EduRev
Courses
Login
New User
×
Login
Continue with Google
Continue with Facebook
New User?
Sign Up
OR
OR
Login
Forgot Password?
New User?
Sign Up
×
Create an Account
Continue with Google
Continue with Facebook
OR
Gender
Male
Female
I accept the
Terms & Conditions
.
Create Account
Already Have an Account?
Login
Mechanical Engineering
Ask a question
Rakesh Kumar
asked
• 8 minutes ago
On a P-V-T surface, the triple point and critical point are seen as respectively
a)
Line , Line
b)
Line, Point
c)
Point, Line
d)
None of the above
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Siddhant Gandhi
asked
• 10 minutes ago
Chilled cast iron is produced
a)
by adding magnesium to molten cast iron
b)
by quick cooling of molten cast iron
c)
from white cast iron by annealing process
d)
none of these
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Sreenath Narayandas
asked
• 29 minutes ago
A surface S(x,y)=2x+5y-3 is integrated once over a path consisting of the points that satisfy ( x +1)2+ (y − 1)2 = √2 . The integral evaluates to
a)
b)
c)
d)
0
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 35 minutes ago
The internal energy of an ideal gas is a function of
a)
pressure only
b)
absolute temperature only
c)
pressure and volume
d)
pressure, volume and temperature
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Rajan Kumar
asked
• 35 minutes ago
Boiler rating is usually defined in terms of
a)
Maximum temperature of steam in Kelvin
b)
Heat transfer rate in KJ/hr
c)
Heat transfer area in metre
2
d)
Steam output in kg/hr
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Santhosh Balivada
asked
• 37 minutes ago
When can a piezometer be not used for pressure measurement in pipes
a)
the pressure difference is low
b)
the velocity is high
c)
the fluid in the pipe is a gas
d)
the fluid in the pipe is highly viscous
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Anuj Singh
asked
• 52 minutes ago
A metal block is thrown into deep lake. As it sinks deeper in water, the buoyant force acting on it
a)
increases
b)
remains the same
c)
decreases
d)
first increases and then decreases
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Mounish Gangarapu
asked
• 1 hour ago
Which of the following is a mesomorphous material ?
a)
Mica
b)
Silver
c)
Lead
d)
Brass
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 1 hour ago
For two governors A and B, the lift of sleeve of governor A is more than that of governor B, fora given fractional change in speed. It indicates that
a)
governor A is more sensitive than governor B
b)
governor B is more sensitive than governor A
c)
both governor A and B are equally sensitive
d)
none of the above
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Akhilesh Svam
asked
• 1 hour ago
To make a worm drive reversible, it is necessary to increase
a)
centre distance
b)
worm diameter factor
c)
Number of starts
d)
reduction ratio
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Parag Patil
asked
• 1 hour ago
The mass of each ball of a Proell Governor is 3 kg and the weight on the sleeve is 20 kg. Each arm is 220 mm long and the pivots of upper and lower arms are 20 mm from the axis. For the mid position of the sleeve, the extension links of the lower arms are vertical, the height of the governor is 180 mm, the speed is 150 rpm and the radius of path of rotation of the masses is 147 mm. Determine the lengths of the extension link (in mm).
Correct answer is between '124,126'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 1 hour ago
When a component is subjected to axial stress the normal stress σ
n
is maximum, if cos θ is _______ . (σ
n
=σ
x
Cos
2
θ)
1. maximum
2. minimum
3. always one
4. always zero
a)
1 and 4
b)
1 and 3
c)
2 and 3
d)
2 and 4
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Bidhan Das
asked
• 1 hour ago
The material used for brake lining should have __________ coefficient of friction.
a)
low
b)
high
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 1 hour ago
The above figure shows a cam with a circular profile, rotating with a uniform angular velocity of ω rad/s.
