Mechanical Engineering Mcqs Online With Answers

Mechanical engineering is the discipline that applies engineering, physics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering disciplines. Mechanical Engineering is the  branch of engineering concerned primarily with the industrial application of mechanics and with the production of tools, machinery, and their products.The mechanical engineering field requires an understanding of core areas including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity. In addition to these core principles, mechanical engineers use tools such as computer-aided design , and product life cycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices, weapons, and others. It is the branch of engineering that involves the design, production, and operation of machinery. Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.

Here we have large collection of Mechanical Engineering Mcqs for all Students and jobs test preparation purpose. These Mechanical Engineering Mcqs will be updated on daily basis and added more multiple choice question about Mechanical Engineering frequently.You can prepare your Mechanical Engineering Subject for different classes like 9th class, 10th class ,11th class 12th class exams, Entry Test like MCAT NTS ,OTS ,PTS ,BTS, GTS, Jobs Test,Recruitment Test like PPSC CSS FPSC SPSC KPPSC and interviews here.

Mechanical Engineering Mcqs Online With  Answers for NTS PPSC Entry Test Classes

Mechanical Engineering

Mechanical Engineering Mcqs with Answers Solved


Which of the following operations is/are performed on a lathe machine?

Which of the following can be considered as more compact efficient heat exchanger?

The buoyancy forces which give rise to the natural convection are called as?

Which of the following methods can be used to reduce excitation level at the source?

The maximum tangential stress σt = (σx sin 2θ)/2 is maximum if, θ is equal to?

Line joining Syt (yield strength of the material) on mean stress axis and Se (endurance limit of the component) on stress amplitude axis is called as?

At the maximum inversion temperature in the graph of isenthalpic or joule-kelvin expansion of a gas, the value of Joule-Kelvin coefficient is?

Which of the following is the reference pressure often referred to as threshold of hearing at 1000 Hz?

An ideal fluid is?

Mercury is generally used in barometer because?

The process in which no heat transfer takes place through boundaries is called as?

The sum of components of shear forces in the direction of flow of fluid is called as?

Which of the following is not a part of carriage of the centre lathe?

Newton’s law of viscosity relates?

The rate at which the solar energy reaching the earth’s atmosphere is called as?

1 atm pressure is equivalent to?

What is the pH value of water permissible for boiler?

To predict failure in design components which failure criteria is not assumed, when mean stress and stress amplitude are nonzero?

The noise level generated by domestic air conditioner ranges between?

What is the correct formula for the total emissive power of the gray body (Eg)?

Which of the following processes is used for surface finishing?

Identify the incorrect statement. Apparent shear forces?

Mechanical working processes are performed on metals?

Vaneless diffusers are suitable for?

Absolute pressure is measured as?

The device which is used to remove workpiece from close-fitting locators, after the workpiece has been removed is called as?

Solid length for helical compression springs having square and ground ends is given as?

The process of filling the liquid into the suction pipe and pump casing upto the level of delivery valve is called as?

he materials such as lead and barium, which are added with polymers to minimize the effect of heat, sunlight and ozone are called as?

Which type of vibrations are also known as transient vibrations?

The PLC is used in?

Which of the following materials is/are used to make an angle gauge block?

Beam engine mechanism is an example of?

The reheat cycle allows steam power plant?

A mercury water manometer indicates a gauge difference of 400 mm. The difference in pressure, measured in metres of water, is?

Which of the following vibrometers have frequency ratio (ω/ωn) << 1?

Froude number is useful in calculations for?

Four piezometer openings in the same cross-section of a cast iron pipe indicate the following pressure for simultaneous reading: 43, 42.6, 42.4 37 mm Hg. What value should be taken for the pressure?

What is the function of cone pulley drive in lathe machines?

Secondary force in reciprocating engine mechanism is caused due to?

Ratio of two spindle speeds is constant in _________ progression.

