If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be exactly in the middle of the five words?

If in each of the given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will the same alphabet appear twice?

3, 5, 5, 19, 7, 41, 9, ?

If the positions of the first and the third alphabets of each of the words are interchanged, which of the following would form meaningful words with the new arrangement?

If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be fourth from the left?

If in each of given words, each of the consonants is changed to previous letter and each vowel is changed to next letter in the English alphabetical series, in how many words thus formed will at least one vowel appear?

How many letters are there in the English alphabetical series between the third letter of the word which is third from the right and the first letter of the word which is first from the left of the given word?

If second alphabet in each of the words is changed to next alphabet in the English alphabetical order, how many words having no vowels will be formed?

If all the letters in each of the words are arranged alphabetically (within the word), how many words will remain unchanged?

According to the English alphabetical series how many letters are there between the first letter of the third word and the first letter of the fifth word?

A fin will be more effective when Bio number is

A tank of length, breadth and height in the ratio of 2:1:2 is full of water. The ratio of hydrostatic force at the bottom to that at any larger vertical surface is

Which of the following fluids exhibit a certain shear stress at zero shear strain rate followed by a straight line relationship between shear stress and shear strain rate?

What is the specific gravity of a marble stone, which weighs 400N in air, and 200N in water? (g=10m/s²)

What is the intensity of pressure in the following SI units, when specific gravity of mercury is 13.6 and the intensity of pressure is 400KPa ?

Consider the following statements:
1.If a small upward displacement is given to a floating body, it results in the reduction of the buoyant force acting on the body
2.A slight horizontal displacement does not change either the magnitude or the location of the buoyant force 
Which of the above statements is/are correct? 

State whether following flow field is physically possible? 

In a differential manometer, a head of 0.5 m of fluid A in limb 1 is found to balance a head of 0.3 m of fluid B in limb 2. The atmospheric pressure is 760 mm of mercury. The ratio of specific gravities of A to B is

On which of the following just in time manufacturing philosophy emphasizes ?

In a stream line steady flow, two points A and B on a stream line are 1m apart and the flow velocity varies uniformly from 2m/s to 5m/s. What is the acceleration of fluid at B?

The stream function is given by Ψ = 3xy, then the velocity at the point (2,3) is

The boundary layer thickness at a given distance from the leading edge of a flat plate is

In a laminar flow through a circular pipe, the discharge varies

A fluid is flowing over a flat plate. At distance of 8 cm from the leading edge, the Reynolds number is found to be 25600. The thickness of the boundary layer at this point is

Air is flowing over a flat plate with a free stream velocity of 24 m/s, and its kinematic viscosity is 72 ×10^-6m²/s. If at a particular point, the Reynolds number is 30000, its location from the leading edge is

In a refrigerator, the evaporator and condenser coil temperatures are –33°C and 27°C, respectively. Assuming that the maximum COP is realized, the required power input for a refrigerating effect of 4 kW is
 

In a hydraulic coupling

Consider the following statements:
1.The wheel can be operated freely in air
2.Pressure at the exit of the nozzle is atmospheric
3.Pressure does not vary along the moving vanes
4.Change the direction of momentum imparts thrust over moving vanes Which of the following statements are applied to impulse turbine?

A water jet 0.0015m²in area issues from a nozzle with 15 m/s velocity. It is made to impinge perpendicular on to a plate that moves away from the jet with a velocity of 5 m/s. The force on the plate due to this impact is

Consider the following statements with regard to hydraulic turbines:
1.Kaplan turbines are most efficient at part load operations.
2.If n is the number of jets in a Pelton turbine, then the specific speed is proportional to n².
3.The flow ratio of Francis turbines are in the range of 0.1 – 0.3. 
Which of the above statements is/are correct? 

Which of the following is a Vector quantity ?

Bernoulli’s equation is applicable between any two points located in

Water flows through a smooth circular pipe of diameter D and length L because of a pressure difference ΔP across the length. The volume flow rate is Q and the flow is turbulent with Reynolds number 10⁵. If the pressure difference is increased to 4ΔP the volume flow rate will be

For laminar flow through a round pipe, the shear stress

Percentage clongation during tensile test is indicative of

Which of the above statements is not correct in the context of laminar flow through a pipeline?

Laminar flow between closely spaced parallel plates is governed by the consideration of which one of the following pair of forces?

