WorksheetsUnderstanding Cooling Systems
Total questions: 70
Worksheet time: 35mins
In a hot summer day, Adi is trying to understand how his air conditioning system works. He learns that there is a crucial component responsible for managing the refrigerant. The main function of a compressor in a cooling system is (a) .
In a hot summer day, Rudi is trying to cool down his room using an air conditioner. He wonders which component of the refrigeration cycle is responsible for absorbing heat from the air inside his room: (a)
Angga is holding a cup of hot coffee in his hand while sitting outside on a cool day. The principle that explains the transfer of heat from the hot coffee to the cooler air around it is (a) .
Heat transfer by conduction only
Second law of thermodynamics
First law of thermodynamics
Law of conservation of energy
Heat transfer by convection
Nita is an HVAC technician working on a new cooling system installation. She needs to choose a refrigerant that is commonly used in such systems. She should consider (a) .
R-410A
R-134a
R-22
R-12
R-404A
In a bustling restaurant kitchen, the head chef, Dedi, relies on a refrigeration system to keep ingredients fresh. One day, he notices that the system's condenser is crucial for maintaining the quality of the food. The role of the condenser in the refrigeration cycle is (a) .
The condenser absorbs heat and vaporizes refrigerant
The condenser filters impurities from the refrigerant
The condenser rejects heat and condenses refrigerant
The condenser circulates refrigerant throughout the system
The condenser maintains the temperature of the refrigerant
Wahyu is conducting an experiment in his lab where he is trying to create energy from scratch. He remembers a fundamental principle of physics that states energy cannot be created or destroyed. He is referring to the (a) of thermodynamics.
Third law of thermodynamics
First law of thermodynamics
Zeroth law of thermodynamics
Second law of thermodynamics
Law of conservation of energy
Susi is cooking on the stove and accidentally touches the hot pot with her hand. The type of heat transfer that occurs through direct contact is (a) .
Convection
Conduction
Radiation
Evaporation
Insulation
During a recent environmental seminar, Rahman learned about various refrigerants and their impact on global warming. He was particularly interested in finding out which refrigerant is known for having a low global warming potential: (a)
In a refrigeration system at a local restaurant, the chef noticed that the food was not cooling properly. After inspecting the system, he found that the expansion valve was malfunctioning. The purpose of an expansion valve in a cooling system is (a) .
Nita is trying to understand how her refrigerator works. She learns that in a refrigeration cycle, there is a component that releases heat to the environment. This component is called (a) .
Condenser
Compressor
Evaporator
Expansion valve
Heat Exchanger
Tiara is considering upgrading her home cooling system to improve energy efficiency. She wants to know what the primary measure of energy efficiency in cooling systems is before making her decision. The primary measure is (a) .
Thermal Efficiency Ratio (TER)
Energy Consumption Index (ECI)
Energy Efficiency Ratio (EER) or SEER
Coefficient of Performance (COP)
Seasonal Energy Efficiency Ratio (SEER)
Faisal is looking to buy a new household refrigerator. He wants to know which type of refrigerant is typically used in these appliances. The refrigerant used is (a) .
R-600a (isobutane)
R-410A (hydrofluorocarbon)
R-22 (chlorodifluoromethane)
R-134a (tetrafluoroethane)
R-290 (propane)
Adi is working in a refrigeration lab and is experimenting with different refrigerants. He notices that when he increases the pressure in the system, the boiling point of the refrigerant changes. Increasing pressure (a) the boiling point of a refrigerant.
Increasing pressure raises the boiling point
Increasing pressure makes the refrigerant boil faster
Increasing pressure has no effect on the boiling point
Increasing pressure lowers the boiling point
Increasing pressure stabilizes the boiling point
In a bustling restaurant kitchen, the head chef, Indah, is trying to keep the kitchen cool while preparing meals. She notices that the cooling system is crucial for maintaining the right temperature. The component in this cooling system responsible for circulating the refrigerant is (a) .
Expansion Valve
Compressor
Condenser
Evaporator
Refrigerant Pump
During a community meeting, Ratna raised a concern about the environmental impact of traditional refrigerants used in many households. She asked the attendees, "The main environmental concern associated with traditional refrigerants is (a) ."
Ozone layer depletion
Water pollution
Airborne particulate matter
Global warming
Climate change
During a hot summer day, Rina is using her air conditioner to cool down her room. She notices that the refrigerant inside the unit is changing from a liquid to a gas. The process of converting a liquid refrigerant into a gas is called (a) .
Evaporation
Sublimation
Condensation
Vaporization
Boiling
Rahman is considering different factors that might affect the efficiency of his new cooling system. He wonders which factor does NOT impact its performance: (a)
The type of refrigerant used
The installation location of the system
The size of the cooling system
The color of the cooling system's exterior
The brand of the cooling system
Adi is considering purchasing a new air conditioning unit for his home. He wants to understand how to evaluate its efficiency. The significance of the coefficient of performance (COP) in cooling systems is (a) .