What is the nature of displacement of the follower?
a)
Uniform
b)
Parabolic
c)
Simple harmonic
d)
Cycloidal
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 1 hour ago
Consider the following two processes:
a. A heat source at 1200 K loses 2500 kJ of heat to sink at 800 K
b. A heat source at 800 K loses 2000 kJ of heat to sink at 500 K
Which of the following statements is TRUE?
a)
Process I is more irreversible than Process II
b)
Process II is more irreversible than Process I
c)
Irreversibility associated in both the processes is equal
d)
Both the processes are reversible
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Vishal Umap
asked
• 1 hour ago
When a shear stress is applied to a substance, it is found to resist it by static deformation, the substance is
a)
liquid
b)
solid
c)
gas
d)
fluid
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 1 hour ago
The Euler's equation for the motion of liquids is based upon the assumption that
a)
the fluid is non-viscous, homogeneous and incompressible
b)
the velocity of flow is uniform over the section
c)
the flow is continuous, steady and along the stream line
d)
all of the above
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Shabhan Qurishi
asked
• 1 hour ago
The top of the piston in two-stroke engine is
a)
flat
b)
slanted
c)
crown shaped
d)
convex shaped
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Ashish Goyal
asked
• 1 hour ago
Which of the following is boiler mounting ?
a)
air pre-heater
b)
economizer
c)
fusible plug
d)
steam trap
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Chandralok Rajvanshi
asked
• 1 hour ago
A flywheel is fitted to the crankshaft of an engine having 'E' amount of indicated work per revolution and permissible limits of co-efficient of fluctuation of energy and speed as K
e
and K
s
respectively.
The kinetic energy of the flywheel is then given by
...
more
a)
b)
c)
d)
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 1 hour ago
The maximum fluctuation of speed is the
a)
difference of minimum fluctuation of speed and the mean speed
b)
difference of the maximum and minimum speeds
c)
sum of maximum and minimum speeds
d)
variations of speed above and below the mean resisting torque line
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Rohan Pal
asked
• 1 hour ago
If a bearing is designated by the number 305, it means that the bearing is of
a)
light series whose bore is 5 mm
b)
light series whose bore is 25 mm
c)
medium series whose bore is 5 mm
d)
medium series whose bore is 25 mm
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Nasiru Abdulkarim
asked
• 2 hours ago
Sorry can someone. Explain how we came about tan a=bsinx/a bsinx in vector addition?
Attach
Answer
to Question
Nirmal Mallick
asked
• 2 hours ago
A spherical pressure vessel is to be designed tohold 40 MPa pressure and Diameter should be200 mm. If max stress can be 200 MPa find thethickness required.
a)
5 mm
b)
15 mm
c)
10 mm
d)
20 mm
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Sahil Arora
asked
• 2 hours ago
The draught in locomotive boilers is produced by
a)
Chimney
b)
Centrifugal fan
c)
Steam jet
d)
Locomotion
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Mega Mega Mega Mega
asked
• 2 hours ago
The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where
h
= Height of a right circular solid cone.)
a)
h
/2
b)
h
/3
c)
h
/4
d)
h
/6
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Nirmal Mallick
asked
• 2 hours ago
In a 3 ton capacity water cooler, water enters at 30ºC and leaves at 15ºC steadily. What is the water flow rate per hour ?
a)
60 kg
b)
100 kg
c)
602 kg
d)
2520 kg
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Vekariya Rakesh
asked
• 2 hours ago
Consider the given figure:
Assertion (A): In order to have the same equilibrium speed for the given values of w, W and h, the masses of balls used in the Proell governor are less than those of balls used in the Porter governor.
Reason (R): The ball is fixed to an extension link in Proell governor.
...
more
a)
Both A and R are individually true and R is the correct explanation of A
b)
Both A and R are individually true but R is not the correct explanation of A
c)
A is true but R is false
d)
A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Uttam Sarkar
asked
• 2 hours ago
The domestic refrigerator has.a refrigeration load of the order of
a)
less than 0.25 ton
b)
between 0.5 and 1 ton
c)
more than 1 ton
d)
more than 5 ton
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Lavesh Kumar
asked
• 3 hours ago
Determine the couple moment acting on the beam shown.
a)
500Nm
b)
1500Nm
c)
740Nm
d)
50Nm
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Anunay Prasanna
asked
• 3 hours ago
The given diagram shows an isometric cooling process 1–2 of a pure substance. The ordinate and abscissa are respectively
a)
Pressure and volume
b)
Enthalpy and entropy
c)
Temperature and entropy
d)
Pressure and enthalpy
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Manish Patel
asked
• 3 hours ago
The concept of continuum in fluid flow assumes that the characteristics length of the flow is
a)
smaller than the mean free path of the molecules.
b)
larger than the mean free path of the molecule
c)
larger than the dimensions of the suspended particles
d)
larger than the wavelength of sound in the medium.
