Ques:- What is the difference between newtral earthing and body earthing?
Asked In :-
Right Answer: Neutral earthing connects the neutral point of a power system to the ground to stabilize voltage levels and provide a path for fault currents. Body earthing, on the other hand, connects the metal parts of electrical equipment to the ground to ensure safety by preventing electric shock.
Right Answer: A Bill of Quantity (BOQ) is a document that itemizes and quantifies the materials, labor, and costs required for a construction project. It serves as a basis for pricing and helps in the management and control of project costs.
Right Answer: The unit used for measuring compressor outlet flow can be CFM (Cubic Feet per Minute), M3/hr (Cubic Meters per Hour), or NM3/hr (Normal Cubic Meters per Hour), depending on the context and requirements.
Right Answer: The major purpose of choosing the type of casting—gravity, pressure, low pressure, or shell moulding—depends on factors such as the required precision, complexity of the part, material properties, production volume, and cost-effectiveness. Each method has its advantages suited for specific applications and requirements.
Right Answer: During my college days, I focused on my studies in electrical engineering, participated in various projects and group activities, and engaged in extracurricular activities like clubs and sports. I balanced my academic responsibilities with social events, which helped me develop teamwork and leadership skills. Overall, it was a time of learning, growth, and building lasting friendships.
Right Answer: The input of a control valve is the signal or command that determines how much the valve should open or close, typically from a controller or sensor. The output is the flow rate or pressure of the fluid that passes through the valve after it has adjusted its position based on the input signal.
Right Answer: Closing the discharge valve of a running centrifugal pump will cause the pressure in the pump to increase, potentially leading to overheating, cavitation, or damage to the pump if it continues to run without proper protection.
Right Answer: For caustic lines, use a Teflon diaphragm; for DM water lines, use a rubber diaphragm; for natural gas lines, use a metal diaphragm; and for oil lines, use a nitrile diaphragm.
Ques:- What is 43 and 53 grade of cement? that 43 & 53 represents what?
Asked In :-
Right Answer: 43 and 53 grade of cement refer to the compressive strength of the cement in megapascals (MPa) after 28 days of curing. Specifically, 43 grade cement has a minimum compressive strength of 43 MPa, while 53 grade cement has a minimum compressive strength of 53 MPa.
Right Answer: Hypoeutectoid steels contain less than 0.76% carbon and primarily consist of ferrite and pearlite, while hypereutectoid steels contain more than 0.76% carbon and primarily consist of cementite and pearlite.
Right Answer: In quantity surveying, 'zero value' refers to items or work that are included in a project but do not have a cost associated with them, often because they are not expected to incur any expenses or are accounted for in other ways.
