OHPC Technical Exam paper for post of Welder trainee (Exam date :-28/11/2022)

 

Q.1 The volumetric capacity will be lower for refrigerants with a ______ temperature. Ans 1. low critical 2. high critical 3. constant critical 4. zero critical

Q.2 When was the central government programme, "National clean air programme," launched? Ans 1. 2020 2. 2018 3. 2019 4. 2017

Q.3 ______ instrument can measure the inside diameter of a hole. Ans 1. Bevel protractor 2. Steel ruler 3. Dial indicator 4. Inside calliper and steel ruler

Q.4 The forging process can be classified in different ways. Which of the following is NOT a forging process? Ans 1. Open die forging 2. Impression die forging 3. Hydrostatic forging 4. Flash-less forging

Q.5 An electrode is used in different types of welding processes. Which of the following uses an electrode of a non-consumable type? Ans 1. Gas tungsten arc welding 2. Electric arc welding 3. Gas welding 4. Resistance welding Question ID : 9744434813 Status : Answered Chosen Option : 1

Q.6 When the equipment has a malfunction which of the following types of maintenance is used? Ans 1. Preventive Maintenance 2. Predictive Maintenance 3. Breakdown maintenance 4. Planned Maintenance

Q.7 For the single-stage compressor, it may vary from ______. Ans 1. 15 to 20 percent 2. 1 to 2 percent 3. 20 to 30 percent 4. 2 to 10 percent

Q.8 We use lubricants for different purposes. What is the basic function of lubricants? Ans 1. To decrease the strength of the parts 2. To increase wear and friction 3. To reduce wear and friction 4. To increase the generation of heat at the contact

Q.9 Which of the following is an advantage of the belt drive? Ans 1. In belt drive, there is a significant amount of power loss. 2. It has a variable velocity ratio due to slip. 3. Belt drive limits the speed range. 4. It has a low maintenance cost.

Q.10 A typical metal working process is shown in the figure below. What is the name of the process shown? Ans 1. Forging process 2. Deep drawing process 3. Rolling process 4. Forward extrusion process

Q.11 Different devices are being used in the fitting shop for different purposes. From the list, the device that can be used for holding the workpiece is a: Ans 1. bench vice 2. vernier height gauge 3. bevel protractor 4. slip gauge

Q.12 Which of the following practices is taken under the maintenance task of hydraulic components? Ans 1. Filters must be changed regularly based on the filter condition 2. Identify the proper deflection and tension for the belt 3. Check runout on shafts and couplings 4. Set tension to specifications

Q.13 Rolling contact bearing is also known as: Ans 1. thrust bearing 2. anti-friction bearing 3. journal bearing 4. hydrodynamic bearing

Q.14 Which metal is used for making bearings that are subjected to heavy load? Ans 1. Sintered alloys 2. White metal 3. Copper 4. Nylon

Q.15 Different measuring instruments can accomplish linear measurements of the dimensions. Which of the following can be used for checking the surface flatness and parallelism of bars? Ans 1. Spherometer 2. Dial indicator 3. Vernier calliper 4. Micrometre

Q.16 Many instruments are used to measure the liner dimension of the geometry. Which of the following instruments is NOT used to measure the angle? Ans 1. Micrometre 2. Bevel protractor 3. Combination set 4. Protractor

Q.17 In the metal working process, the deformation of the workpiece above the recrystallisation temperature is defined by which of the following processes? Ans 1. Hot working process 2. Manual working process 3. Cold working process 4. Warm working process

Q.18 Which of the following is NOT included in the direct maintenance costs? Ans 1. Labour 2. Materials 3. Environment 4. Contract services

Q.19 The "Go Green" initiative for the environment's safety was launched by which of the following companies? Ans 1. Hindustan Unilever 2. Tata motors 3. Mahindra 4. Hyundai India

Q.20 Which of the following tools is used to produce internal threads on hollow cylindrical workpieces? Ans 1. Tape 2. Bi-hexagonal ring spanner 3. Pipe cutter 4. Threading dies

Q.21 With the help of the rotor system, the rotational energy from a fluid is converted into usable energy or work. For this purpose, which of the following machines is well suitable? Ans 1. Pump 2. Flywheel 3. Turbine 4. Compressor

Q.22 The figure shown below is an image of which of the following tools? Ans 1. Turning tool 2. Tapping tool 3. Drill bit 4. Reaming tool

Q.23 With the point for the safety of the person in the workshop, which of the following statements is INCORRECT? Ans 1. Goggles are not required to wear while performing the welding operation. 2. It was always recommended to wear the shoe in the workshop. 3. Loose clothes are not allowed to wear in the workshop. 4. It was always recommended to wear a helmet in the workshop.

