Model Exam Paper 1

Most important points for upcoming technical exam & Interview

1.The standard unit for the rate of heat transferred is the watt (W), defined as one joule per second.

2.specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

3.Work input is directly proportional to heat and the constant of proportionality is called joule’s equivalent & mechanical equivalent of heat

4.The enthalpy of a system is equal to the system's internal energy plus the product of its pressure and volume.

H=U+pv

5.the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.

6.The zeroth law of thermodynamics states that if two thermodynamic systems each are in thermal equilibrium with a third, then they are in thermal equilibrium with each other.

7.The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system.

8.The second law of thermodynamics states that the entropy of any isolated system always increases.

9.Merchant circle diagram is used to analyze the forces acting in metal cutting.

10.With the slope, n and intercept, c, Taylor derived the simple equation as VTn = C where, n is called, Taylor's tool life exponent. The values of both 'n' and 'c' depend mainly upon the tool-work materials and the cutting environment (cutting fluid application).

11.ECONOMIC ORDER QUANTITY (EOQ) MODEL. The economic order quantity (EOQ) is the order quantity that minimizes total holding and ordering costs for the year.

12.Resistance increases, in case of conductor, with increase in temperature and decreases, in case of insulator, due to increase in temperature. So, with increase in temperature, the resistance of conductor increases. But in case of insulator, there is a large energy gap between the two bands.

13.important reasons for grounding electrical currents is that it protects your appliances

14.MCB

Its basic function is to interrupt current flow after a fault is detected.

15.Voltage-ELCBis a voltage operated circuit breaker. The device will function when the Current passes through the ELCB.

16.Voltage-ELCB contains relay Coil which it being connected to the metallic load body at one end and it is connected to ground wire at the other end.

17.Conventional Manufacturing Process

Conventional machining uses tools, such as lathes, milling machines, boring machines, drill presses, or others, with a sharp cutting tool to remove material to achieve the desired geometry. It is nothing but the process in which the material is removed by the direct contact between tool and workpiece.

18.What is kinematics?

Kinematicsis a branch of classical mechanics that describes the motion of points, bodies (objects), and systems of bodies (groups of objects) without considering the forces that caused the motion.

19.What is dynamics of machined?

Dynamics is the branch of applied mathematics (specifically classical mechanics) concerned with the study of forces and torques and their effect on motion, as opposed to kinematics, which studies the motion of objects without reference to these forces.

20.Four bar chain mechanism.

In this mechanism, the link which can make complete rotation is known as crank (link 2). The link which oscillates is known as rocker or lever (link 4).

21.What is gyroscope?

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a device consisting of a wheel that turns very quickly inside a frame and does not change position when the frame is moved

22.What is gear train?

A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. Eg. See bicycle gearing.

23.Total quality management

Total quality management consists of organization-wide efforts to "install and make permanent a climate where employees continuously improve their ability to provide on demand products and services that customers will find of particular value."

24.Liquid-in-Glass Thermometer. The liquid-in-glass thermometer is one of the most common instruments used today to measure temperature.

25.There are a few different instruments used to measure air pressure. One common one is the barometer. Another type of pressure gauge is the Bourdon tube. It is used to measure the pressure of gases or liquids in a sealed container.

26.The pitot tube measures the fluid flow velocity by converting the kinetic energy of the flow into potential energy.

27.Electronic governance or e-governance is the application of information and communication technology (ICT) for delivering government services, exchange of information, communication transactions, integration of various stand-alone systems and services between government-to-citizen (G2C), government-to-business (G2B)

28.The unique application of ICT in business processes such as design, engineering, manufacturing, purchasing, physical distribution, production management and supply chain management.

29.Fiscal Incentives are tax measures geared to encourage industrial development. These incentives are designed to assist manufacturing entrepreneurship.

30.The Payment of Gratuity (Amendment) Bill, 2018 has been passed by Lok Sabha on 15th March, 2018 and by the Rajya Sabha on 22nd March, 2018, has been brought in force on 29th March, 2018. Background: The Payment of Gratuity Act, 1972 applies to establishments employing 10 or more persons.

31.What is a designated trade?

Designated trade is any trade/occupation/any subject field in engineering/ non engineering/ technology/any vocational course as notified by the Government.

32.When was the Apprentices Act enacted and implemented?

The Apprentices Act was enacted in 1961 and implemented w.e.f. 01.03.1962. It extends to the whole of India.

33.The Apprentices Act was first amended in 1973 to include training of graduate and diploma engineers as “graduate” and “technician” apprentices.

34.How many times the Apprentices Act, 1961 has been amended so far?

times (1973, 1986, 1997, 2007 and 2014)

35.National Apprenticeship Promotion Scheme is a Scheme launched by Ministry of Skill Development and Entrepreneurship.

36.Ministry of Skill Development & Entrepreneurship is responsible for monitoring the implementation of the Apprenticeship act.

37.An apprentice who has age less or equal to 21 Years is a fresher.

38.The size of a cam depends upon

base circle

39.Base circle is the smallest circle that can be drawn to the cam profile.

40.Pitch circle is a circle drawn from the centre of the cam through the pitch points.

41.Prime circle is the smallest circle that can be drawn from the centre of the cam and tangent to the pitch curve.

42. What is pressure angle?

The angle between the direction of the follower motion and a normal to the pitch curve that is called pressure angle.

43.The cam follower generally used in automobile engines is spherical faced follower.

44.The cam follower extensively used in air-craft engines is roller follower.

45.Why Ofset is provided to a cam follower mechanism

For minimise the side thrust.

46.For low and moderate speed engines, the cam follower should move with

simple harmonic motion.

47.For high speed engines, the cam follower should move with

cycloidal motion

48.Only cycloidal motion gives maximum acceletation. So it is considered the most dynamic cam- follower mechanism.

49.UP became the first state to endorse which draft law?

Muslim Women (Protection of Rights on Marriage) Act

50.Which state passed a bill awarding death penalty to those found guilty of raping minors in Dec, 2017?

Madhya Pradesh

51.What does SAUBHAGYA stand for?

Pradhan Mantri Sahaj Bijli Har Ghar Yojana