Explain the Precautions while handling Aviation Lubricants and Fuel. [40%].

What are the Quality checks you do on fuel before it is used on aircraft. Explain [40%]

[You can refer to the Books in Library and mention the books you referred to(20%)]

The radius of a circular truncated cone varies with x as R(x) = (r/L)(8L-0.5x). Determine the extension of the truncated con due to it's own weight in terms of E, L, r,and Y. Where E and Y are the modulus of elasticity and the specific weight of the material, respectively.

A pump is used to fill up a rectangular tank with liquid methanol solution (density 900 kg/m³ and dynamic viscosity 1.20 x 10^-3 Ns/m²) through a 2.5 inch diameter pipe. The tank is 1.4 m wide, 1.6 m long and 1.2 m deep.

1. Estimate the volumetric flow rate (m³/s) in the pipe if the pump can move the methanol at a rate of 80.6 L/min through this pipe.

2. Estimate the average velocity in the pipe (m/s) if the pump moves the methanol at a rate of 1.01 x 10^-3 m³/s.

3. Estimate the mass flow rate (kg/s) in the pipe if the pump moves the methanol at a rate of 1.69 x 10^-3 m³/s.

4. Estimate the time to fill the tank in minutes if the pump moves the methanol at a rate of 1.10 x 10^-3 m³/s.

5. Estimate the total mass (kg) of Methanol in the full tank.

6. Estimate the Reynolds number of the flow in in the pipe if the average velocity in the pipe is 0.84 m/s

what do you mean by the term ‘psychrometry’?

Please watch integrated tube production process from SANDVIK, a global manufacturer of stainless steel and alloy steels products on https://goo.gl/tjQzsP. a. Please identify the step by step processes to make steel tube product. b. Please explain the purpose of each of the process. c. Investigate the current step by step processes to make the steel tube and suggest any idea for improvement as detail as possible. Improvement can be in the forms of reduction on production time, reduction on defect product, reduction on energy consumption, reduction on step of processes, improvement on recyclability, etc.

why the United States was “asleep at the wheel during the early 1970s” soon leading to losses in competitiveness against Honda/Toyota/Sony. (Do not include wages)

1. List one advantage and one limitation of a hand pull-back.

2. List the 3 types of radiation emitted from welding processes and the eye damage each can cause?

3.

List the type of circular saw blade appropriate for each of these cutting tasks.

a.) all hard and soft wood for cross, rip or miter cuts

b.) cutting brass, aluminum and bronze

c.) crosscutting of veneers or shipboard

d.) cutting thin steel and sheet iron

4. What are 3 factors that influence the useful life of a respirator canister or cartridge?

UESTION 6

Two or more parts rotating in opposite directions create a __________.

The process of replacing a process to reduce exposure to a hazard is ___________.

The most hazardous type of woodworking machinery is_________?

Who may remove a lockout/tagout device?

The OSHA standard for control of hazardous energy sources (lockout/tagout) is 29 CFR 1910.______.

Moist air enters an air-conditioning system as shown in the figure below at T₁ = 28°C, ?₁ = 85% and a volumetric flow rate of (AV)₁ = 0.89 m³/s. At the exit of the dehumidifying section, the air is saturated, ?₂ = 100%, and the condensate leaves this section at the same temperature as the moist air. At the exit of the heating section the moist air is at T₃ = 24°C, ?₃ = 50%. The system operates at steady state, the pressure is 1 bar at all locations, and kinetic and potential energy effects are negligible.

Determine the heat transfer rate for the dehumidifying section, in kw

Assume that you have two cylindrical steel samples with 1 in diameter, one made out of AISI 1045 and another one made out of AISI 4140. You austenitize and quench both samples in oil. Then you cut a section and measure the hardness at the center of each sample. Would you expect to get the same results? Explain your answer.

A vapor-compression heat pump with a heating capacity of 500 kJ/min is driven by a power cycle with a thermal efficiency of 30%. For the heat pump, Refrigerant 134a is compressed from saturated vapor at -10°C to the condenser pressure of 10 bar. The isentropic compressor efficiency is 80%. Liquid enters the expansion valve at 9.6 bar, 34°C. For the power cycle, 80% of the heat rejected is transferred to the heated space.

(a) Determine the power input to the heat pump compressor, in kW (b) Evaluate the ratio of the total rate that heat is delivered to the heated space to the rate of heat input to the power cycle. Round answers to 3 significant digits.

Refrigerant 134a is the working fluid in a vapor-compression heat pump system with a heating capacity of 60,000 Btu/h. The condenser operates at 180 lbf/in.², and the evaporator temperature is 0°F. The refrigerant is a saturated vapor at the evaporator exit and a liquid at 110°F at the condenser exit. Pressure drops in the flows through the evaporator and condenser are negligible. The compression process is adiabatic, and the temperature at the compressor exit is 180°F. Determine

Round answers to 3 significant digits.

the following plastic and composite processing techniques explain the two manufacturing processes: 1- extrusion 2- blow molding.

Note: sketches are required and your explanation should include discussion about the process, tooling, products and materials.

The fatigue life of a component is 5 x 10⁵ cycles at 200MPa and 2 x 10⁵ cycles at 400MPa. If this component is subjected to the loading sequence: 100 cycles at 200 MPa and 100 cycles at 400 MPa, which repeats indefinitely, which one of the answers below is closest to the component’s expected fatigue life? Pick one answer only.

A. 2.86 x 10⁵ cycles

B. 2.93 x 10⁵ cycles

C. 3.23 x 10⁵ cycles

D. 3.52 x 10⁵ cycles