Which of the following compressed gases in a cylinder tends to be the most dangerous in the event of a fire? a. Oxygen b. Acetylene c. Propane d. Argon

Goggles or other suitable eye protection must be used for flame cutting. T/F A True B False

1. What change did you make to your rocket and why?

When attempting to supprises a Class C fire in a chassis, which of the following is good practice? a. Disconnect the batteries. b. Use a carbon dioxide fire extinguisher. c. Avoid inhaling the fumes produced by burning conduit. d. All of the above

What type of gloves are recommended by some shops when working with heavy suspension components? a. Synthetic rubber b. Vinyl disposable c. Leather welding gloves d. Gloves should never be worn when working with suspension components.

According to ANSI/ACCA Manual D, when balancing dampers are used, what is their preferred location in a duct system to reduce noise? A. In the last run of duct and close to the supply registers B. Near the trunk duct takeoff C. Halfway between the branch connections and the registers D. At the registers for ceiling supplies and at the branch connections for wall supplies

Which of the following is a proper operation for a packaged air conditioning system using an electronic control board? A. The blower condenser fan, and the compressor all come on at the same time B. The condenser fan and compressor come on first. The blower cycles intermittently C. The compressor comes on first. The blower and condenser fan come on last D. The condenser fan and blower come on first. The compressor cycles as needed

An accumulator drawing with a triangle pointed downward in the top half represents what type of accumulator? a. Spring loaded b. Weighted c. All of the above d. Gas charged

21.o Technician A says that a diamond symbol represents a reservoir or cylinder.Technician B says that a rectangle represents a fluid conditioning device like a filter. Who is correct? 22. 0 a. Both 23. b. Neither 24. c. Technician B 25. d. Technician A

Which of the following indicate a return or exhaust circuit? a. dotted lines b. squares C. arrows d. stars

Hot Questions

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