The COP measures the temperature difference between the indoor and outdoor environments.
The COP indicates the efficiency of the cooling system in converting energy into cooling output.
The COP is used to calculate the energy consumption of the air conditioning unit.
The COP indicates the size of the cooling unit required for a specific space.
The COP helps in comparing different air conditioning units for better decision making.
Imagine a cozy kitchen where Sri is boiling water in a pot on the stove. As the water heats up, it begins to circulate, creating a flow of warm water rising to the top and cooler water sinking to the bottom. The type of heat transfer occurring in this scenario is (a) .
Convection
Radiation
Insulation
Conduction
Evaporation
In a hot summer, Dedi decides to install a new cooling system in his home. He wants to ensure that the system operates efficiently and keeps his house comfortable. The main purpose of insulation in his cooling system is (a) .
To minimize heat transfer and improve efficiency
To increase heat transfer and reduce cooling effectiveness
To enhance the aesthetic appearance of the system
To provide structural support for the system
To reduce noise from the cooling system
Apakah nama komponen yang berfungsi untuk membuang panas dalam coolant ke udara bebas... ?
Radiator
Intake Manifold
Oil cooler
Water pump
Water jacket
Valve apasajakah yang terdapat pada tutup radiator/pressure cap.....?
Pressure valve & Water valve.
Water valve & Vacuum valve.
Vacuum Valve & Delivery valve.
Pressure valve & Vacuum valve.
Pressure valve & Delivery valve.
Dibawah ini sesuatu yang bisa menyebabkan kemungkinan terjadinya engine over heating....... Kecuali.
Pressure cap macet terbuka.
Water pump tidak mau berputar.
Thermostat macet membuka.
Air coolant kurang.
Fanbelt/tali kipas putus.
Jenis cooling system yang umum digunakan untuk pendinginan engine ada dua yaitu.....:
Water cooling & oil cooler.
Liquid cooling & Oil cooler.
Water cooling & liquid cooling.
Air cooling & pneumatic cooling.
Air cooling & Liquid cooling.
Apakah nama yang digunakan untuk penyimpanan/sirkulasi air didalam engine block.....?
Water coolant.
Bypass jacket.
Bypass area.
Bypass line
Water jacket.
Apakah nama komponen yang berfungsi untuk penghubung yang fleksibel antara engine dan bagian sistem pendinginan lainnya.
Connecting hose.
Bypass line.
Water jacket.
Oil cooler.
Water manifold.
Apa nama komponen yang berfungsi untuk mempercepat dan mengontrol temperatur kerja engine.
Water jacket.
Temperatur switch.
Thermostat.
Radiator.
Pressure cap.
Engine gagal mencapai temperatur operasional yang normal atau indikasi temperatur terganggu, hal tersebut disebabkan oleh........... ?
Thermostat macet terbuka.
Thermostat macet menutup.
Pressure cap macet terbuka.
Pressure cap macet tertutup.
Water pump macet/rusak.
Apakah yang kemungkinan menjadi penyebab bila air radiator mendidih........ ?
Thermostat rusak.
Radiator buntu.
Water jacket buntu.
Waterpump rusak.
Pressure cap macet terbuka.
Kapankah vacuum valve yang berada pada tutup radiator/pressure cap bekerja.......?
Bila engine operasi normal.
Bila engine baru dihidupkan.
Sesaat engine dimatikan.
Ketika engine digas tinggi.
Ketika engine mati dan temperatur sudah dingin.
Pada saat temperatur kerja engine belum tercapai dan thermostat masih menutup, lewat manakah aliran coolant...?
Oil cooler.
Bypass line
Water manifold.
Water jacket.
Water pump.
Mensirkulasikan coolant melalui sistem, mendorong coolant panas dari blok engine dan menekannya ke dalam radiator untuk pendinginan. ...... hal tersebut merupan fungsi dari....?
Fanbelt.
Water pump.
Water jacket.
Water flow.
Pompa air.
Menghembuskan/menghisap udara dingin melalui sirip-sirip radiator untuk menyerap panas yang dibawa oleh coolant dalam radiator secara lebih cepat...... hal tersebut merukan proses kerja dari.....?
Fan.
Fan belt.
Radiator.
Pressure cap.
Thermostat.
Apabila tekanan di dalam lebih kecil dari tekanan udara luar ( 1atm ) maka komponen tersebut akan terbuka...... komponen apakh yang dimaksud....?
Vacuum valve.
Pressure Valve.
Pressurecap.
Water jacket.
Air release valve.