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 3 hours ago
Which of the following is not the desirable property of a good fuel?
a)
Economical in cost
b)
Minimum sulphur content
c)
High ignition point
d)
High heating value
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Manilesh Yadav
asked
• 3 hours ago
The moment of inertia of a solid cylinder of mass
m
, radius
r
and length
l
about the longitudinal axis or polar axis is
a)
mr
2
/2
b)
mr
2
/4
c)
mr
2
/6
d)
mr
2
/8
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Rameshwar Gore
asked
• 3 hours ago
A circular shaft subjected to twisting moment results in maximum shear stress of 60 MPa. Then the maximum compressive stress in the material is
a)
30 MPa
b)
60 MPa
c)
90 MPa
d)
120 MPa
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Plûtø Mürãli
asked
• 3 hours ago
A square key of side d/4 is to be fitted on a shaft of diameter d and in the hub of a pulley. If the material of the key and shaft is same and the two are to be equally strong in shear, what is the length of the key?
a)
πd/2
b)
2πd/3
c)
3πd/4
d)
4πd/5
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Neeraj Singh
asked
• 3 hours ago
In forced circulation boilers, about 90% of water is recirculated without evaporation. The circulation ratio is
a)
0.1
b)
0.9
c)
9
d)
10
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Harshit Dewangan
asked
• 3 hours ago
A load p is supported at B by two rods of the same material and same cross sectional area A determine strain energy for the system?
Attach
Answer
to Question
Mantu Das
asked
• 3 hours ago
Consider a two dimensional state of stress given for an element as shown in the diagram given below: What are the coordinates of the centre of Mohr's circle
a)
(0, 0)
b)
(100, 200)
c)
(200, 100)
d)
(50, 0)
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Akshay Jadhav
asked
• 3 hours ago
Which one of the following is true in respect of production control for continuous or assembly line production?
a)
Control is achieved by PERT network
b)
Johnson algorithm is used for sequencing
c)
Control is on one work centre only
d)
Control is on flow of identical components through several operations
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 3 hours ago
When the molten metal is poured in a mould, it may pass through the following items in sequence
a)
Sprue, runner, gate, top rise
b)
Runner, sprue, gate, top riser
c)
Top riser, runner, sprue, gate
d)
Gate, sprue, top riser, runner
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 3 hours ago
In which of the following welding techniques in vacuum environment required
a)
Ultrasonic welding
b)
Laser beam welding
c)
Plasma arc welding
d)
Electron beam welding
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Anhad Anand
asked
• 4 hours ago
The c.g. of a link in any mechanism would experience
a)
no acceleration
b)
linear acceleration
c)
angular acceleration
d)
both angular and linear accelerations
e)
none of the above
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Achuth Kumar Yelleti
asked
• 4 hours ago
Assertion (A): In a loaded beam, if the shear force diagram is a straight line parallel to the beam axis, then the bending moment is a straight line inclined to the beam axis.
Reason (R): When shear force at any section of a beam is zero or changes sign, the bending moment at that section is maximum.
a)
Both A and R are individually true and R is the correct explanation of A
b)
Both A and R are individually true but R is NOT the correct explanation of A
c)
A is true but R is false
d)
A is false but R is true
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Singanaboina Rajesh
asked
• 4 hours ago
During a non-flow isothermal reversible expansion, 1 kmol of
at 350 k expands from 0.06
to 0.15
Use Vander waals equation to determine
Final pressure of gas
...
more
a)
5.2 bar
b)
6.04 bar
c)
2.07 bar
d)
6.7 bar
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Kirankesavareddy Naredla
asked
• 4 hours ago
Consider the following statements for a throttling process:
1. It is an adiabatic process.
2. There is no work transfer in the process.
3. Entropy increases in throttling process
Which of these statements are correct ?