Q.24 Which of the following links is NOT connected to the frame? Ans 1. Floating link 2. Resistance link 3. Flexible link 4. Rigid link

Q.25 Which of the following statements about the cross-joint of pipe fitting is correct? Ans 1. It is used to join the two pipes. 2. It is used to join the four pipes. 3. It is used to join the three pipes. 4. It is used to join the five pipes.

Q.26 Altogether, there are how many types of fits? Ans 1. Four 2. Three 3. One 4. Two

Q.27 Which of the following measuring CANNOT be used to measure the linear measurement? Ans 1. Micrometre 2. Vernier calliper 3. Ruler 4. Autocollimator

Q.28 The right to development act must be accomplished in such a way that both the environment and development needs must be fully filed for ______. Ans 1. month and year needs 2. present and future needs 3. today and tomorrow needs 4. past and future needs

Q.29 ______ maintenance is usually required for porting the software to work in a new environment, such as work with a new operating system. Ans 1. Shutdown 2. Scheduled 3. Adaptive 4. Corrective

Q.30 Some of the parts of the lathe machine are listed below. Which of the following is NOT a part of the lathe machine? Ans 1. Carriage 2. Cutter 3. Headstock 4. Tailstock

Q.31 Which of the following tools is used to produce external threads on cylindrical workpieces? Ans 1. Threading dies 2. Pipe bending machine 3. Bi-hexagonal ring spanner 4. Pipe cutter

Q.32 For fixing the two mating parts tightly in the assembly, which of the following types of fit is generally used? Ans 1. Clearance fit 2. Transition fit 3. Force fit 4. For fixing two parts, the fit has no use

Q.33 What is the maximum voltage at which the underground power transmission system can be operated? Ans 1. 66 kV 2. 55 kV 3. 33 kV 4. 44 kV

Q.34 Which of the following does NOT come in the category of arc welding process? Ans 1. Friction welding 2. Resistance welding 3. Gas tungsten arc welding 4. Electric arc welding

Q.35 Which of the following is used for regulating the high-pressure airflow in the discharge tube? Ans 1. Air dryer 2. Filter 3. Air regulator 4. Drain valve

Q.36 Forging is one of the bulk deformation processes of metal forming. In flashless forging, what is the significance of the term flashless? Ans 1. Incomplete forging operation. 2. No flash is formed. 3. Flash may be formed sometimes. 4. A partial flash is formed.

Q.37 Which of the following when opened allows oil to return to the oil sump when the oil pressure increases more than the prescribed limit? Ans 1. Balancer 2. Release chamber 3. Stop valve 4. Relief valve

Q.38 Different tools can be used for different measuring requirements. One of the measuring instruments is shown in the figure below. What is the name of this instrument? Ans 1. Micrometre 2. Vernier height gauge 3. Vernier calliper 4. Spherometer

Q.39 From the list of different bearing types, which one will come under the category of sliding contact bearing? Ans 1. Needle bearing 2. Ball bearing 3. Thrust bearing 4. Journal bearing

Q.40 Which of the following statements about the tapping process in the category of the machining process is correct? Ans 1. It is hole producing operation. 2. It is a process of cleaning the surface. 3. It is the process of producing a thread inside the hole. 4. It is a single-point cutting operation.

