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The term ‘Green Economy’ was first coined in a 1989 report for the Government of the United Kingdom by a group of leading environmental economists, entitled Blueprint for a Green Economy.

(c) Increasing the mean radius of the friction disk. 

T_f ↑ = µWR_eff↑

Correct option is (B) 1.76 x 10^-7 T

B = \(\frac{\mu_0}{4\pi}\frac{M}{(r^2+l^2)^{3/2}}\)

B = \(\frac{10^{-7}\times0.75}{[(0.05)^2+(0.75)^2]^{3/2}}\) 

B = \(\frac{0.75\times10^{-7}}{[0.0025+0.5625]^{3/2}}\) 

B = \(\frac{0.75\times10^{-7}}{[0.565]^{3/2}}\) 

B = \(\frac{0.75\times10^{-7}}{0.424}\) 

B = 1.76 x 10^-7 T

A business where a seller a helps the buyer to finish some work, which cannot be seen or stored for example plumbing, teaching, hair dressing, etc., are is called as service-based businesses.

Given:

Marked Price = Rs.490

Discount on the Marked price = Rs.100

The gain in the overall transaction (Profit%) = 30%

Formulae Used:

Profit = [(SP – CP)/CP] × 100

Discount = SP – MP

Calculation:

Let the initial cost price of the article be Rs.x

Ram sold the article for a discount of Rs.100

Hence, the new SP = Rs. (490 – 100)

⇒ Rs. 390

Overall gain in the transaction = 30%

So, we get:

30 = [(390 – x)/x] × 100

⇒ 30x = 39000 – 100x

⇒ 130x = 39000

⇒ x = Rs.300

∴ The initial Cost Price of the article is Rs. 300

Hybrid business is a mix of product and service business.

Automobile Pollution and Its Control: 

Automobiles are said to be one of the major causes for atmospheric pollution at least in the metro cities. 

Main causes of automotive pollution: 

Poorly design and poorly maintained automobiles: 

You must have seen on roads a bus or truck or car or tempo releasing black smoke. This is because of poor maintenance of the vehicle.

Incomplete burning of fuel air mixture: 

Poorly maintained vehicle’s engine does not burn the fuel completely or properly. It can also happen because of improper mixture of air and fuel. Adulterated or poor quality of fuel: Petrol or diesel mixed with non-standard liquids/ substances increase the pollution. Excess use of clutch while driving: The habit of riding on clutch while driving increase the fuel consumption and increase the pollution. 

Its Control: 

Proper maintenance of automobiles along with use of lead-free petrol or diesel can reduce the pollutants they emit. Catalytic converters, having expensive metals namely platinum-palladium and rhodium as the catalysts, are fitted into automobiles for reducing emission of poisonous gases. As the exhaust passes through the catalytic converter, unburnt hydrocarbons are converted into carbon dioxide and water. Also, carbon monoxide and nitric oxide are changed to carbon dioxide and nitrogen gas, respectively. Motor vehicles equipped with catalytic converter should use unleaded petrol because lead in the petrol reduces effectiveness of the catalyst. 

Good driving habits: 

It reduces the pollution by reducing the fuel consumption.

Open the shopping site, from where you want to shop online. login with your username and password 

You can select the products that you wish to buy and add them to your shopping cart. Having selected your products, you can view what you have selected and the total amount to be paid by you. 

We may delete any product from the shopping cart, or proceed for payment. 

Read the terms and conditions before making the payment.

Correct option: d) Worm and nut with Re-circulating ball

ECM stands for Electronic Control Module.

It has several important functions which are as follows: 

a. It operates the starting motor, ignition system, electronic fuel injection, and other electrical devices for the engine during cranking and starting.

b. It supplies all the electrical power for the vehicle accessories whenever the engine is not running or when the vehicle’s charging system is not working.

c. It acts as a stabilizer of voltage for the entire automotive electrical system. 

d. It stores energy for extended period of time.

Steps:

a. Obtain the correct replacement filter: It should be the same as the one you will replace. Consult your vehicle service manual or auto parts store if you need assistance finding the right part.

b. Secure the vehicle: Park the car on level ground and apply the parking brake. Shift into first gear (manual transmission) or Park (automatic transmission) and turn off the ignition.

c. Open the bonnet (hood): Release the bonnet with the lever inside the car. Move the exterior bonnet catch for final release. Lift the bonnet and secure it with the prop rod.

d. Locate the air filter: Air filter is located on the top of engine.

e. Remove the air filter cover: Loosen the hose clamp that seals the air conduct. Undo all the screws holding the air filter cover. Some models have wing nuts, other air filters are just clamped on with a quick release system. Keep screws and other parts together and in a safe location so you can find them later. Pull the cover out of the air conduit and lift it up so it comes off the lower part of the housing.

f. Take out the air filter: Now you can see a round or rectangular filter made of cotton, paper or gauze. Filters have a rubber rim that seals off the unit's interior. Simply lift the filter out of the housing.

g. Clean the air filter housing: Connect the air hose to the compressor and use the compressed air to blow out the dust, or use a vacuum cleaner to suck up any dirt. Seal the air conduit with removable adhesive tape. It only takes a minute and that way you won't get any dirt into the engine whilst cleaning.

h. Replace the filter: Replace the old filter with a new one. Simply insert it into the housing with the rubber rim facing up. Make sure the edges are sealed by the rubber rim.

i. Replace the cover: Carefully insert the cover back into the air conduit and then press the entire piece down onto the lower half of the air filter unit. Make sure it's on straight and securely, otherwise you could alter the engine’s performance.

j. Tighten all the screws or clamps: recheck that you have put everything firmly back together by rocking the unit gently with both hands.

k. Shut the bonnet securely.