Sistem tekanan mengijinkan tercapainya temperatur operasi tanpa mendidihkan cairan pendingin atau tanpa kehilangan cairan akibat penguapan....... Hal tersebut merupakan proses kerja dari komponen.......?
Pressure cap.
Thermostat.
Water pump.
Radiator.
Cooling fan.
Bila thermostat macet menutup apakah kemungkinan yang akan terjadi......?
Engine over cooling.
Engine Over heating.
Engine transfer cooling.
Engine Transfer temperatur.
Engine over transfer cooling.
Berikut bagian-bagian utama dari sistem pendinginan engine kecuali :
Thermostat.
Fan belt.
Pressure cap.
Water jacket.
Water heater.
Pada saat temperatur mencapai suhu berapakah, thermostat mulai membuka.
60 derajat celcius.
70 derajat celcius.
80 derajat celcius.
90 derajat celcius.
100 derajat celcius.
Kapankah pressure valve yang berada pressure cap/tutup radiator akan membuka......?
Bila temperatur sudah mencapai 100 derajat celcius.
Bila temperatur sudah mencapai 90 derajat celcius.
Bila temperatur sudah mencapai 80 derajat celcius.
Bila tekanan melebihi 15 PSI.
Bila tekanan kurang dari 15 PSI.
Apakah nama komponen yang berfungsi untuk menaikkan titik didih air radiator.......?
Pressure Cap.
Thermostat.
Water Pump.
Water temperatur.
Thermo pump.
Bila pressure valve yang berada pada tutup radiator terbuka, kemanakah kelebihan volume air radiator akan dialihkan........?
Reservoir tank.
Water jacket.
Oil cooler.
Water manifold.
Water coolant.
Berikut proses pengetesan kebocoran pada cooling system kecuali.......?
Buka dan lepaskan cap dari radiator.
Cucilah cap seals dan vacuum relief valve dengan menggunakan air.
Lepas cap di atas pressure test unit sesuai dengan arahan pabrik.
Tekan plunger pada test unit pump perlahan-lahan sampai pada ukuran tertinggi yang bisa dibaca di gauge.
Periksa apakah ada kebocoran pada selang dan sambungan.
Untuk mengendalikan panas dari hasil pembakaran maka engine dilengkapi dengan......?
Exhaust Mufler.
Sistem pendingin.
Sistem pembuangan.
Sistem pemasukan.
Transfer temperatur.
Meneruskan tenaga putar dari crankshaft pulley untuk memutar fan dan water pump......Hal tersebut merupakan fungsi dari....?
Gear pump.
Fan belt.
Fan pulley.
Pulley belt.
Fan gear.
Untuk mentransfer panas dari dalam engine ke udara luar. Sistem ini dirancang untuk memindahkan panas dari engine dan mempertahankan engine pada temperatur operasinya yang paling efisien atau mencegah overheating...... hal tersebut merupakan proses kerja dari.....
cooling system.
water Lubrication system.
Air induction system.
Water transfer system.
Water Cooler system.
Apakah nama komponen yang berfungsi untuk membuang panas dalam coolant ke udara bebas... ?
Intake Manifold
Oil cooler
Radiator
Water pump
Water jacket
Valve apasajakah yang terdapat pada tutup radiator/pressure cap.....?
Pressure valve & Water valve.
Water valve & Vacuum valve.
Vacuum Valve & Delivery valve.
Pressure valve & Vacuum valve.
Pressure valve & Delivery valve.
Dibawah ini sesuatu yang bisa menyebabkan kemungkinan terjadinya engine over heating....... Kecuali.
Air coolant kurang.
Pressure cap macet terbuka.
Thermostat macet membuka.
Fanbelt/tali kipas putus.
Water pump tidak mau berputar.
Jenis cooling system yang umum digunakan untuk pendinginan engine ada dua yaitu.....:
Water cooling & oil cooler.
Liquid cooling & Oil cooler.
Water cooling & liquid cooling.
Air cooling & pneumatic cooling.
Air cooling & Liquid cooling.
Apakah nama yang digunakan untuk penyimpanan/sirkulasi air didalam engine block.....?
Water jacket.
Bypass line
Water coolant.
Bypass area.
Bypass jacket.
Apakah nama komponen yang berfungsi untuk penghubung yang fleksibel antara engine dan bagian sistem pendinginan lainnya.
Connecting hose.
Bypass line.
Water jacket.
Oil cooler.
Water manifold
Apa nama komponen yang berfungsi untuk mempercepat dan mengontrol temperatur kerja engine.
Radiator.
Pressurecap.
Thermostat.
Water jacket.
Temperatur switch.
Engine gagal mencapai temperatur operasional yang normal atau indikasi temperatur terganggu, hal tersebut disebabkan oleh........... ?