Q.41 ______ is a project led by Africans that intends to build the world's largest living structure. Ans 1. Maiden island reef 2. Belize barrier reef system 3. Peruvian amazon 4. Great green wall

Q.42 The other name by which planned maintenance is very famous is the: Ans 1. preventive maintenance 2. breakdown maintenance 3. corrective maintenance 4. total productive maintenance

Q.43 What is the name of the tool shown below? Ans 1. Surface plate 2. V- Block 3. Marking gauge 4. Bench vice

Q.44 Accidents can take place in different ways. Which of the following is an example of the physical hazards in the workshop? Ans 1. Hazards due to vibration 2. Hazards due to toxic gas 3. Hazards due to virus 4. Hazards due to chemicals

Q.45 Which type of fluid can be used in the compressor? Ans 1. Viscous fluid 2. Idle fluid 3. Compressible fluid 4. Incompressible fluid

Q.46 What is the material that can be used for manufacturing the surface plate in the shop? Ans 1. High carbon steel 2. Mild steel 3. Tool steel 4. Grey cast iron

Q.47 From the gas welding point of view, which of the following statements is correct for the generation of the flame shown in the figure below? Ans 1. When equal volumes of acetylene and nitrogen are mixed 2. When a large volume of oxygen and a low volume of acetylene is mixed 3. When equal volumes of acetylene and oxygen are mixed 4. When a large volume of acetylene and a low volume of oxygen is mixed

Q.48 Different tools are used in the fitting shops. From the list given below, find the tool that is NOT used in the fitting shop: Ans 1. welding tools 2. measuring tools 3. holding tools 4. cutting tools

Q.49 A Vernier calliper can measure different dimensions. Which dimension CANNOT be measured by Vernier calliper? Ans 1. The angle of the taper turning 2. Inside diameter of the bore 3. Height of a cylinder 4. The outside diameter of the rod

Q.50 Some of the manufacturing processes are listed below. Which process can be used to seal? Ans 1. Metal forming 2. Adhesive bonding 3. Thread cutting 4. Metal cutting

Q.51 Which of the following statements about the grinding process in the category of the machining process is correct? Ans 1. It is a hole producing operation. 2. It is a single-point cutting operation. 3. It is a process of cleaning the surface. 4. It is a multiple-point machining operation.

Q.52 What is the advantage of the gear system? Ans 1. Sensitive to impurities 2. Requires precise adjustment 3. No slipping 4. Requires lubrication

Q.53 In different types of welding processes, filler rods are generally used. Which of the following points is INCORRECT about the filler rod? Ans 1. The filler rod should be flux coated to protect the weld pool. 2. The filler rod should be non-consumable. 3. The filler rod should have the same chemical properties as the base material. 4. The filler rod should be held vertically while welding.

Q.54 Some of the processes involved in the AC plant are listed below. Which of the following does NOT come under the category of AC plant system? Ans 1. Cooling and dehumidification 2. Heating and humidification 3. Melting and solidification 4. Sensible cooling

Q.55 Which of the following statements about the properties of the bearing material is correct? Ans 1. Low endurance strength 2. Low compressive strength and high endurance strength 3. High endurance strength 4. Low compressive strength

Q.56 The lubricating oil circulated to the moving parts of the engine under pressure is known as: Ans 1. petrol oil lubrication 2. combined lubrication 3. pressurised lubrication 4. dry sump lubrication

Q.57 The given figure represents a: Ans 1. 3-phase induction motor 2. single-phase resolution motor 3. synchronous motor 4. servo motor

Q.58 Boring is a process that can be performed on the lathe machine. The main purpose of the boring process is: Ans 1. to increase the size of the hole 2. to produce different sizes of the hole 3. to make the workpiece free from the burs 4. to reduce the size of the hole

Q.59 The process in which the workpiece is compressed between the two dies and the workpiece gets the shape of the die is known as the: Ans 1. forging process 2. drawing process 3. extrusion process 4. rolling process

Q.60 There are many functions of a hydraulic turbine governor. Which of the following is NOT a primary function of the hydraulic turbine governor? Ans 1. Unable to share load changes with the other units in response to system frequency error 2. To maintain system frequency 3. To maintain and adjust unit speed to synchronise with the running units 4. In response to the operator, it adjusts the output

Q.61 Arc welding technique is greatly used in industries. Which of the following does NOT fall in the category of the arc welding process? Ans 1. Resistance welding 2. Friction welding 3. Metal inert gas welding 4. Tungsten inert gas welding

Q.62 Many materials are available for manufacturing the different tools in the fitting shop. What material can be used for manufacturing the hammer in the shop? Ans 1. Ceramics 2. Cast iron (CI) 3. High carbon steel (HCS) 4. High-speed steel (HSS)

Q.63 Sleeve coupling is also called ______. Ans 1. split coupling 2. flange coupling 3. clamp coupling 4. box coupling