a)
1, 2 and 3
b)
1 and 2 only
c)
2 and 3 only
d)
1 and 3 only
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Pk Patel
asked
• 4 hours ago
Which one of the following statements is NOT true of rolling contact bearing?
a)
The bearing characteristic number is given by ZN/p where Z is the absolute viscosity of the lubricant, N is the shaft speed and p is the bearing pressure.
b)
Inner race of a radial ball bearing has an interference fit with the shaft and rotates along with it
c)
Outer race of the bearing has an interference fit with bearing housing and does not rotate
d)
In some cases, the inner race is stationary and outer race rotates
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Prabhakar Kumar
asked
• 4 hours ago
Magnesium crystallizes in HCP structure. If the lattice constant is 0.32 nm, the nearest neighbour distance in magnesium is
a)
0.64 nm
b)
0.32 nm
c)
0.16 nm
d)
0.8 nm
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Yadav
asked
• 4 hours ago
What is the deformation or dynamic factor if sum of errors on meshing teeth of steel pinion and gear is 32 x 10
-3
mm?
a)
284.8 N/mm
b)
300.23 N/mm
c)
320.5 N/mm
d)
368 N/mm
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Imran Memon
asked
• 4 hours ago
The Reynolds number for flow of a certain fluid in a circular tube is specified as 2500. What?
Attach
Answer
to Question
Abhishek Govil
asked
• 4 hours ago
Discharge of a centrifugal pump is
a)
directly proportional to N
b)
inversely proportional to N
c)
directly proportional to N
2
d)
inversely proportional to N
2
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 4 hours ago
∇ × ∇ × P, where P is a vector, is equal to
a)
b)
c)
d)
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Varun Tyagi
asked
• 4 hours ago
A jet of oil with relative density 0.7 strikes normally a plate with a velocity of 10 m/s. The jet has an area of 0.03 m
2.
The force exerted on the plate by the jet is
a)
210 N
b)
2.1 kN
c)
20.6 kN
d)
206 N
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 5 hours ago
The prime circle of a cam is
a)
the circle with center as the center of cam axis and radius such that it passes through the pitch point.
b)
the smallest circle drawn to the cam profile from the center of rotation of a radial cam.
c)
the smallest circle drawn to the pitch curve from the center of rotation of cam.
d)
the cam circle enclosing the cam profile.
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Kamal Bhardwaj
asked
• 5 hours ago
Consider the following statements:
1. The condition of stability of a governor requires that the slope of the controlling force curve should be less than that of the line representing the centripetal force at the equilibrium speed under consideration.
2. For a centrifugal governor when the load on the prime mover drops suddenly, the sleeve should at once reach the lower-most position.
Which of the statements given above is/are correct?
a)
Only 1
b)
Only 2
c)
Both 1 and 2
d)
Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Sermarani P
asked
• 5 hours ago
The essential condition for the transfer of heat from one body to another is.
a)
both bodies must be in physical contact
b)
heat content of one body must be more than that of the other
c)
one of the bodies must have a high value of thermal conductivity
d)
there must exist a temperature difference between the bodies
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Shubham Kumar
asked
• 5 hours ago
The intake charge in a diesel engine consists of
a)
air alone
b)
air + lubricating oil
c)
air + fuel
d)
air + fuel + lubricating oil
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 5 hours ago
The controlling force curves for a spring-controlled governor are shown in the above figure. Which curve represents a stable governor?