Correct option: d. Tungsten

1) More torque can be put through the shaft 

2) Can be used on longer Vehicles Without the whipping effect

Correct option: a. Battery is full charged

1. A grease nipple is provided on the slip joint for lubricating (greasing), but before greasing ensure that the parts are thoroughly cleaned, 

2. According to recommended interval by the manufacturer it should be lubricated (10000 km of run or yearly or once in a year)

Engine control Module

Correct option: a. Temporary fasteners

a. 0 – 2°

The amount of camber is generally kept between 0 – 2°.

Answer is (b) It comes out with the CO2 during exhalation 

Correct option: d. Tungsten

Correct option: c. Track Rod 

Correct option: c. it has smaller sag

(c) increase during day and decrease during night 

W HYDROGEN BOMB.

(b) CO2 in atmosphere → organic carbon in plants → organic carbon in animals → inorganic carbon in soil

Correct option: b. Brass Rivets

A barn is a unit of AREA.

 ASTRONOMICAL UNITS 

A TERAMETER is the longest.

Spark plug cleaner and tester operates on 220V AC power source. (420V/220V).

• Start with the light switch 
• Check with your power company to see if you’re paying for outdoor lighting.
• Consider replacing outdoor lights with intelligently designed, low- glare fixtures. 
• Place motion sensors on essential outdoor lamps. Replace conventional high-energy bulbs with efficient outdoor CFLs and LED floodlights. 
• Reduce the use decorative lighting. 
• Use of covered bulbs that light facing downwards. 
• The use of automatic systems to turn off street light at certain times. 
• Have all information arid facts about light pollution. 
• Use of glare-free bulbs, installing low hanging bulbs, having the lights facing downwards, and covering the bulbs to reduce bright skies at night. 
• Share with family and friends.

These tools are special in nature and does the special purpose work. Use of these tools makes work easy and save time.

Construction of Spark Plug Cleaner:

A push button is located on the body of the equipment is pushed to supply ignition voltage to the spark plug during gap test. Air valve control, is a wing type handle on the top of the equipment and “Air” is marked on it. This valve control has three positions “OFF”, “AIR” and “SAND”. This control is used to control the flow of air and sand during sand blast cleaning of spark plugs. One needle valve is located to increase or decrease the air pressure during spark test by rotating it anti clockwise and clockwise respectively. Pressure gauge is provided on the equipment to record the pressure applied during the spark plug gap test. Mirror, a metal mirror is mounted at an angle to the rear of the plug test opening, is used to observe the action of the spark during the gap test. Adaptor and gasket are provided to install different size spark plugs in the test opening. Gap gauge, is provided for the purpose of checking and adjusting spark plug gaps.

Working of Spark Plug Cleaner:

Connect the air line from 125-150 psi air supply to the rear of the air control valve. Ground the equipment properly otherwise the spark gap test won’t be up to the mark.

a. Sandblast Cleaning: clean the spark plug of any excess oil or water and insert in the opening. With the left hand, turn air control valve to “sand” position. Oscillate outer end of the plug with a circular motion, so that cleaner blast can penetrate all crevices, for about 5 seconds. Without removing plug from the opening, turn valve to “Air” position and again oscillate plug for a few seconds to clean out all particles of loosened carbon. Return the air valve to “off” position and remove the cleaned plug. Shake out any particle of abrasive remaining between plug porcelain and shell.

b. Gap Testing: Adjust gap of the old plug and screw old plug in the openings. Clip high tension lead to the plug to be observed. Regulate air pressure to correct amount for plug being tested. Press the test button, gradually opening needle valve until the pressure has been around 20psi above normal. While pressure is being increased, observe action of the spark in the mirror to see if the spark remains bright and steady, without flickering or missing.

1. Plants in the pot grows in limited soil. If soil is not changed regularly it will become infertile. 

2. Due to excessive growth of roots it come out of pot from drain holes and starts growing in land breaks the pot. Therefore it is necessary to change the pot at regular interval

Correct option: c) Manual

b. 151 psi to 1,000 psi

Medium-pressure compressors, which have a discharge pressure of 151 psi to 1,000 psi.

Employees or Workers

Select Tools menu > Protect document Choose whether to protect Sheet or Document.

The first automatic car washes appeared in the late 1930s.