Formation and collapse of vapour bubbles are believed to be the root cause for cavitation in hydraulic turbines. Most favorable condition for the formation of bubbles is set in the turbine at

For fully developed laminar flow through a circular pipe with Reynolds number Rethe friction factor is

The ratio of power outlet of the pump to the power input to the pump is known as

A pump is defined as a device which converts

The specific speed of a pump is defined as the speed of the unit of such a size that is

Negative slip occurs  in reciprocating pumps, when delivery pipe is

The pressure inside a soap bubble of 50 mm diameter is 25 N/m² above the atmospheric pressure. The surface tension in soap film would be

A Newtonian fluid is one which

Unlike the viscosity of fluids, the viscosity of gases increases with increasing temperature. This is due to

Manometer is a device used for measuring

When a dolphin glides through air, it experiences an external pressure of 0.75 m of mercury. The absolute pressure on dolphin when it is 5m below the free surface of the water is

A spherical waterdrop of 1 mm in diameter splits up in air into 64 smaller drops of equal size. The surface tension coefficient of water in air is 0.073 N/m. The work required in splitting up the drop is

Consider the following statements pertaining to stability of floating bodies:
1. A floating body will be stable when the centre of gravity is above the centre of buoyancy.
2. The position of metacentres corresponding to different axes of rotation are generally different for the same floating object.
3. For cargo ships, the metacentric height varies with loading.
Which of the above statements are correct?

Water is coming out from a tap and falls vertically downwards. At the tap opening, the stream diameter is 20 mm with uniform velocity of 2 m/s. Assuming steady inviscid flow, constant pressure atmosphere everywhere, and neglecting curvature and surface tension effects, the diameter of the stream 0.5 m below the tap opening is nearly

Consider the following statements:
1. At low Reynolds numbers of any flow, viscous forces dominate over inertial forces.
2. Transition from laminar to turbulent flow occurs over a range of Reynolds numbers depending on the surface presented to the flow.
Which of the above statements is/are correct?

In a steady laminar flow of a given discharge through a circular pipe of diameter D, the head loss is proportional to

The centre-line velocity in a pipe flow is 2m/s. What is the average flow velocity in the pipe if the Reynolds number of the flow is 800?

During a constant pressure expansion of a gas, 33.3% heat is converted into work while the temperature rises by 20 K. The specific heat of the gas at constant pressure as a proportion of work, W is

A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg K to 0.4 kJ/kg K. At the same time, the entropy of the surroundings decreases from 80 kJ/kg K to 75 kJ/kg K. The process is

A reversible heat engine rejects 80% of the heat supplied during a cycle of operation. If the engine is reversed and operates as a refrigerator, then its coefficient of performance shall be

For the same efficiency of the Brayton cycle and the Carnot cycle working between temperature limits of T_max and T_min, the power contribution of the Brayton cycle will be

Consider the following motions :
1. Piston reciprocating inside an engine cylinder
2. Motion of a shaft between foot-step bearings
Which of the above can rightly be considered as successfully constrained motion?

A rotor weighing 2 kN is supported on bearings A and B which are 1 m apart. The centre of mass of the rotor is at a distance 0.4 m from bearing A. It is observed that there is an unbalanced couple of magnitude 300 N-m which leaves the shaft balanced statically.The dynamic reactions at the supports will be

A cam is a mechanical member used to impart a desired motion to a follower by direct contact. Which one of the under-listed follower motion types will produce the least jerk to the system?

In a circular are cam with a roller follower, acceleration of the follower depends on
1. cam speed and location of centre of circular arc
2. roller diameter and radius of circular arc
Which of the above is/are correct?

A manufacturing company is selling a product for 15 per unit with variable cost of  10 per unit. The fixed cost of the asset is 50,000. How many units should be produced to breakeven?

Hot wire anemometer is used to measure_______________?

A gear of 28 cm pitch circle diameter has 40 teeth. The circular pitch will nearly be

Consider the following statements regarding gear tooth designing for gear drive :
1. Tooth profiles not designed as per ‘law of gearing’ will cause vibration and impact problems even at low speed.
2. As the gears go through their mesh, the pitch point must remain stationary on the line of centres.
3. In a correctly designed tooth profile, the line of action of successive instantaneous points of contact will pass through the stationary pitch point.
Which of the above statements are correct?

The flywheel of a steam engine has a radius of gyration of 1 m and mass 2000 kg. The starting torque of the engine is 2000 N-m. The kinetic energy of the flywheel after 10 seconds from start is

Consider two shafts connected with two gears as per the following options :
1. One on each shaft.
2. Through an intermediate gear mounted on an intermediate shaft, and every shaft having one gear only.
3. Through an intermediate gear mounted on an intermediate shaft having two gears, whereas the other shafts have one gear each
Which of the above represent(s) a simple gear train?

Which of the following is the unit of kinematic viscosity _________________?

Consider the following processes:
1. Extension of a spring
2. Plastic deformation of a material
3. Magnetization of a material exhibiting hysteresis
Which of the above process are irreversible?

Which of the following statements are correct for a throttling process?
1. It is an adiabatic steady flow process
2. The enthalpy before and after throttling is same
3. In the processes, due to fall in pressure, the fluid velocity at outlet is always more than inlet velocity

A Reversed Carnot Engine removes 50 kW from a heat sink. The temperature of the heat sink is 250 K and the temperature of the heat reservoir is 300 K. The power required of the engine is

A heat engine receives heat at the rate of 2500 kJ/min and gives an output of 12.4 kW. Its thermal efficiency is, nearly

One reversible heat engine operates between 1000 K and T₂ K and another reversible heat engine operates between T₂K and 400 K. If both the engines have the same heat input and output, then the temperature T₂ must be equal to

Consider the following statements for isothermal process:
1. Change in internal energy is zero
2. Heat transfer is zero
Which of the above statements is/are correct?