a)
1
b)
2
c)
3
d)
4
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Bidhan Das
asked
• 5 hours ago
The working surface above the pitch surface of the gear tooth is termed as
a)
addendum
b)
dedendum
c)
flank
d)
face
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Sirajul Haque
asked
• 5 hours ago
The amount of water evaporated in kg per kg of fuel burnt is called
a)
evaporative capacity of a boiler
b)
equivalent evaporation from and at 100º C
c)
boiler efficiency
d)
none of these
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Rani Kumari
asked
• 5 hours ago
The velocity at a point is given as
The equation of stream line is
a)
x + y = 0
b)
x + 2y = 0
c)
x – y = 0
d)
2x – y = 0
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Santosh Acharya
asked
• 5 hours ago
The bolts in a rigid flanged coupling connecting two shafts transmitting power are subjected to
a)
shear force and bending moment
b)
axial force
c)
torsion and bending moment
d)
torsion
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Animal Kingdom
asked
• 5 hours ago
Alcohol is used in manometers because
a)
it has low vapour pressure
b)
it is clearly visible
c)
it has low surface tension
d)
it can provide longer column due to low density
e)
is provides suitable meniscus
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Mantu Das
asked
• 6 hours ago
According to Euler's column theory, the crippl
...
more
wmoreSimilarforumquestion('1720303',event);">more
ing load for a column of length (l) with one end fixed and the other end hinged, is
a)
π²EI / l²
b)
π²EI / 4l²
c)
2π²EI / l²
d)
4π²EI / l²
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Bikash Pradhaan
asked
• 6 hours ago
A closed cylinder vessel made up of steel plates 4mm thick caries a fluid under the pressure of 3 N/mm2. The internal diameter of the cylinder is 250mm and length is 750mm. Calculate Hoop and Longitudinal stress?
Attach
Answer
to Question
Damzy Akintimehin
asked
• 6 hours ago
Effects of dynamic centrifugal forces on shaft bearing of an internal engine?
Attach
Answer
to Question
Abhishek Govil
asked
• 6 hours ago
There is no work transfer involved in this process
a)
Adiabatic expansion
b)
Isothermal expansion
c)
Polytropic expansion
d)
Free expansion
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Mahatma Soren
asked
• 6 hours ago
Mass is best given by _______
a)
Ratio of density to volume
b)
Product of volume and density
c)
Addition of mass and density
d)
Subtraction of mass and density
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Manoj Johar
asked
• 6 hours ago
The velocity profile for turbulent boundary layer is
a)
b)
c)
d)
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Shubham Parashar
asked
• 6 hours ago
नीचे दिए गये प्रत्येक प्रश्न में कुछ कथन और उसके बाद कुछ निष्कर्ष दिए गये हैं। आपको दिए गये कथनों को सत्य मानना है, भले ही वे ज्ञात तथ्यों से अलग प्रतीत होते हो, सभी निष्कर्षो को पढ़िए और फिर निर्णय कीजिये कि दिए गये निष्कर्षो में से कौन-सा/कौन-से निष्कर्ष ज्ञात तथ्यों को नजरअंदाज करने पर कथनों का तार्किक रूप से अनुसरण करता है/करते हैं।
कथन:
I. कुछ कलम काले हैं।
II. कुछ कलम नीले हैं।
III. कोई काला लाल नहीं हैं।
निष्कर्ष
:
I. कोई कलम लाल नहीं हैं।
II. कुछ नीले काले हैं।
III. कुछ काले कलम हैं।
a)
केवल I
b)
केवल II
c)
केवल III
d)
केवल II और III
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Gokul Krishnan
asked
• 6 hours ago
Assertion (A):
There is good grain refinement in hot working.
Reason (R):
In hot working physical properties are generally improved.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R arc true but R is NOT the correct explanation of A
c)
A is true hut R is false
d)
A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Mjmanoj Saini
asked
• 6 hours ago
A thin cylinder contains fluid at a pressure of 500 N/m
2
, the internal diameter of the shell is 0.6 m and the tensile stress in the material is to be limited to 9000 N/m
2
. The shell must have a minimum wall thickness of nearly
a)
9 mm
b)
11 mm
c)
17 mm
d)
21 mm
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Exam Hunters
asked
• 6 hours ago
Steam enters an adiabatic turbine steadily at 400oC and 5 MPa, and leaves at 20 kPa. The highest possible percentage of mass of steam that condenses at the turbine exit and leaves the turbine as a liquid is?
