Technician A says that diamonds indicate a component that conditions fluid in the circuit, such as a filter or heat exchanger. Technician B says that dashed lines indicate a return or exhaust circuit. Who is correct? a. Both b. Neither c. Technician B d. Technician A

Technician A says that a circle symbol on a hydraulic schematic can represent a hydraulic pump.Technician B says that a circle symbol on a hydraulic schematic can represent a hydraulic motor. Who is right? a. Technician A only b. Technician B only c. Both Aand B d. Neither Anor B

In a economizer system,the enthalpy control is used to measure: A. moisture content. B. humidity of ambient air. C. outside air temperature. D. both temperature and moisture content.

Arc cutting is a very simple process. T/F A True B False

Oxy-fuel torch components are interchangeable between different manufacturers or models. T/F A True B False

Which of the following is true of a SMAW electrode holder and NOT of an Air Carbon Arc specialized electrode holder? A The lower electrode jaw has a series of air holes. B The jaw has more than one electrode-locating groove. C The electrode jaw can pivot. D There is NO air valve on the handle.

Plasma arc cutting may use water in the process. T/F A True B False

When an air conditioner with a thermostatic expansion valve installed is overcharged, the excess charge should be removed by recovering some charge and checking: A. system pressures. B.superheat. C. subcooling. D. head pressure.

What will refrigerant oil in a hose cause when a technician is checking the pressures in an operation system with a manifold gauge set? A. All readings on that gauge will increase in value. B. All readings on that gauge will decrease in value. C. All readings on that gauge will not be affected. D. The gauge will read 0 psig.

In an ergonomically correct workstation, your keyboard should be positioned to keep your wrists as straight as possible.Arms should be positioned at a __ degree angle. 25 30 45 50

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Question Three (a)A water heater is to be installed in a bathroom Specify the; (i)Mounting height for its switch. (02 marks) (ii)Rating current for its protective device. (iii)Size of the cable to b e used for its installation. (02 marks) (b)If the supply of the water heater in 3(c a), is from a two-way consumer's unit.draw it's; (02 marks) (i)Block diagram. (06 marks) (ii)Wiring diagram. (08 marks) Question Four You have been given a task to install earthing system in a new building As a trained technician; (a)List four factors you will consider when selecting a site for the above installation. (b)Describe two methods you will use to improve the conductivity of the earthing. (04 marks) (04 marks) (c)Name four materials and two tools you will need to carn out the task. (06 marks) (d)Explain a step -by-step procedur e you wil I follow to carry out the task. (06 marks) Question Five (a)Define the following terms as applied to lightning protection. (i)Down conductor (02 marks) (ii) Air termination (02 marks) (iii)Test ioint (02 marks) (iv)Zone of protection (02 marks) (b)Identify four types of buildings which require protectior from lightning. (c)with the aid of diagram show the zone of protection offered by two vertical lightning protection system. (08 marks) (04 marks)

Chain slings cannot be damaged by heat. True False

During welding preparations what should be set up around the welding area? are blowers flash shields cotton curtains oxygen cylinders

Before engaging the PTO switch you should make sure that the controls are in neutral position. True False

What is a benefit of a grounded electrical system for workers? A. It prevents power outages in the building B. It eliminates the risk of electrical shock entirely C. It provides a safe path for current to flow in case of a fault, reducing the risk of shock D. It allows workers to touch live wires without harm

What is the minimum sire standard main breaker required for a farm building service where the expected simultaneously operated load is 118 amperes? 90 amperes 100 amperes 110 amperes 125 amperes

What is a potential hazard when working with electricity? A. Improved productivity B. Increased employee satisfaction C. Electrical shock D. Faster project completion

When you add radiator fluid to the reservoir,how full should it be? Select the correct answer and click Submit. ) Up to the "Full"mark Up to the very top of the reservoir Up to the "Add"mark

Where is the transmission dipstick normally located on a rear-wheel drive vehicle? Select the correct answer and click Submit. At the rear of the engine near the firewall Directly above the steering column and in the middle of the engine At the front of the engine

What is one factor that can wear out your vehicle's belts and hoses? Select the correct option and submit. Consistent temperatures Dirt and debris Humidity Too much cleaning