A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg K to 0.4 kJ/kg K. At the same time, the entropy of the surroundings decreases from 80 kJ/K to 75 kJ/K. The process is:

Which one of the following statements is correct during adiabatic charging of an ideal gas into an empty cylinder from a supply main?

Consider the following systems :
1. An electric heater
2. A gas turbine
3. A reciprocating compressor
The steady flow energy equation can be applied to which of the above systems?

If a submerged body displaced from its equilibrium position, returns to its original position, it is called __________.

In a flow measurement, a venturi meter is preferred over an orifice plate because _____.

Pitot tube measures ______.

Which of the following is not a property of an ideal fluid ?

Nozzle used in steam turbines convert ________.

Which of the following assumptions is the most relevant in air-standard cycle analysis ?

The modern Francis turbine is a ___________flow turbine .

Variation of stress with strain rate for a Newtonian fluid is ______ .

Which of the following is NOT a part of refrigeration systems ?

Which of the following is NOT an intensive property ?

Which of the following does NOT represent a unit of viscosity ?

__________ in the fuel is oxidised during knocking .

_________ is defined as the ability of a material to resist deformation under action of an external load .

Draught is produced in locomotive boilers by which of the following components ?

For a steady flow, the value of all fluid properties at any fixed point _________ .

For a floating body, if the metacentre is below the centre of gravity, then the body is said to be __________ equilibrium .

________ is useful for measuring flow of a conducting fluid .

A two- stroke engine consists of ________ port (s)

Air Cooling is mostly preferred for _________ .

_______ valves are provided in reciprocating compressors .

Benson boiler have ______ water drum (s)

_________ is used for pumping water into a boilers .

The function of a carburetor in internal combustion engines is :

The device which transfers energy from the ______ to _____ the is known as hydraulic turbine .

The flash chamber in the single stage VCR cycle serves to ________ .

Define thermodynamics .

Which of the following statements is correct about a Benson boiler ?

Within a refrigeration system, the expansion valve is incorporated between the ________ .

The reversed ______ cycle employed for passenger aircraft systems . 

Fusible plug in a steam boiler is placed ______ .

Aqua ammonia solution used in a vapour absorption refrigeration system is a solution of ammonia in ________ .

Coated electrodes are used in ______ .

Where is air cycle refrigeration commonly used ?

________, is not a water tube boiler .

Stoke is another unit of -

For a refrigerating machine, capacity is expressed as ______ .

The value of quality or dryness fraction of a substance in saturated liquid-vapor mixture is ________ .

Uniform flow is the type of flow where in velocity at any given time ________- with respect to space .

______ falls under the category of a water tube boiler .

Chaplets are used in ________ .

Which of the following is NOT a unit of pressure ?

What was the first refrigerant used in continuous refrigeration system ?

For a 2 m deep swimming pool, pressure difference between the top and the bottom of the pool is ________ kPa .

Pressure measurement is done by ____. by measuring heat loss from a heated wire .

In the Rankine cycle, the fluid which enters the boiler is :

Percentage elongating measured during tensile testing indicates _____ .

For a given centrifugal pump, discharge varies _______ with speed .

Foaming is a phenomenon that occurs in the boiler feed water due to _____ .

Compounding of a steam turbine is done to ______ .

Any change in entropy could be achieved by changing______ .

Smoke emitting from a lighted cigarette represents ________ .

The splash system is NOT used to lubricate _______ .

A dead weight tester is used widely for ______ .

_______ CANNOT be classified as inversion (s) of a single-slider crank mechanism .

Which of the following is NOT a part of Rankine cycle ?

A power plant that uses a gas turbine followed by a steam turbine for necessary power generation is known as __________ cycle power plant .

In the context of properties of steel, which of the following statement is highly relevant ?

Those pumps employed for mud related work have ______ type of impeller .

If the oil viscosity increased, then the wear loss _________ .

Impact load is an example of :

Internal energy associated with kinetic energy of molecules is ______ .

A capillary tube is employed in a refrigeration cycle to _______ .

The Babcock-Wilcox boiler is classified as a water tube boiler because :

Otto cycle of a car engine consists of :

When hot air exhausting from the turbine is used to heat up the compressor exit flow, it is knows as _______ .

If the specific gravity of oil is 0.7, then its density in kg/m³ will be _______ .

viscous forces are NOT available in _______ .

Which of the following is the most widely used fuel in boilers ?

If the relationship between shear stress of a fluid is NOT linear to the velocity gradient, then the fluid is :

In a Pelton wheel, jet ratio values are ________ .