Attach
Answer
to Question
Obi Lesh
asked
• 6 hours ago
If two blocks of equal mass are attached to the two ends of a light string and one of the blocks is placed over a smooth horizontal plane while the other is hung freely after passing over a smooth pulley, then the two blocks will have some motion.
a)
Agree
b)
Disagree
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Pawan Dey
asked
• 7 hours ago
A system comprising a single phase is called a
a)
closed system
b)
open system
c)
isolated system
d)
homogeneous system
e)
heterogeneous system.
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Abhishek Govil
asked
• 7 hours ago
A safety valve usually employed with stationary boilers is
a)
lever safety valve
b)
dead weight safety valve
c)
high steam and low water safety valve
d)
all of these
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Dharmendra Singh
asked
• 7 hours ago
A gas turbine works on which one of the following cycles?
a)
Brayton
b)
Rankine
c)
Stirling
d)
Otto
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Gnaneswar G
asked
• 7 hours ago
Match List I (Items in joints) with List II (Type of failure) and select the correct answer using the codes given below the Lists:
Codes A B C D
a)
4 1 3 2
b)
4 2 3 1
c)
3 1 4 2
d)
3 2 4 1
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Ankit Singh
asked
• 7 hours ago
Which of the following pattern-materials are used in Precision Casting?
1. Plaster of Paris
2. Plastics
3. Anodized Aluminium Alloy
4. Frozen Mercury
Select the correct answer using the codes given below:
a)
1 and 2
b)
2 and 4
c)
3 and 4
d)
1 and 3
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Anubhav Chauhan
asked
• 7 hours ago
Consider the following processes:
1. Gas welding
2. Thermit welding
3. Arc welding
4. Resistance welding
The correct sequence of these processes in increasing order of their welding temperatures is
a)
1, 3, 4, 2
b)
1, 2, 3, 4
c)
4, 3, 1, 2
d)
4, 1, 3, 2
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Aadarsh Vikram
asked
• 7 hours ago
A gear set has a pinion with 20 teeth and a gear with 40 teeth. The pinion runs at 30 rev/s and transmits a power of 20 kW. The teeth are on the 20c full-depth system and have a module of 5 mm. The length of the line of action is 19 mm.
Q. The center distance for the above gear set in mm is
a)
140
b)
150
c)
160
d)
170
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Shubham Saurabh
asked
• 7 hours ago
For a given value of TH (Source temperature) for a reversed Carnot cycle, the variation of TL(Sink temperature) for different values of COP is represented by which one of the following graphs ?
a)
b)
c)
d)
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Praveen Kumar
asked
• 7 hours ago
When the engines are built to withstand the same thermal and mechanical stresses
a)
η
otto
>η
dual
>η
Diesel
b)
η
otto
>η
Diesel
>η
dual
c)
η
Diesel
>η
dual
>η
otto
d)
η
Diesel
>η
otto
>η
dual
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Gokul Krishnan
asked
• 7 hours ago
Consider the following operations involved in forging a hexagonal bolt from a round bar stock, whose diameter is equal to the bolt diameter:
1. Flattening 2. Upsetting 3. Swaging 4. Cambering
Q.
The correct sequence of these operations is
a)
1, 2, 3, 4
b)
2, 3, 4, 1
c)
2, 1, 3, 4
d)
3, 2, 1, 4
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Mohd Vaseem
asked
• 8 hours ago
Newton's law of viscosity is a relationship between
a)
shear stress and the rate of angular distortion
b)
shear stress and viscosity
c)
shear stress, velocity and viscosity
d)
pressure, velocity and viscosity
e)
shear stress, pressure and rate of angular distortion.
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Udeshya Kumar Gupta
asked
• 8 hours ago
A rivet joint in a structure shown in figure has to support a load of 2KN . If the primary and secondary shear stress are 6.37 Mpa and 13.50Mpa respectively, the maximum stress developed in the rivet is Mpa?