Q.64 A throttling device used in the domestic refrigerator and most popular is: Ans 1. manually operated valve 2. capillary tube 3. thermostatic valve 4. electrically operated throttling valve

Q.65 Which of the following motors needs to be started with the loaded condition because, at no load, the motor will rotate at a very high speed? Ans 1. AC induction 2. DC series 3. DC shunt 4. DC long shunt

Q.66 If the flow rate is 6cc/revolution, and if the prime mover (e.g., electric motor) has a speed of 1800 rpm, then, in one minute, it should deliver ______. Ans 1. 8.2 l/min 2. 10.8 l/min 3. 8.4 l/min 4. 10 l/min

Q.67 Safety while working in the workshop is very important. If someone fails to maintain the safety norms while welding using the gas welding process, which of the following injuries occurs commonly? Ans 1. The flame of the gas welding causes burns on the body. 2. It causes shock in the body due to electricity. 3. Hot flying parts will fly, and it will cause burning. 4. Cut injury on the body causes bleeding from the body.

Q.68 Instead of one impeller, a centrifugal pump with two or more impellers is known as a: Ans 1. reciprocating pump 2. multistage centrifugal pump 3. propeller pump 4. jet pump

Q.69 A combination set is comprised of different tools used for measuring. Which of the following tools is NOT included in the combination set? Ans 1. Hacksaw 2. Steel ruler 3. Try square 4. Bevel protractor

Q.70 Flange coupling is a ______ between rotating shafts that consists of flanges, one of which is fixed at the end of each shaft. Ans 1. sleeve coupling 2. driving coupling 3. muff coupling 4. split coupling

Q.71 The different joining process is listed below. Which of the following does NOT fall under the category of fastening? Ans 1. Joining by making use of the nut and bolt 2. Joining by using the arc welding 3. Joining by making use of the rivet 4. Joining by making use of the screw

Q.72 Which of the following is NOT a type of welding process? Ans 1. Electro slag 2. Rolling 3. Resistance butt 4. Thermite

Q.73 Name the measuring tool shown in the figure below. Ans 1. Scriber 2. Drill bit 3. Punch 4. Calliper

Q.74 What is the main purpose of using lubrication in any system? Ans 1. To increase the heat at the contact between two parts 2. To increase friction, wear and tear between the two parts 3. To reduce the heat at the contact between two parts 4. To reduce friction, wear and tear between the two parts

Q.75 From the application point of view, for carrying a heavy load which type of bearing can be used? Ans 1. Roller bearing 2. Thrust bearing 3. Ball bearing 4. Deep groove ball bearing

Q.76 Turbines can have many types as per the need they are being used. Which of the following is NOT a type of turbine? Ans 1. Solid turbine 2. Steam turbine 3. Wind turbine 4. Water turbine

Q.77 Feeler gauge lies in the category of: Ans 1. cutting tool 2. measuring and marking tool 3. filling tool 4. holding tool

Q.78 The instrument that does NOT fall in the category of a precision instrument is: Ans 1. micrometre 2. vernier calliper 3. outside calliper 4. vernier height gauge

Q.79 Which of the following types of pneumatic actuators are air motors? Ans 1. Pneumatic cylinder 2. Linear actuator 3. Rotary actuator 4. Limited angle actuator

Q.80 Different tools are used in the fitting shop. The name of the tool shown below is: Ans 1. Hand vice 2. Bench vice 3. V- Block 4. Surface plate

Section : Reasoning

Q.1 Ans 1.  2.  3.  4.

Q.2 Ans 1.  2.  3.  4.

Q.3 Ans 1.  2.  3.  4.

Q.4 Ans 1.  2.  3.  4.

Q.5 Ans 1.  2.  3.  4.

Q.6 Ans 1.  2.  3.  4.

Q.7 Ans 1.  2.  3.  4.

Q.8 Ans 1.  2.  3.  4.

Q.9 Ans 1.  2.  3.  4.

Q.10 Ans 1.  2.  3.  4.

Section : Quantitative Aptitude

Q.1 Ans 1.  2.  3.  4.

Q.2 Ans 1.  2.  3.  4.

Q.3 Ans 1.  2.  3.  4.

Q.4 Ans 1.  2.  3.  4.

Q.5 Ans 1.  2.  3.  4.

