Free Printable ME 8712 TECHNICAL SEMINAR LAB MCQ

1.

Representative fraction is the ratio between the drawing size of object to actual size of object. if ratio is 1:1 ,then the scale of the drawing is

a)

full size scale

b)

enlarged scale

c)

reduced scale

d)

none of these

2.

A square lamina in isometric projection appears as

a)

Rhombus

b)

Rectangle

c)

Trapezium

d)

Parallelogram

3.

which among the following is termed as the language of an engineer?

a)

ISO standards

b)

ASTM standards

c)

Engineering drawing

d)

non of these

4.

A solid cone is placed on a table in inverted position , its cut by a knife parallel to the base of the cone. the cut surface of the solid cone will be a

a)

circle

b)

square

c)

rectangle

d)

none of these

5.

In ancient times, the person who draws components drawings on a drawing sheet is known as

a)

Designer

b)

Design engineer

c)

Draftsman

d)

skilled operator

6.

A flat surface can be produced by a lathe machine, if the cutting tool moves _____

a)

parallel to the axis of rotation of workpiece

b)

perpendicular to the axis of rotation of workpiece

c)

at an angle of 450

d)

none of the above

7.

The function of taper turning process is to ____

a)

reduce the diameter of a workpiece along its length

b)

reduce the diameter by removing material about an axis offset from the axis of workpiece

c)

remove the material from end surface of a workpiece

d)

all of the above

8.

Which of the following energy conversion devices convert heat into work?

a)

Electrical generators

b)

I. C engines

c)

Condensers

d)

All of the above

9.

Which of the following statements are false for reaction turbines?

1. Flow of water can be regulated without any losses

2. It works on the principle of impulse and reaction

3. They are suitable for low heads

4. Water flows at constant atmospheric pressure over the runner

a)

a. 1, 2 and 3

b)

b. 2 and 4

c)

c. 1 and 4

d)

d. 1, 2, 3 and 4

10.

In four stroke cycle engine, cycle is completed in ______

a)

a. two strokes of the piston

b)

b. two revolutions of the crankshaft

c)

c. three strokes of the piston

d)

d. four revolutions of the crankshaft

11.

Which type of bearings are known as anti friction bearings?

a)

a. Sliding contact bearings

b)

b. Rolling contact bearings

c)

c. Both a. and b.

d)

d. None of the above

12.

In stress-strain diagram, up to proportional limit ______

a)

a. stress is inversely proportional to strain

b)

b. force is directly proportional to displacement

c)

c. stress is directly proportional to strain

d)

d. strain is directly proportional to stress

13.

Deformation per unit length is called as ________

a)

a. strain

b)

b. stress

c)

c. modulus of elasticity

d)

d. none of the above

14.

Which of the following is an extensive property?

a)

a. Volume

b)

b. Pressure

c)

c. Viscosity

d)

d. All of the above

15.

How is absolute pressure measured?

a)

a. Gauge pressure + Atmospheric pressure

b)

b. Gauge pressure – Atmospheric pressure

c)

c. Gauge pressure / Atmospheric pressure

d)

d. None of the above

16.

The unit of force in S.I. units is

a)

(a) kilogram

b)

(b) newton

c)

(c) watt

d)

(d) joule.

17.

The unit of work or energy in S.I. units

is

a)

(a) newton

b)

(b) pascal

c)

(c) kilogram meter

d)

(d) joule.

18.

Forces are called concurrent when their lines of action meet in

a)

(a) one point

b)

(b) two points

c)

(c) plane

d)

(d) perpendicular planes

19.

Effect of a force on a body depends upon

a)

(a) magnitude

b)

(b) direction

c)

(c) position or line of action

d)

(d) all of the above

20.

Which of the following is not a vector quantity

a)

(a) weight

b)

(b) velocity

c)

(c) acceleration

d)

(d) force

21.

The center of gravity of a uniform lamina

lies at

a)

(a) the center of heavy portion

b)

(b) the bottom surface

c)

(c) the mid point of its axis

d)

(d) all of the above

22.

In ideal machines

a)

(a) mechanical advantage is greater than

velocity ratio

b)

(b) mechanical advantage is equal to velocity

ratio

c)

(c) mechanical advantage is less than

velocity ratio

d)

(d) mechanical advantage is unity

23.

The angle which an inclined plane makes

with the horizontal when a body placed on it is about to move down is known as

angle of

a)

(a) friction

b)

(b) limiting friction

c)

(c) repose

d)

(d) kinematic friction

24.

