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


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

What are the dimensions of force?

Which of the following protects penstock due to sudden variation of flow or velocity of water?

Friction factor for laminar flow is given by?

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

A pilot tube is used for the measurement of?

Which energy is used to transmit power in hydrostatic system?

Which type of monitoring system uses stroboscope to measure speed of the machine?

According to Joule’s law, the internal energy of a perfect gas is the function of absolute?

When is the condensate flow almost always laminar?

What is the entropy of the system at equilibrium state?

Which of the following instruments is used to measure base pitch of a gear in base tangent method?

Which acceleration has a nonzero value in uniform flow?

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?

The feedwater heater in which the extracted steam and feedwater are allowed to mix and both leave the heater at the same temperature, is called as?

The process of bevelling sharp ends of a workpiece is called as?

Determine velocity of sound in air at 50o.

If a relief valve has reliability of 0.989, how many failures are expected in testing 1000 such relief valves?

Which of the following is a property of bulk load?

When the thickness of an insulation is greater than the critical thickness of insulation, then the heat transfer rate of insulated pipe?

The volute pumps and vortex volute pumps are __________ pumps with _________ shaft.

What is the critical thickness of insulation for hollow cylinder?

What is an ideal fluid?

Discharge capacity of the reciprocating pump is __________ that of the centrifugal pump.

1 N/m2 pressure is equivalent to?

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

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

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

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

Which pump is more suitable for an application where very high pressure is required to be developed at moderate discharge?

According to Archimede’s principle, if a body is immersed partially or fully in a fluid then the buoyancy force is _______ the weight of fluid displaced by the body.

Which among the following engines is NOT the type of aircraft gas turbine which works on jet propulsion cycle?

If viscosity of fluid is more, the thickness of boundary layer is?

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

The normal stress is the same in all directions at a point in fluid?

The foundation of the centre lathe is called as?

A simple pitot tube is used to measure?

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

The amount of heat transferred to convert unit mass of solid to vapour or vice versa is called as?

Which property of the fluid offers resistance to deformation under the action of shear force?

The critical depth on a channel is given by?

Which type of key consists of two square tapered keys placed 90o apart?

Select the statement which is correct?

The compressor in the vapour compression system is replaced by?

Strain energy stored in a uniform bar is given as?

An object having 20 kg mass weighs 19.60 kg on a spring type balance. The value of ‘g’ in m/sec2 for the place is?

Which design consideration deals with appearance of the product?

Which cycle is more suitable for the reciprocating engines?

An ideal fluid is?

Beam engine mechanism is an example of?

Micro-controllers are ________________ than the PLCs.

The radiation pyrometers work on the principle of?

Which of the following factors increases hardenability of a metal?

The ratio of actual mass flow rate (ṁa) to ideal mass flow rate (ṁi) is called as?

Square root of the ratio of inertia force to elastic force is called as?

The layer above the laminar sublayer with some turbulence and still having importance of viscous action is called as?

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

The gates of aerofoil section in between the outer and inner ring of guide wheel are called as?

The function of _________ is to convert high kinetic energy of gases into pressure energy.

Which of the following is α – β brass?

Which of the following components are inspected by a Tool maker’s microscope?

What is the purpose of using a gear box?

If a barometer carries wter instead of mercury, the height of column for a pressure equivalent to 75 cm of mercury will be?

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

In which power transmitting drive polygon effect is observed?

Which of the following is/are example/s of direct contact type heat exchanger?

The resonant frequency of a mass-spring system depends upon?

What does the boring mean?

Which type of earplugs contain silicon rubber and a fixing agent?

Total amount of energy in the universe is?

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

The horizontal component of force on a curved surface is equal to the?

The depth of oil having specific gravity 0.6 to produce a pressure of 3.6 kg/cm2 will be?

Which body transmits force with negligible deformation?

An isobaric process, has constant?

1 mm Hg pressure is equivalent to?

Deformation per unit length is called as?

What is the pH value of water permissible for boiler?

The noise level generated by domestic air conditioner ranges between?

What is the advantage of multiple piston pump?

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

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

Absolute pressure is measured as?

What is the Wahl’s factor if spring index is 6?

Cylindrical roller bearings have greater?

Which of the following errors are also known as cumulative errors?

Which of the following is a machine shaft?

The rotation of gears in internal gear pump takes place in?

Which of the following assumptions are made in torsion theory?

Energy is not conserved but destroyed in the process. What is the reason behind this?

Which of the following processes is used for surface finishing?

Which of the following activities or operations is not related to manufacturing?

Which of the following quantities has the dimensions [M0 L0 T 0]?

The rate of radiant flux between two black bodies is analogous to?

The radiation heat exchange between two bodies depends upon?

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

What is runaway speed of the runner of Pelton wheel?

The device which place the workpiece in the same position, in jig and fixture, cycle after cycle is called as?

Which quality management program is related to the maintenance of plants and equipments?

The body whose surface does not coincide with the streamline when places in a flow is called as?

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