Q.6 Ans 1.  2.  3.  4.

Q.7 Ans 1.  2.  3.  4.

Q.8 Ans 1.  2.  3.  4.

Q.9 Ans 1.  2.  3.  4.

Q.10 Ans 1.  2.  3.  4.

Section : General Awareness

Q.1 Which of the following locations is most well-known for the presence of Buddhist cave temples? Ans 1. Elephanta 2. Khajuraho 3. Ajanta 4. Nalanda

Q.2 Which device is used to record the intensity of Earthquakes? Ans 1. Scotograph 2. Seismograph 3. Dosimeter 4. Pyrometer

Q.3 Industrial Policy Resolution, 1956, laid emphasis on the role of the: Ans 1. public sector 2. profit sector 3. private sector 4. joint sector

Q.4 Ashleigh Barty, who recently announced retirement is associated with which sports? Ans 1. Boxing 2. Cricket 3. Tennis 4. Badminton

Q.5 ‘Dyarchy’ was introduced in the Government of India Act of: Ans 1. 1950 2. 1919 3. 1909 4. 1935

Q.6 The theories for which Albert Einstein received the Nobel Prize? Ans 1. Theory of Brownian motion 2. Theory of relativity 3. Theory of photo electricity 4. Theory of specific heats

Q.7 Which of the following does NOT have anything to do with the organisation of banks? Ans 1. Fiscal deficit 2. Cash reserve ratio 3. Bank rate 4. Credit creation

Q.8 The High Court of Delhi came up in: Ans 1. 1966 2. 1959 3. 1950 4. 1970

Q.9 GPS stands for: Ans 1. Global Point Solution 2. Global Positioning System 3. Global Posting Signal 4. Global Positioning Station

Q.10 Which of the following is NOT a world heritage site? Ans 1. Khajuraho temples 2. Bhimbetka rock shelters 3. Sanchi stupa 4. Mandu fort

Section : English Language

Q.1 Select the most appropriate option to fill in the blank. Sumita found the keys that ____________ yesterday. Ans 1. were missing 2. gone missing 3. was missing 4. go missing

Q.2 Select the option that expresses the given sentence in reported speech. She said, “Oh! I lost my pen.” Ans 1. She felt that she had lost her pen. 2. She exclaimed that she had lost her pen. 3. She told that she had lost her pen. 4. She says that she had lost her pen.

Q.3 Select the option that expresses the given sentence in passive voice. Sujata gave me a beautiful dress. Ans 1. I was giving a beautiful dress by Sujata. 2. I was given a beautiful dress by Sujata. 3. I was given a beautiful dress from Sujata. 4. I was give a beautiful dress to Sujata.

Q.4 Select the most appropriate verb to fill in the blank. They _________ consulting their teacher at that time. Ans 1. were 2. are 3. was 4. has

Q.5 Select the most appropriate meaning of the given idiom. Steal someone’s thunder Ans 1. Make a situation worse 2. Decide to do something unpleasant that you have avoided doing 3. Ignore someone 4. Take credit for someone else achievements

Q.6 Select the most appropriate adjective to fill in the blank. Provide for the ________, the best will save itself. Ans 1. worst 2. bad 3. worse 4. most worst

Q.7 Select the most appropriate preposition to fill in the blank. The fence _________ the house is necessary for safety. Ans 1. around 2. in 3. above 4. on

Comprehension: Read the given passage and answer the questions that follow. Staying organised is a lot easier thanks to the internet. Nowadays, students have a lot of schoolwork and a hectic schedule. It’s actually rather difficult for them to fit it all in. They can, however, plan their time in a better way thanks to a profusion of websites and applications. Furthermore, because these websites and applications are hosted in the cloud, users can access them from any device. Kids should develop the ability to stay organised as a future talent. They would have to manage a variety of activities as adults, including employment, friendships, groups, projects and pals. Having the capacity to effectively allocate time is a terrific method to simply get things done. They can enroll on an education platform. The manner in which online instructors convey topics is so interesting that children are compelled to continue studying out of pure curiosity. This form of education may provide students with a broader perspective of the society and assist them in pursuing their desired careers. Remember that when children acquire skills at young age, they have a natural edge over those who develop a talent later in life. Because kids have sharp and fresh minds and also have the chance to learn many new topics and enhance their knowledge at this time. If they are permitted to use the internet, kids will most likely learn new things. For most of the students, the internet will be an aspect in their future. As a result, getting used to this now is critical. Kids must know how to utilise the internet, as well as whether sources are reliable and what basic chances it provides. Because these students possess the talents that businesses seek, they will become even more beneficial to the society. Children who do not have access to the internet nowadays are at a risk of being left behind by fellow students. In the long run, it may jeopardise their chances of a successful life. Though there are many reasons for which students should get limited access to the internet, there are also many positive sides of the internet if used in a proper way, stated above, which can be beneficial in many ways. SubQuestion No : 8 Q.8 Select the most appropriate ANTONYM of the given word. Jeopardise Ans 1. Risk 2. Safeguard 3. Menace 4. Hazard

