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Direction: Study the following piechart and tables carefully and answer the questions given below.
Total Number of email received by the organization = 90000
Ratio of Read emails to Unread emails received by the organization
What is the ratio of the number of emails read in January to those unread in the month of April in the organization?
Direction: Two sentences with one blank in each, followed by five alternatives, are given. Choose that option as the answer which can fill both the blanks of both the sentences.
I. Most of our employees get _____ abroad at some stage
II. The aircraft and its crew were ______ missing.
In the following question, out of the given four alternatives, select the one which is opposite in the meaning of the given word.
Scurrilous
Statements:
All pillows are beds.
No fruit is pillow.
Some foods are fruits.
Conclusions:
I. At least some foods are pillows.
II. Some beds are definitely fruits.
Direction: Study the following information carefully and answer the questions given below:
P, Q, R, S, T, U, V and F are sitting around a circle facing the centre. U is third to the right of Q, who is third to the right of F. P is third to the left of F. R is fourth to the left of P. T is third to the right of S. S is not a neighbour of P.
Four of the following five are similar in a certain way based on their positions in the seating arrangement and so form agroup. Which of the following does not belong to that group?
Following bar graphs shows time taken by different pipes to fill that particular percentage of tank which is described in tabular data. For Ex Pipe 1 fills the 10 % of tank in 6 mins.
Now, read the following data and answer the question carefully:
A Tank has three pipes; two of them are used to fil the tank while another one used to empty the tank namely: pipe 3, pipe 5 to fill the tank and a third pipe for making the tank empty. When all three pipes are open, 7/18^{th} part of the tank is filled in 1 hours. How much time will the third pipe take to empty the completely filled tank 10 times the bigger than the previous one.
Directions: Rearrange the following six sentences (A), (B), (C), (D), (E) and (F) in the proper sequence to form a meaningful paragraph: then answer the questions given below them.
A). Indian Government remain concerned about potential spillover effects from the unconventional monetary policies of the advanced economies, which could cause disruptive volatility of exchange rates, asset prices and capital flows.
B). The challenges are related to high public debt and unemployment, poverty and inequality, lower investment and trade, negative real interest rates along with signs of prolonged low inflation in advanced economies.
C). In this context, emerging markets and developing countries (EMDCs) continue to be major drivers of global growth.
D). The global recovery continues, although growth remains fragile, with considerable divergences across countries and regions.
E). It is important to strengthen the framework of international financial cooperation, including through instruments such as swaplines, to mitigate the negative impacts of monetary policy divergence in reserve currency issuing countries.
F). Structural reforms, domestic adjustment and promotion of innovation are important for sustainable growth and provide a strong and sustainable contribution to the world economy.
Which of the following will be the Second sentence?
In a school, 12th class consists of 30% male students of which 30% male students failed in the class. Total 82% students passed in 12th examination out of 900 students. Calculate the total number of female passed students?
Direction: In the following number series, only one number is wrong. Find out the wrong number.
17 25 34 98 121 339
There are 3 red balls and 5 green balls in a bag. If two balls are picked at random from the bag then find the probability of getting a red ball?
In the parallelplate configuration shown, steadyflow of an incompressible Newtonian fluid is established by moving the top plate with a constant speed, U_{0} = 1m/s. If the force required on the top plate to support this motion is 0.75 N per unit area (in m2 ) of the plate then the viscosity of the fluid between the plates is __________ Ns/m2
The figure shows reducing area conduit carrying water. The pressure p and velocity V are uniform across sections 1 and The density of water is 1000 kg/m^{3} . If the total loss of head due to friction is just equal to the loss of potential head between the inlet and the outlet, then V2 in m/s will be _____
The stressstrain curve of an ideal elastic strain hardening material will be as
The strain hardening exponent ‘n’ of stainless steel relates to
N →column1)
P) Zero
Q) between zero and one
R) One
Column2
1) Plastic deformation
2) elastic solid
3) Perfect moldable solid
Mohr’s circle for the state of stress defined by MPa. is a circle with radius of
Water flows through a tube of diameter 25mm at an average velocity 1 m/sec. The properties of water ρ = 1000 kg/m^{3}, μ = 6x 10^{4} Ns/m^{2} , K= 0.625 W/mK, P_{r}= 4, Given Dittus – Boelter equation, N_{u} =0.023R_{e}^{0.8} P_{r}^{n} and constant heat flux N_{u} = 3.66. What is Nusset number when fluid is cooling?