Thermostat macet terbuka.
Thermostat macet menutup.
Pressurecap macet terbuka.
pressurecap macet tertutup.
Water pump macet/rusak.
Apakah yang kemungkinan menjadi penyebab bila air radiator mendidih........ ?
Radiator buntu.
Thermostat rusak.
Waterpump rusak.
Water jacket buntu.
Pressure cap macet terbuka.
Kapankah vacuum valve yang berada pada tutup radiator/pressure cap bekerja.......?
Bila engine operasi normal.
Bila engine baru dihidupkan.
Sesaat engine dimatikan.
Ketika engine digas tinggi.
ketika engine mati dan temperatur sudah dingin.
Pada saat temperatur kerja engine belum tercapai dan thermostat masih menutup, lewat manakah aliran coolant...?
Bypass line
Water jacket.
Water manifold.
Oil cooler.
Water pump.
Mensirkulasikan coolant melalui sistem, mendorong coolant panas dari blok engine dan menekannya ke dalam radiator untuk pendinginan. ...... hal tersebut merupan fungsi dari....?
Fanbelt.
Water pump.
Water jacket.
Water flow.
Water cooler.
Menghembuskan/menghisap udara dingin melalui sirip-sirip radiator untuk menyerap panas yang dibawa oleh coolant dalam radiator secara lebih cepat...... hal tersebut merukan proses kerja dari.....?
Fan.
Fan belt.
Radiator.
Pressure cap.
Thermostat.
Apabila tekanan di dalam lebih kecil dari tekanan udara luar ( 1atm ) maka komponen tersebut akan terbuka...... komponen apakh yang dimaksud....?
Vacuum valve.
Pressure Valve.
Pressurecap.
Water jacket.
Water maniflod.
Sistem tekanan mengijinkan tercapainya temperatur operasi tanpa mendidihkan cairan pendingin atau tanpa kehilangan cairan akibat penguapan....... Hal tersebut merupakan proses kerja dari komponen.......?
Pressure cap.
Thermostat.
Water pump.
Radiator.
Water jacket.
Bila thermostat macet menutup apakah kemungkinan yang akan terjadi......?
Engine over cooling.
Engine Over heating.
Engine transfer cooling.
Engine Transfer temperatur.
Engine over transfer cooling.
Berikut bagian-bagian utama dari sistem pendinginan engine kecuali :
Water jacket.
Water heater.
Pressure cap.
Fan belt.
Thermostat.
Pada saat temperatur mencapai suhu berapakah, thermostat mulai membuka.
70 derajat celcius.
80 derajat celcius.
90 derajat celcius.
100 derajat celcius.
110 derajat celcius.
Kapankah pressure valve yang berada pressure cap/tutup radiator akan membuka......?
Bila temperatur sudahmencapai 100 derajat celcius.
Bila temperatur sudahmencapai 90 derajat celcius.
Bila temperatur sudahmencapai 80 derajat celcius.
Bila tekanan melebihi 15 PSI.
Bila tekanan kurang dari 15 PSI.
Apakah nama komponen yang berfungsi untuk menaikkan titik didih air radiator.......?
Pressure Cap.
Thermostat.
Water Pump.
Water temperatur.
Thermo pump.
Bila pressure valve yang berada pada tutup radiator terbuka, kemanakah kelebihan volume air radiator akan dialihkan........?
Reservoir tank.
Water jacket.
Oil cooler.
Water manifold.
Water coolant.
Berikut proses pengetesan kebocoran pada cooling system kecuali.......?
Buka dan lepaskan cap dari radiator.
Cucilah cap seals dan vacuum relief valve dengan menggunakan air.
Lepas cap di atas pressure test unit sesuai dengan arahan pabrik.
Tekan plunger pada test unit pump perlahan-lahan sampai pada ukuran tertinggi yang bisa dibaca di gauge.
Nilai ini harus berada dalam lingkup spesifikasi yang berlaku bagi cap yang sedang dites.
Untuk mengendalikan panas dari hasil pembakaran maka engine dilengkapi dengan......?
Exhaust Mufler.
Sistem pendingin.
Sistem pembuangan.
Sistem pemasukan.
Transfer temperatur.
Meneruskan tenaga putar dari crankshaft pulley untuk memutar fan dan water pump......Hal tersebut merupakan fungsi dari....?
Gear pump.
Fan belt.
Fan pulley.
Pulley belt.
Fan gear.
Untuk mentransfer panas dari dalam engine ke udara luar. Sistem ini dirancang untuk memindahkan panas dari engine dan mempertahankan engine pada temperatur operasinya yang paling efisien atau mencegah overheating...... hal tersebut merupakan proses kerja dari.....
cooling system.
Air induction system.
water Lubrication system.
Water transfer system.
Water Cooler system.