If three forces acting in different

planes can be represented by a triangle, these will be in

a)

(a) non-equilibrium

b)

(b) partial equilibrium

c)

(c) full equilibrium

d)

(d) unpredictable

25.

he necessary condition for forces to be

in equilibrium is that these should be

a)

(a) coplanar

b)

(b) meet at one point ;

c)

(c) both (a) and (b) above

d)

(d) none of these

26.

The co-efficient of friction depends

upon

a)

(a) nature of surfaces

b)

(b) area of contact

c)

(c) shape of the surfaces

d)

(d) all of the above.

27.

The maximum frictional force which comes

into play when a body just begins to slide over another surface is called

a)

(a) limiting friction

b)

(b) sliding friction

c)

(c) rolling friction

d)

(d) kinematic friction

28.

Coulomb friction is the friction between

a)

(a) bodies having relative motion

b)

(b) two dry surfaces

c)

(c) two lubricated surfaces

d)

(d) solids and liquids

29.

According to Lami’s theorem

a)

(a) three forces acting at a point will be in

equilibrium

b)

(b) three forces acting at a point can be represented by a triangle, each side being proportional to force

c)

(c) if three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

d)

(d) if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

30.

Fluid is a substance which offers no

resistance to change of

a)

(a) pressure

b)

(b) flow

c)

(c) shape

d)

(d) volume

31.

Practical fluids

a)

(a) are viscous

b)

(b) possess surface tension

c)

(c) are compressible

d)

(d) possess all the above properties

32.

An ideal flow of any fluid must fulfill the following

a)

(a) Newton’s law of motion

b)

(b) Newton’s law of viscosity

c)

(c) Pascal’ law

d)

(d) Continuity equation

33.

Which fluid is used in hydraulic power systems?

a)

a. water

b)

b. oil

c)

c. non-compressible fluid

d)

d. all of the above

34.

Pressure of 1 bar is equal to

a)

a. 14.5 psi

b)

b. 145 psi

c)

c. 12.5 psi

d)

d. 145 x 10^-6 psi

35.

Pascal's law states that pressure in a confined body of liquid will act_____________in all

directions.

a)

a) erratically

b)

b) equally

c)

c) forward

d)

d) sequentially

36.

Hydraulic system is always a ______________.

a)

a) closed loop system

b)

b) open loop system

c)

c) open or closed loop system.

d)

none of these

37.

..................are shapeless substances that take the shape of their containers they can be liquids or gasses.

a)

a) Air

b)

b) Water

c)

c) Oil

d)

d) Fluids

38.

.............................use pressurized air or other gasses.

a)

a)Pneumatics

b)

b) hydraulics

c)

c) Electrical

d)

d) Electromechanical

39.

If Reynolds number is ___________ Laminar flow.

a)

a)<2000

b)

b) >2000

c)

c) <4000

d)

d) >4000

40.

A pump which develops a constant output is called .

a)

A) A high efficiency pump

b)

B) An impeller pump

c)

C) A positive displacement pump

d)

D) A variable volume pump

41.

gives speed control during a work stroke by regulating flow to the cylinder.

a)

A) Meter-in circuit

b)

B) Synchronizing circuit

c)

C) Meter-out circuit

d)

D) Sequential circuit

42.

Hydraulic motors are usually rated in

a)

A) Newton meters

b)

B) KW hour

c)

C) Horsepower

d)

D) Pounds force

43.

When system pressure exceeds the set pressure will be enabled to keep the system safe.

a)

A) Pressure sequence valve

b)

B) Pressure relief valve

c)

C) Pressure reducing valve

d)

D) Shuttle valve

44.

Find the pneumatic system component

a)

A) FRL unit

b)

B) Pump

c)

C) Tank

d)

D) Accumulator

45.

Regenerative circuit is used to the extending stroke.

a)

A) Regulate

b)

B) Slow down

c)

C) Maintain

d)

D) Speedup

46.

A definite area or a place where some thermodynamic process takes place is known as

a)

a) Thermodynamic system

b)

b) Thermodynamic circle

c)

c) Thermodynamic process

d)

d) Thermodynamic law

47.

The measurement of a thermodynamic property known as the temperature is based on

a)

a) Zeroth law of thermodynamics

b)

b) First law of thermodynamics

c)

c) The second law of thermodynamics

d)

d)None of these

48.

The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume is known as

a)

a) Specific heat at volume

b)

b) Specific heat at constant pressure

c)

c) Kilojoule

d)

d) None of these

49.

In a four-stroke cycle engine, the sequence of operation is

a)

a) Suction, compression, expansion and exhaust

b)

b) Suction. expansion, compression and exhaust

c)

c) Expansion, compression, suction and exhaust

d)

d) Compression, expansion, suction and exhaust

50.

