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WorksheetsAssesment
Total questions: 50
Worksheet time: 40mins
Which of the following is included in machining process?
extrusion
soldering
drilling
coating
Which of the following is the type of permanent joining process?
welding
soldering
both welding and soldering
none of the mentioned
In ____type of manufacturing process, material is wasted. It is in the form of chips.
machining process
casting process
joining process
forming and shaping process
Which of the following component withstand the high temperature in casting process?
clay
moisture
silica
water
Traversing of tool parallel to the axis of job is termed as_____
cross feed
longitudinal feed
both cross feed and traversing feed
none of the mentioned
Which of the following is the example of multi point cutting tool?
milling cutter
broaching tool
both milling utter and broaching tool
none of the mentioned
The stress at which extension of a material takes place more quickly as compared to the increase in load is called ____________
Elastic point
Plastic point
Breaking point
Yielding point
Highest value of stress for which Hooke’s law is applicable for a given material is called ____________
Stress limit
Strain limit
Proportional limit
Elastic limit
What will be the elastic modulus of a material if the Poisson’s ratio for that material is 0.5?
Equal to its shear modulus
Three times its shear modulus
Four times its shear modulus
Not determinable
What is the bulk modulus of elasticity?
The ratio of shear stress to shear strain
The ratio of direct stress to direct strain
The ratio of volumetric stress to volumetric strain
The ratio of direct stress to volumetric strain
The maximum strain energy stored at elastic limit is __________
Resilience
Proof resilience
Elasticity
Malleability
When a beam is subjected to simple bending, ____________ is the same in both tension and compression for the material.
Modulus of rigidity
Modulus of elasticity
Poisson’s ratio
Modulus of section
At the neutral axis, bending stress is _____
Minimum
Maximum
Zero
Constant
What are the units for section modulus?
m2
m3
m4
m
In cantilever beams, the slope is _____________ at fixed end.
Maximum
Zero
Minimum
Uniform
In simply supported beams, deflection is zero at _________
Mid span
Supports
Through out
Point of action of load
Gold, Copper and lead are the examples of ______
Ductility
Creep
Plasticity
Malleability
The stress acts tangential to circumference is called ______ stress.
Hoop
Fluid
Longitudinal
Yield
____________ is half the circumferential stress.
Hoop stress
Longitudinal stress
Fluid stress
Transverse stress
Bending moment in a beam is maximum when the _________
Shear force is minimum
Shear force is maximum
Shear force is zero
Shear force is constant
1 Bar = ______ mm of Hg.
10.3
760
720
1000
1 Tonne = ______ KJ/s.
2.67
1.087
3.5
232.6
What is the common application of Air standard refrigeration system?
Domestic refrigerators
Aircraft air conditioning
Cold storage
Car air conditioning system
In a refrigerating machine, heat rejected is ________ the heat absorbed.
equal to
less than
in unity with
greater than
What is the difference between Heat Pump and Refrigerator?
Heat Pump Gives efficiency and refrigerator gives C.O.P.
Both are similar
Both are almost similar, just the desired effect is different
Work is output in refrigerator and work is input in heat pump
What is the equation between efficiency of Heat engine and C.O.P. of heat pump?
ηE = (C.O.P.)P
ηE = 1 / (C.O.P.)P
ηE / (C.O.P.)P = 1
ηE x (C.O.P.)P = 0
Thermal conductivity is maximum for which substance
Silver
Ice
Aluminum
Diamond
The rate equation used to describe the mechanism of convection is called Newton’s law of cooling. So rate of heat flow by convection doesn’t depend on
Convective heat transfer coefficient
Surface area through which heat flows
Time
Temperature potential difference
Failure in rivet occurs by which mode?
Shear
Compression
Tensile
Each of the mentioned
Which of the following are true for buttress threads?
Combination of square and trapezoidal threads
Transmit motion in one direction only
They are used in vices
All of the mentioned
Tr 40 x 14(P 7), here 14 indicates
Pitch
Lead
Diameter
Length
A spring of stiffness constant k is cut in two equal parts. The stiffness constant of new spring will be k/2.
True
False
cant say
If force act in a direction parallel to the direction of weld, then fillet weld is called as?
Transverse
Longitudinal
Parallel
Longitudinal or Parallel
A_______ bearing supports the load acting along the axis of the shaft.
Thrust
Radial
Longitudinal
Transversal
Pressure angle is _____ in case of cycloidal teeth.
Constant
Variable
zero
None of the listed
Product of diametric pitch and circular pitch is?
π
1/π
None of the listed
2
The value of the Bulk Modulus of an ideal fluid is
zero
unity
infinity
less than that of a real fluid
Which of the following correctly states how the viscosities of a liquid and a gas will change with temperature?
Viscosity increases with the increase in temperature of a liquid and decreases with the increase in temperature of a gas
Viscosity increases with the increase in temperature of a liquid and increases with the increase in temperature of a gas
Viscosity decreases with the increase in temperature of a liquid and decreases with the increase in temperature of a gas
Viscosity decreases with the increase in temperature of a liquid and increases with the increase in temperature of a gas
In stable equilibrium for completely submerged bodies what is the relation between forces?
Buoyancy force= Weight of body,the centre of buoyancy is below the centre of gravity.
Buoyancy force=Weight of body, the centre of buoyancy is above the centre of gravity.
Buoyancy force < Weight of body
None of the mentioned
Which of the following is correct?
In steady flow, pathlines and streamlines are identical
In steady flow, pathlines and streaklines are identical
In steady flow, streaklines and streamlines are identical
In steady flow, pathline, streamlines and streaklines are all identical
If a liquid enters a pipe of diameter d with a velocity v, what will it’s velocity at the exit if the diameter reduces to 0.5d?
v
4v
2v
3v
The continuity equation is based on the principle of
conservation of mass
conservation of momentum
conservation of energy
conservation of force
What is the total loss developed in a series of pipes?
Sum of losses in each pipe only
Sum of local losses only
Sum of local losses plus the losses in each pipe
Zero
If the two reservoirs are kept at the same level, the head loss is _______
Z1-Z2
Zero
T2-T1
S2-S1
Coefficient of friction of a laminar flow is_________
Re/16
Re/64
16/Re
64/Re
The vertical intercept between EGL and HGL is equal to
pressure head
potential head
kinetic head
Piezometric head
Which of the following is not a way of classifying based on the shape of opening?
Rectangular notch
Circular notch
Trapezoidal notch
Stepped notch
Which device is popularly used for measuring difference of low pressure?
Inverted U-tube Differential Manometer
U-tube Differential Manometer
Inclined Single column manometer
Vertical Single column manometer
Square root of the ratio of inertia force to elastic force is called as
Mach's Number
Eular's Number
Both a. and b.
None of the above
Centrifugal pumps transport fluids by converting _________
Kinetic energy to hydrodynamic energy
Hydrodynamic energy to kinetic energy
Mechanical energy to kinetic energy
Mechanical energy to Hydrodynamic energy