Comprehension: Read the given passage and answer the questions that follow. Staying organised is a lot easier thanks to the internet. Nowadays, students have a lot of schoolwork and a hectic schedule. It’s actually rather difficult for them to fit it all in. They can, however, plan their time in a better way thanks to a profusion of websites and applications. Furthermore, because these websites and applications are hosted in the cloud, users can access them from any device. Kids should develop the ability to stay organised as a future talent. They would have to manage a variety of activities as adults, including employment, friendships, groups, projects and pals. Having the capacity to effectively allocate time is a terrific method to simply get things done. They can enroll on an education platform. The manner in which online instructors convey topics is so interesting that children are compelled to continue studying out of pure curiosity. This form of education may provide students with a broader perspective of the society and assist them in pursuing their desired careers. Remember that when children acquire skills at young age, they have a natural edge over those who develop a talent later in life. Because kids have sharp and fresh minds and also have the chance to learn many new topics and enhance their knowledge at this time. If they are permitted to use the internet, kids will most likely learn new things. For most of the students, the internet will be an aspect in their future. As a result, getting used to this now is critical. Kids must know how to utilise the internet, as well as whether sources are reliable and what basic chances it provides. Because these students possess the talents that businesses seek, they will become even more beneficial to the society. Children who do not have access to the internet nowadays are at a risk of being left behind by fellow students. In the long run, it may jeopardise their chances of a successful life. Though there are many reasons for which students should get limited access to the internet, there are also many positive sides of the internet if used in a proper way, stated above, which can be beneficial in many ways. SubQuestion No : 9 Q.9 Which kind of passage is this? Ans 1. Poetry 2. Cause and effect 3. Chronological, process or sequence 4. Problem / Solution

Comprehension: Read the given passage and answer the questions that follow. Staying organised is a lot easier thanks to the internet. Nowadays, students have a lot of schoolwork and a hectic schedule. It’s actually rather difficult for them to fit it all in. They can, however, plan their time in a better way thanks to a profusion of websites and applications. Furthermore, because these websites and applications are hosted in the cloud, users can access them from any device. Kids should develop the ability to stay organised as a future talent. They would have to manage a variety of activities as adults, including employment, friendships, groups, projects and pals. Having the capacity to effectively allocate time is a terrific method to simply get things done. They can enroll on an education platform. The manner in which online instructors convey topics is so interesting that children are compelled to continue studying out of pure curiosity. This form of education may provide students with a broader perspective of the society and assist them in pursuing their desired careers. Remember that when children acquire skills at young age, they have a natural edge over those who develop a talent later in life. Because kids have sharp and fresh minds and also have the chance to learn many new topics and enhance their knowledge at this time. If they are permitted to use the internet, kids will most likely learn new things. For most of the students, the internet will be an aspect in their future. As a result, getting used to this now is critical. Kids must know how to utilise the internet, as well as whether sources are reliable and what basic chances it provides. Because these students possess the talents that businesses seek, they will become even more beneficial to the society. Children who do not have access to the internet nowadays are at a risk of being left behind by fellow students. In the long run, it may jeopardise their chances of a successful life. Though there are many reasons for which students should get limited access to the internet, there are also many positive sides of the internet if used in a proper way, stated above, which can be beneficial in many ways. SubQuestion No : 10 Q.10 Identify the most appropriate title for the given passage. Ans 1. Internet – a Boon 2. Internet is a Part of Life 3. Internet Should Be Pre-Paid 4. Free Access to the Internet