What is the function of tire? Tires are designed to support the weight of the vehicle, absorb road shocks, transmit traction, torque and braking forces to the road surface and maintain and change the direction of travel. To fulfill these four basic functions tires are made of resilient rubber and filled with compressed air. What […]
What is meant by reliability of a test?
What is meant by reliability of a test? The reliability of test scores is the extent to which they are consistent across different occasions of testing, different editions of the test, or different raters scoring the test taker’s responses. How do you define reliability requirements? There are four basic ways in which a reliability requirement […]
What metal is the least conductive?
What metal is the least conductive? mercury Which is more conductive steel or aluminum? Brass is only 28% as conductive as copper. Some bronzes are as low as 7% as conductive as copper! Copper is the standard by which electrical materials are rated and conductivity ratings are expressed as a relative measurement to copper….Electrical Conductivity […]
What do you do if your gas pedal is jammed?
When a disconnecting means must be located within sight from a motor the disconnect must be visible and not more than ___ ft from the motor?
When a disconnecting means must be located within sight from a motor the disconnect must be visible and not more than ___ ft from the motor? 50 ft Can you lock a disconnect in the on position? Question: Can the disconnect switches be locked in the closed (on) position? Response: There is no provision in […]
Why is bitumen used in road construction?
Why is bitumen used in road construction? Asphalt road surfaces are also considered a sustainable option for road paving material where bitumen is used as binder as this material can be recycled. The bitumen, produced by the refineries, plays an important role in road durability which is also important for sustainability. What is the purpose […]
What happens to the potential energy of a ball that is dropped from a height?
What happens to the potential energy of a ball that is dropped from a height? When a tennis ball is dropped from 2 m, it possesses a certain amount of gravitational potential energy because of its mass and its height above the ground. As the ball falls, that energy is converted to kinetic energy. How […]
What are the objectives of concrete mix design?
What are the objectives of concrete mix design? The main aim of the concrete mix design is to find out the desired proportion of each ingredients which are cement, coarse aggregate, fine aggregate, water etc. to obtain the required properties of resulting mix. What is class B concrete used for? at 28 Days psi Class […]
How does a cooling tower system work?
How does a cooling tower system work? Cooling tower systems work by using water to extract waste heat from a system and ejecting it into the atmosphere primarily through evaporation. The three key components of a cooling system are the cooling tower, recirculating pump, and heat exchanger. Water first passes through a heat exchanger where […]