NOCTI EXAM QUESTIONS WITH 100% CORRECT ANSWERS 2024/2025 (GRADED)

How much does one gallon of water weigh? 8.3 pounds Nonferrous metals does not contain any iron Which of the following is a ferrous metal? mild steel Properties of common materials are divided into the following categories: physical, mechanical, thermal, electric, and acoustic solid Tensile strength is the resistance a metal has to being pulled apart ... ALL NOCTI EXAM QUESTIONS WITH 100% CORRECT ANSWERS 2024/2025 (GRADED) A typical form of mechanical stress is overload Which of the following tests is nondestructive? vibration analysis The ability of a metal to withstand shock loading is known as its toughness Steel reinforcing bars are added to concrete to resist the force of tension Tungsten is a metal with the physical properties of high strength and good electrical conductivity Which of the following adversely effects the strength of materials? corrosion Pneumatic fluid power can deliver linear and forms of motion rotary Gauge pressure at sea level is 0 psi A coil surrounding an iron core, to which voltage has been applied, is a/an electromagnet Use a to determine hydraulic pressure pressure gauge A is a pictorial representation of a process, using a variety of symbols connected by lines and arrows process flow chart How many ports are in a two-way valve? 2 The relationship of force, pressure and piston area in an air cylinder is represented by ( ) force = (pressure) X (area) When energized, a solenoid actuates upon which of the following? steel A solenoid works on the principle of electromagnetic force pneumatic directional control valves are, many times, sized for convenience of piping; however, a more efficient method is to size according to flow coefficient An engineer has connected an oscilloscope to measure the output of a standard wall electrical outlet. The oscilloscope shows a 60 hertz sine wave measuring 120 volts. This signal is analog The worst enemy of a pneumatic system is contamination A specialized schematic used to document industrial control logic systems is a ladder diagram The flow through a flow control valve will increase with increase with an increased orifice or throat size In a fluid system, fluid encounters more when it travels long distances resistance The relationship of force, pressure, and piston area in an air cylinder is represented by force = pressure x area A photo detector converts light to a/an signal electrical Fluid in a hydraulic system is basically not compressible In fluid resistance systems, resistance is affected by the of the pipe diameter To determine pressure in a hydraulic system, the total force by the area on which it acts divide The purpose of a hydraulic system is to transform mechanical energy into hydraulic energy Atmospheric pressure at sea level is 14.7 psi Increasing a flowing liquids viscosity or friction, or changing flow direction, will result in velocity increase The formula for force of a hydraulic cylinder is (4 words) pressure multiplied by area If containments block a system, the first place the blockage occurs is in the suction side of a systems pump The speed of a pneumatic cylinder is affected mainly by compressibility of air A network interface card (NIC) on a computer is receiving a series of pulses measuring +5 volts DC then alternating back to 0 volts. The +5 volt signal is referred to as high Compared with hydraulic systems, pneumatic systems provide inexpensive material, faster operation and a non-hazardous medium A photo diode emits light when a current passes through it The relationship between gauge and absolute pressure is ( ) gauge pressure = (absolute pressure) - (atmospheric pressure) When installing a new three-way pneumatic valve, a technician, should attach ports A and B to the pneumatic cylinder Typical pressure gauges will read at atmospheric pressures 0 psi A switch opens automatically when the current exceeds a predetermined safety level limit The main advantage of drilling on the vertical mill rather than the drill press is that holes can be more accurately located and spaced The technician should use a to cut a keyway in a shaft milling machine The most accurate way to cut square metal steel tubing is to use a/an horizontal band saw The best use for a chasing die is to recut damaged threads Undercutting is a condition that generally occurs when the welding current is too high Abrasive cutoff saws penetrate material by grinding, which makes them valuable for cutting extremely tough or hardened material The code details welding requirements AWS Use to join a nut to sheet material arc welding When milling aluminum, set the mill at RPM speed high The code defines requirements when joining metals using the MIG (magnesium inert gas) process AWS The acronym, OEM, refers to original equipment manufacturers While the use of automated production and assembly systems in product manufacturing is well known, such work is still predominately accomplished manually by human operators A structural engineering company is designing a new stadium. The company has hired specialists to design the video and sound system, parking lot, and playing surface. The specialists are referred to as sub contractors Which statement best describes precision alignment? it projects shaft rotational centers in a straight line