The inventor of modern IC engine is

a)

Henry Ford

b)

Karl Benz

c)

Nikolaus Otto

d)

Rudolph Diesel

51.

A Gas turbine works on

a)

Ericsson cycle

b)

Rankine cycle

c)

Brayton cycle

d)

Stirling cycle

52.

In case of fluid flow, the stagnation point is a point where

a)

Velocity is continuously increased

b)

Velocity is zero

c)

Velocity becomes infinite

d)

Velocity becomes maximum

53.

Thermal efficiency of heat engine cycle is defined as

a)

Net Work input / Total Heat output

b)

Net Work output / Total Heat input

c)

Total Heat output / Net Work input

d)

Total Heat input / Net Work output

54.

In case of incompressible flow, downstream of converging nozzle is at

a)

High pressure and high velocity

b)

High pressure and low velocity

c)

Low pressure and high velocity

d)

None of the above

55.

Machining is a

a)

(a) shaping process

b)

(b) removal process

c)

(c) regenerative process

d)

(d) joining process.

56.

An object is machined to

a)

(a) fulfill its functional requirement

b)

(b) provide desirably good performance

c)

(c) render longer service life

d)

(d) all of the above.

57.

Feed rate is expressed in turning operation by

a)

(a) mm/revolution

b)

(b) mm/stroke

c)

(c) mm per min

d)

(d) none of the above.

58.

Rapid prototyping is a

a)

(a) joining process

b)

(b) removal process

c)

(c) regenerative manufacturing process

d)

(d) finishing process.

59.

Shaping grey cast iron block will produce

a)

(a) continuous chip with BUE

b)

(b) continuous chip without BUE

c)

(c) discontinuous chip of irregular size & shape

d)

(d) discontinuous chip of regular size & shape

60.

Cutting fluid is employed in machining for

a)

(a) cooling the tool and the job

b)

(b) lubricate at the rubbing surfaces

c)

(c) cleaning the machining zone

d)

(d) all of the above

61.

The work material, which is machined by HSS tool generally in dry condition, is

a)

(a) grey cast iron

b)

(b) mild steel

c)

(c) stainless steel

d)

(d) low alloy steel

62.

In high speed machining of steels the teeth of milling cutters may fail by

a)

(a) mechanical breakage

b)

(b) plastic deformation

c)

(c) wear

d)

(d) all of the above

63.

Tool life in turning will decrease by maximum extent if we double the

a)

(a) depth of cut

b)

(b) feed

c)

(c) cutting velocity

d)

(d) tool rake angle

64.

In cutting tools, crater wear develops at

a)

(a) the rake surface

b)

(b) the principal flank

c)

(c) the auxiliary flank

d)

(d) the tool nose

65.

To prevent plastic deformation at the cutting edge, the tool material should possess

a)

(a) high fracture toughness

b)

(b) high hot hardness

c)

(c) chemical stability

d)

(d) adhesion resistance

66.

Manufacturing is a process of converting raw material of

a)

Low value to high value

b)

High value to low value

c)

No value change

d)

All of the above

67.

Miniaturization is primarily concerned with

a)

Increase in the effectiveness of the product

b)

Compactness of the product

c)

Maximum utilization of the product

d)

Minimum utilization of the product

68.

The process best in terms of close control of tolerance and surface finish is

a)

Casting

b)

Forming

c)

Joining

d)

Machining

69.

Castability is poor for

a)

High melting point material

b)

Low melting point material

c)

Ductile material

d)

All of the above

70.

Lean manufacturing is based on

a)

CNC connected system

b)

Rapid prototyping

c)

Inventory strategy

d)

Reducing waste

71.

Sand casted product are characterized as

a)

High tolerance limit and poor surface finish

b)

Low tolerance limit and good surface finish

c)

Low tolerance limit and poor surface finish

d)

High tolerance limit and good surface finish

72.

Component used to support the core in the mould cavity is

a)

Chills

b)

Core

c)

Riser

d)

Chaplet

73.

Green sand mould indicates that

a)

Polymeric mould has been cured

b)

Mould has been totally dried

c)

Mould is green in colour

d)

Mould contains moisture

74.

Investment casting is preferred for manufacturing of

a)

Turbine blade

b)

Turbine rotor

c)

Connecting rods

d)

Cast iron pipes

75.

Minimum temperature at which new grains are formed in metal is called

a)

Eutectic temperature

b)

Recrystallization temperature

c)

Eutectoid temperature

d)

Peritectic temperature

ME 8712 TECHNICAL SEMINAR LAB MCQ

Total questions: 75

Worksheet time: 1hrs 15mins

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