Attach
Answer
to Question
Hardik Barot
asked
• 8 hours ago
For an engine which cannot start when loaded the type of clutch that should be used is
a)
Disc clutch
b)
Multiplate clutch
c)
Cone clutch
d)
Centrifugal clutch
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Noel Thomas
asked
• 8 hours ago
The shearing area of a key of length 'L', breadth 'b' and depth 'h' is equal to
a)
b x h
b)
Lx h
c)
Lx b
d)
Lx (h/2)
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Atul Pawar
asked
• 8 hours ago
Consider the following stress-strain diagram and match the following:
List - I
List - II
1. Hard rubber
2. Soft rubber
3. Structural steel
4. Aluminium alloy
a)
A
b)
B
c)
C
d)
D
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Deep Bakshi
asked
• 9 hours ago
The flight Mach number of an aircraft flying at an altitude where the temperature is -48°C is 0.7. The speed of the aircraft is (Take γ = 1.4, 77= 287 J/kgK)
a)
100 m/s
b)
140 m/s
c)
400 m/s
d)
250 m/s
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Naveen Naveen
asked
• 9 hours ago
1kg of air initially at a temperature of 127c expands reversibly at canstant pressure untill the valume gets tripled. If the has constant of air is 287j/kg.k what is the the magnitude of work transfer in kj?
Attach
Answer
to Question
Yelugam Ramya
asked
• 9 hours ago
Match List-1 (Materia!) with List-ll (Poisson’s Ratio)
a)
A
b)
B
c)
C
d)
D
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Naveen Naveen
asked
• 9 hours ago
1kg of air intially at a temperture of 127c expands reversible?
Attach
Answer
to Question
Ranga Nathan
asked
• 9 hours ago
The three major types of forecasts used by business organizations are
a)
strategic, tactical and operational
b)
economic, technological and demand
c)
exponential, smoothing, delphi and regression
d)
casual, time-series and seasona
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Piyush Batu
asked
• 10 hours ago
Falling drops of water become spheres due to the property of
a)
adhesion
b)
cohesion
c)
surface tension
d)
viscosity
e)
compressibility
Correct answer is option 'C'. Can you explain this answer?
Attach
Answer
to Question
Shivam Saxena
asked
• 10 hours ago
Consider the following statements:
1. The degree of freedom for lower kinematic pairs is always equal to one.
2. A ball-and-socket joint has 3 degrees of freedom and is a higher kinematic pair
3.Oldham's coupling mechanism has two prismatic pairs and two revolute pairs.
Which of the statements given above is/are correct?
[IES-2005]
a)
1, 2 and 3
b)
1 only
c)
2 and 3
d)
3 only
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Thotla Raj
asked
• 10 hours ago
If velocity of slider is 4m/s and The angular velocity of the link where the slider is sliding is 5 rad/s the coriolis acceleration is
a)
15 m/s
2
b)
20 m/s
2
c)
9 m/s
2
d)
40 m/s
2
Correct answer is option 'D'. Can you explain this answer?
Attach
Answer
to Question
Selvakumar Baskar
asked
• 10 hours ago
Which one of the following welding processes consists of minimum heat affected zone (HAZ)?
a)
Shielded Metal Arc Welding (SMA W)
b)
Laser Beam Welding (LBW)
c)
Ultrasonic Welding (USW)
d)
Metal Inert Gas Welding (MIG)
Correct answer is option 'B'. Can you explain this answer?
Attach
Answer
to Question
Amal George
asked
• 10 hours ago
For a cotter, the ratio of thickness to width is
a)
1 : 4
b)
1 : 3
c)
2 : 3
d)
1 : 2
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Sravani
asked
• 10 hours ago
Match List I with List II and select the correct answer:
a)
A
b)
B
c)
C
d)
D
Correct answer is option 'A'. Can you explain this answer?
Attach
Answer
to Question
Fetching relevant content for you
Ask a question
Recommended Tests
Recommended Content
Fundamental Concepts
Video | 14:46 min
Comparison Between Disc Brake & Drum Brake, TOM, Mechanical Engineering, GATE
Video | 03:50 min
Refrigeration - Refrigeration and Air Conditioning, GATE
Doc | 13 pages
Mechanical Properties of Engineering Materials
Video | 35:11 min
What are the Types of Constrained Motion, TOM, Mechanical Engineering, GATE
Video | 06:08 min
Related Courses
×
Share your question
Category
Facebook
Twitter
Google
WhatsApp
Email
Copy Link
×
CONTINUE
Resend OTP
Change Number