A machine tool company decides to make four subassemblies through three contractors differing in efficiency. Given below are the estimates of the time in hours) matrix. The minimum time in seconds is?
The average service rate at a Service Centre is 8 customer/hr, which varies exponentially. Customers arrive at random order with an average of 6 customer/hr. The probability of at least 3 customers in the system is____
In an Electrochemical machining process an iron( atomic weight=56 gm and valency=2) is used having cross section of 0.5x0.5 cm2. A current of 1000 A is passed through the electrolytic solution and the density of iron is given as 7.86gm/cm3. Find the feed rate of the electrode in cm/sec.
A mould has downsprue whose length is 15cm and crosssection area at the base of downsprue is 1.5 cm^{2}. The downsprue feeds a horizontal runner leading into mould cavity of 1200 cm^{2}. The time required to fill the mould cavity will be
Match the following:
a) Drop forging imaterial is only upset
b) Machine forging iirepeated hammer blows
c) Press forging iiicarried out manually
d) Upset forging ivsqueezing action
e) Smith forging vmetal gripped & pressure applied at heated end
The maximum reduction (upto 2 decimal points) in crosssectional area per pass (R) of a cold wire drawing process is R = 1  e ^{(n+1) }
where n represents the strain hardening coefficient. For the case of a perfectly plastic material, R is
In spot welding of two stainless steel sheets, each of 5mm thickness, welding current 15000A is applied for 0.4sec, the heat dissipated to the base metal is 22000J . Assuming that the heat required for melting 2mm^{3} volume steel is 30J and contact resistance between sheets is 0.0004Ω. The volume (in mm^{3}) of weld nugget is__________.
Which of the following is false about comparator :
Which types of stress strain relationship best describes the behaviour of brittle materials as ceramics and thermosetting plastics?
A paddle wheel is rotated inside a sealed container containing 20kg of air. If the applied torque on paddle wheel is 80Nm and is rotated at 120rpm for 3 minutes. The temperature rise of air is ________ ℃
According to second law of thermodynamics, the entropy change of the system for any process can be
The Mollier diagram of a pure substance is a
Match List1 (Refrigerant) with List2 (Uses) and select the correct answer using the code given below the List
In a Bell Coleman cycle, air enters the compressor at a pressure of 2.5 bar at a temperature of 10^{0}C. It is then compressed to a pressure of 6.25 bar and then cooled in a cooler to a temperature of 25^{0}C in the cooler before being expanded in the expansion cylinder upto a pressure of 2.5 bar. The COP will be ______ .
Find the minimum number of stages required when air enters at 1 bar and 27^{0}C and delivers at 260 bar. The maximum temperature at the outlet of compressor is limited to 327^{0}C . Take the perfect intercooling in between stages and γ = 1.3.
The free body diagram of member AB is :
Consider the function f = 54x and refer to the following options.
A small boat is floating in a small pool as shown in the figure, initially the valve is closed, find the time taken (in seconds) by water to spill out of the pool as soon as the valve is opened ?
A tank contains water up to a height of 1m and oil of specific gravity 0.9 is filled on the top of water up to 1 m height as shown in figure). Calculate the net force on the gate. (in kN)
A lawn sprinkler has 0.6 cm diameter nozzle at the end of the rotating arm and discharges water at the rate of 10m/sec velocity. Determine the torque required to hold the rotating arm stationary
Calculate the mean bucket speed(m/s) of a Pelton wheel working under a head of 52m and producing 320kW. The diameter of nozzle is 178mm and coefficient of velocity is 0.98. The jet is deflected by 165 °.
A rigid bar ABC is supported by three rods of same material and cross section, outer rods are of copper and inner rod is of steel →as shown in figure). Calculate the forces in the rod due to an applied load 400kN, If the ABC remain horizontal after the load has been applied →neglect wt. of rods)
The circular shaft of constant cross section carries four pulleys and belts which are vertical. Calculate and Un Known tension on the belt as shown in figure.
Find the vertical reaction at the point A as shown in figure.
The inlet temperature of hot water is 800K and outlet temperature is 400 K and the inlet temperature of cold water is 200 K, both are flowing at some mass flow rate. Taking counter flow heat exchanger the NTU and LMTD respectively are
Two products A & B are manufactured by two machines. Capacity of machines are limited to 18 hours and 40 hours per week. The requirement for product A & B on each machinery from the table
The profit from each unit of A & B is 30 Rs and 20 Rs per unit respectively. The optimum profit in Rs is?