Assume that a reversible heat engine is operating between a source at T1 and a sink at T2. If T2 decreases, the efficiency of the heat engine?

How is the arrangement of pistons in piston pumps?

When the angle between surface tension with the liquid (θ) is greater than 90o, the liquid becomes?

The resultant hydrostatic force acts through a point known as?

When a venturimeter is used in an inclined position, it will show?

In which circuits, relay of low voltage and low current is used to make open or close contact?

What is the entropy change when the system is at stable equilibrium state?

Magnitude of eddy viscosity for laminar flow is?

Head loss hf due to friction is given by?

he process of creating mechanisms and shapes of mechanical elements for a machine to get the desired output for a given input is called as?

In turbofan engine, the bypass ratio is the ratio of?

What is the ratio of the buoyancy force to the viscous force acting on a fluid called?

The process of lowering the temperature of a liquid below its freezing point is known as?

What is runaway speed of the runner of Pelton wheel?

Adding an additive to water glycol fluids improves?

The ratio of actual whirl velocity to the ideal whirl velocity in the centrifugal compressor is called as?

Waterfall method is observed in?

A closed feedwater heater system?

A liquid compressed in a cylinder has a volume of 1 litre at 1 MN/m2 and a volume of 995 cu-cm at 2 MN / m2. The bulk modulus of elasticity would be?

The horizontal line in psychrometric chart joining the change of state of air represents?

Which of the following vibrations are classified according to magnitude of actuating force?

At the state of perfect order (W = 1) of pure crystalline substance, how is the zero entropy defined?

The density of air at 10?C and 1 Mpa abs in SI units is?

The sum of partial volumes of all gases in a mixture is equal to?

In a steady, ideal flow of an incompressible fluid, total energy at any point of the fluid is always constant. This theorem is known as?

What is the correct formula for absolute pressure?

Density in terms of viscosity is?

Which of the following is an example of constant mass manufacturing process?

Which fixtures are used for machining parts which must have machined details evenly spaced?

What is the ratio of amplitude of response to that of the input called?

What is quality assurance?

Which of the following is used as an accessory in hydraulic power unit?

Which component of fluid velocity is responsible for transmission of power through rotodynamic machine?

The surface of the single point cutting tool on which the chips formed in cutting operation slide is called as?

Which method is used for stability analysis?

Which of the following systems generate more energy when used in industrial applications?

Jigs and fixtures are?

Which of the following is tested for parallelism between trajectory and a plane?

If pressure ratio in Brayton cycle increases?

Which of the following construction equipments have highest noise level?

Torsional pendulum is used to determine mass moment of inertia of?

Angle of swash plate in axial piston pump is adjusted by?

What is the ratio of maximum velocity to average velocity, when the fluid is passing through two parallel plates and flow is laminar?

Which of the following is a property of bulk load?

Which of the following phases of designing of heat exchangers does designer consider corrosive nature of the fluid in?

According to Taylor’s principle which type of gauge checks both size and geometric features?

The units of dynamic viscosity are?

Why are shear connectors used?

The substance which is homogeneous and invariable in chemical composition throughout its mass is called as?

What is the effect of increasing flow coefficient (Φ) in an axial flow compressor on blade loading coefficient (Ψ)?

Determine logarithmic decrement, if the amplitude of a vibrating body reduces to 1/6th in two cycles.

The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at the point, is called as?

The shear stress velocity gradient relation of the Newtonian fluids is?

A rotameter is a device used to measure?

A hydro-electric site has a head of 100 m and an average discharge of 10m3/s. Assume 92% efficiency, for a greater speed of 6000 rpm, the specific speed of turbine would be?

What is the product of sectional modulus and allowable bending stress called as?

In natural convection, the Nusselt number (Nu) depends on?

What is the ratio of the actual work absorbed by an axial flow compressor to the theoretical work called?

Which flat belt drive system has two pulleys mounted on driven shaft and one pulley on driving shaft?

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