up

Accepted Answer

A) purity 
B) uniformity in composition 
C) hardness 
D) All of the above 
E) Parting off 
A) purity 
B) uniformity in composition 
C) hardness 
D) All of the above 
E) Parting off

Question 20

In order to avoid unscrewing while on a bicycle the shaft or the right padel is screwed in with

Accepted Answer

A) Right hand thread 
B) Left hand thread 
C) Hysteresis 
A) Right hand thread 
B) Left hand thread 
C) Hysteresis

The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about

Silicon steel is used for

Riser is generally located

In centrifugal castings, the cores are generally made of

Which one does not fit with the rest in the following

In EDM the number of discharges perminute may be as high as

In a centre lathe gear box for changing spindle speeds the provision for speeds is made in

The grain size of moulding sand is expressed in terms of

Press die life is gauged by

Which of the following plate can be used for milling the sides of a hexagon nut?

During arc welding eyes need to be protected against

Porosity of a welded joint may be caused by

Discontinuous or segmental chips are formed while machining

A silver point is

Chips with built up edge are produced while machining

Out of the following tools which one is expected to have highest carbon percentage

In gas welding the maximum flame temperature occurs at

In orthogoual cutting of metals the cutting edge is

The efficiency of abrasive particles depends up

In order to avoid unscrewing while on a bicycle the shaft or the right padel is screwed in with

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Exam 4: Mechanical Engineering: Casting, Machining, and Welding

The hardness of martensite in quenched plain carbon steels reaches almost a saturation value of carbon of about

Silicon steel is used for

Riser is generally located

In centrifugal castings, the cores are generally made of

Which one does not fit with the rest in the following

In EDM the number of discharges perminute may be as high as

In a centre lathe gear box for changing spindle speeds the provision for speeds is made in

The grain size of moulding sand is expressed in terms of

Press die life is gauged by

Which of the following plate can be used for milling the sides of a hexagon nut?

During arc welding eyes need to be protected against

Porosity of a welded joint may be caused by

Discontinuous or segmental chips are formed while machining

A silver point is

Chips with built up edge are produced while machining

Out of the following tools which one is expected to have highest carbon percentage

In gas welding the maximum flame temperature occurs at

In orthogoual cutting of metals the cutting edge is

The efficiency of abrasive particles depends up

In order to avoid unscrewing while on a bicycle the shaft or the right padel is screwed in with

Manufacturing Processes and Materials and Tools

Mechanical Engineering and Manufacturing Processes

Industrial Engineering and Manufacturing Processes and Materials

Mechanical Engineering Processes and Concepts

Manufacturing and Welding Processes

Manufacturing and Machining Techniques

Mechanical Engineering: Foundry, Machining, and Materials

Metal Cleaning, Abrasives, and Machining Techniques

Manufacturing and Materials Engineering

Technical Manufacturing and Engineering

Manufacturing Processes: Wood Moisture, Alloyed Cast Iron, Cutting Tools, Welding

Techniques for Hardness Testing, Drilling, Machining, Welding, and Casting

Machining Processes, Techniques and Tools

Filters