Annual demand of a product A is 4000 units. Cost of order is Rupees 900 per order. Handling charge per year is 10% of the unit price. Item can be purchased in lot as shown below.
The feasible EOQ should be
Job A, B, C, D are done on two machines. The percentage utilization of machine 2 is?
There is a rotating bar made up of steel (S_{ut} = 650 MPA. which is subjected to a completely reversed bending stress. The corrected endurance limit of the bar is 300 MPa. The fatigue strength of the bar for a life of 1,00,000 cycles will be _____ MPa
Consider a single plate clutch, consisting of only one pair of connecting surfaces. It develops a maximum torque of 150 Nm. The permissible intensity of pressure is 400 kPa and the coefficient of friction is 0.3. Assume uniform wear theory and the ratio of inner to outer diameters of the friction lining is 0.577. The inner and outer radius of the friction lining will be:
There is a riveted joint which consist of four identical rivets. It is subjected to an eccentric force of 50 kN as shown in figure. If the permissible shear stress of rivet is 60 MPa, then the minimum diameter of rivets will be _____ mm.
The length L key required to transmit 500 Nm torque for 60mm diameter shaft. The key has a cross section of 20x10mm (Syt=Syc=240 MPa, FOS=4) is?
In orthogonal turning of low carbon steel pipe, with shear strength of 300MPa, Following condition are taken.
Axial feed = 0.25 mm/rev
Radial depth of cut = 4mm
Chip thickness = 0.5mm
Cutting velocity = 150 m/min
Orthogonal rake angle 8^{0}
The shear force and MRR respectively are
There is a vertical engine, having piston at the top and crank at the bottom, running at 2400 rpm. The length of crank and connectivity rod is 50 mm and 300 mm respectively. The diameter of the pistons is 100 mm and the mass of the reciprocating parts is 1.5 kg. The crank has turned 30^{0} from the top dead centre during the expansion stoke and the gas pressure is 600 kN/m^{2}. The net force on the piston is _____ N.
For single degree of freedom, condition for getting peak (maxima) in "magnification factor" Vs "ω / ωn" curveThe damping factor should be less than
Air enters an insulated diffuser operating at steady state with a pressure of 0.65 bar, temperature of 67^{0}C and a velocity of 300 m/s. The inlet area is 0.5 m^{2}. At the exit, the pressure is 1 bar and the area is 0.6 m^{2}. Potential energy changes can be neglected. Assume ideal gas behavior for air. The mass flow rate and temperature of the air at exit is
There are two blocks connected by a light string placed on the inclined parts of a triangular structure as shown in the figure. The coefficients of static friction is 0.3 at each of the surfaces. The minimum value of ‘M’ for which the system remains at rest is ___ kg.
Which one of the following is an eigen vector of the matrix:
is a Partial differential equation whose solution is given by
The value of K is
The Laurent series for f(z) = that is valid in the region z > 10 is
In a batch of three students marks obtained in a certain test are 50, 60 and 70. The standard deviation of the marks obtained in test is
The surface integral of N ds over the sphere given by x^{2} + y^{2} + z^{2} = 4
Water flows over a flat plate at a free stream velocity of 0.15m/s. There is no pressure gradient and laminar boundary layer is 6mm thick. Assume velocity profile as for the flow conditions stated above, calculate the skin friction coefficient.
A light bulb sphere shaped of diameter 80 mm is hanged inside a brick room of cube shaped of side as 0.4 m. The light bulb is at a temperature of 327 ^{0}C and the brick is at 27^{0}C. Take emissivity (Ԑ) of light bulb and cube brick as 1 and 0.8 respectively, Determine the rate of heat loss (in kW) by radiation _____________ (upto two decimal).
In a singlecylinder reciprocating engine, the mass of reciprocating parts is 55 kg and the mass of revolving parts is 30 kg. The speed of the engine is 200 rpm and the stroke length is 300 mm. If 65 % of the reciprocating parts and all the revolving parts are to be balanced then the required balance mass at a radius of 270 mm is ___ kg.
Find the amount of work supplied by the engine (in kW) if fuel of Calorific Value 45 MJ burns at a rate of 3kg/min in an Air Standard Otto cycle of compression ratio 7.
A figure is shown below. The view factor F_{12} is
27 docs228 tests

27 docs228 tests
