A type of cable with a corrugated sheath that has a maximum bend radius of 7 times the cable diameter is __ Type MC Type SE Type AC Type NM

When used as an outside service -entrance conductor, SE cable must be secured every __ 12''(300mm) 18''(450mm) 24''(600mm) 30''(750mm)

EMOT-027 The windings in a three phase motor should have near equal resistance. True False

Which gauge would you use frequently every time you drive to make sure you are not going too fast? Odometer Trip meter Speedometer

The largest system that can be installed on 300 square feet of roof area using panels rated at 15W per square foot is: 4.5 kWh 3.0 kWh 1.5 kWh 0.3 kWh

In a grid-interactive PV system, which component converts direct current to alternating current? Battery Charge controller Panel Inverter

What is the panel operating temperature under Standard Test Conditions? 0^circ C(32^circ F) 10^circ C(50^circ F) 25^circ C(77^circ ) 35^circ C(95^circ )

Which of the following is true about fixed ladders? They must have safety devices if the ladder extends more than 18 feet above a surface. Each rung must be able to support 175 pounds. All safety devices must be activated within 2 feet of a fall. All safety devices must be activated within 4 feet of a fall.

Which of the following can be used to determine battery capacity? load test float test hydrometer specific gravity calculation

Which is the most common type of PV-array mounting system for sloped roofs? Rack mount Standoff mount Direct mount Flat mount

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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