Doclaura

What is the difference between a cultivar and variety? - ANS Cultivar- A plant or grouping of plants selected for desirable characteristics that can be maintained by propagation Variety- A naturally occurring subgroup of a species which has some distinguishing characters Who is Linnaeus? What system of naming plants did he create? - ANS Linnaeus is a Swedish Botanist who developed the Binomial System of Nomenclature(Genus + Species) Why is it important to know common and...

If a stuffing box is to prevent the ingress of air, it is equipped with: Choose one answer. a. A vacuum breaker b. A seal cage c. A bushing d. A thrust collar e. An anti air siphon - ANSb Pump priming is: Choose one answer. a. Done to centrifugal pumps with positive suction head b. Done with the suction valve open c. Filling the pump with gas d. Done with the suction and discharge valve closed e. When the pump is partially filled with vapour - ANSb Proper prim...

A UPS is compromised of a battery bank, __________, an inverter and a transfer switch - ANS receiver Determine the speed of a synchronous motor operating with a line frequency of 60 Hz where the motor has 4 poles - ANS 1800 rpm A moving conductor is at an angle of 90 degrees within the magnetic field - ANS voltage generated will be at its maximum A___________ breaker is used to maintain power, to a switch board main bus, via an alternate power supply - ANS ...

The atom is the smallest unit of a pure substance and is also known as a(n): a) Molecule b) Compound c) Electron d) Element e) Proton - ANS d) Element [[Remember to follow DreadedLlama on Instagram, Twitch, and Twitter ^^!]] A basic law of electricity is: a) Ohm's Law b) Charles Law c) Boyles Law d) Unlike charges attract, like charges repel e) Do not touch live wires - ANS d) Unlike charges attract, like charges repel [[Remember to follow DreadedLlama o...

The operator interface unit allows the operator to monitor process conditions and manipulate set points of the process operation. The operator interface unit is located in a central control room. From this location the operator can: 1. View information transmitted from the processing area on an output device such as a video monitor. 2. Start the process. 3. Change control conditions from input devices such as a keyboard, mouse or touchscreen. 4. Light boilers and Heaters. a. 1 b. 1, 2 c. ...

e - ANS Resistance: 1. Limits current flow. 2. Depends on material. 3. Depends on temperature. 4. Depends on dimensions. a. 1, 3, 4 b. 1, 2, 3 c. 1, 2, 4 d. 2, 3, 4 e. 1, 2, 3, 4. d - ANS Conductive materials: 1. Gain resistance while temperature rises while others lose resistance. 2. Have no resistance change with temperature change. 3. Always have resistance changing directly with temperature. 4. Can vary resistance directly or inversely with temp...

why was the ASME formed? - ANS develop tech info, high standard of design and education, personal and professional development,ethical conduct, solutions for tech problems CSA B51 committee? - ANS provincial and territorial jurisdiction, boiler manufacturers, insurance companies what is the purpose of B52? - ANS provide safe design, construction, installation, operation, repair of refrigeration and air con. promote uniform requirements ASME 1 - ANS aspec...

Improper drainage of steam lines could cause: a. Water hammer b. Excessive weight to the pipe c. Low pressure in the lines d. Excessive steam pressures - ANS a A bellows corrugated expansion joint is suitable for pressures up to approximately _______ kPa: a. Unlimited b. 500 c. 1000 d. 2000 - ANS d For a given nominal pipe size, as the wall thickness of the pipe increases, the: a. Bore of the pipe increases b. Weight of the pipe decreases c. Outside diamete...

Improper drainage of steam lines could cause: a. Water hammer b. Excessive weight to the pipe c. Low pressure in the lines d. Excessive steam pressures - ANS a A bellows corrugated expansion joint is suitable for pressures up to approximately _______ kPa: a. Unlimited b. 500 c. 1000 d. 2000 - ANS d For a given nominal pipe size, as the wall thickness of the pipe increases, the: a. Bore of the pipe increases b. Weight of the pipe decreases c. Outside diamete...

What is a Back weld? What is Backing? - ANS Back weld: A weld applied to the back side (root side) of a single groove weld AFTER the main weld has been completed. Purpose of this weld is reinforcement and fills where the main weld did not penetrate Backing: Applied to the back side of a single groove weld BEFORE the main weld is started. Its purpose is to fill the root opening and prevent melt through What is the purpose of Surfacing welds? - ANS - To increase the thickness o...

Select one: a. Peterʼs Paradox b. Pascalʼs Paradox c. Pandaʼs Paradox d. Peristalticʼs Paradox - ANS b The head required to overcome friction and develop velocity is called: Select one: a. friction head b. velocity head c. dynamic head d. static head - ANS c The total height a liquid is moved by a pump plus the total discharge pressure head if pumping into a pressurized vessel is called: Select one: a. total dynamic head b. total static head c. total suc...

Impulse turbines: Choose one answer. a. are only used with low pressure steam b. require large thrust bearings c. were invented by Parsons d. have large pressure drops across the huckets e. have blades with the same steam inlet and outlet angles - ANS e Shaft sealing carbon glands are: Choose one answer. a. Lubricated by the main oil pump b. Limited to a temperature of 250°C c. Replaced monthly due to erosion d. Self-lubricating e. Sprayed with Monel - ANS ...

(4-011-1.3) A wheel and axle has a mechanical advantage of 10. Calculate the diameter of the axle if the diameter of the wheel is 30cm. Select one: a. 3 cm b. 3.3 cm c. 6 cm d. 15 cm - ANS a (4-014-3.4) A 68.5kg object is at rest at a height of 65m above the earth's surface. What is its kinetic energy? Select one: a. 4.45 kJ b. 4.37 kJ c. 34.25 kJ d. 0 kJ - ANS d (4-013-2.1) A car accelerates uniformly from rest to 6.1 m/s in 40 seconds. It continues at this ve...

Flow is proportional to: Select one: a. the square root extractor b. pressure differential c. the square root of the temperature differential d. the square root of the pressure differential e. a constant head - ANS d A capillary is the name given to: Select one: a. the bulb holding the fluid of a filled thermometer b. the line attached to the measuring junction of a thermocouple c. a tube with a small uniform bore d. the key part of a thermistor e. a unit used only in refr...

The Second Law of Thermodynamics states that in order to transfer heat from a colder substance to a hotter substance, _________ must be supplied. Select one: a. Internal energy. b. External work. c. Intense energy. d. Mechanical refrigeration. e. Physical labour. - ANS B Which one of the following methods is a method of ensuring uniform steam distribution in steam coils? Select one: a. Installation of distributing plates within the steam header b. Controlling the face velocit...

(4-096-1.1) Large areas, such as warehouses, are usually heated by: Select one: a. Unit heaters b. Radiators c. Convectors d. Open heaters e. Space heaters - ANS a (4-019-3.8) How much heat must be supplied to 200 kg of water at 20°C to make steam at 850 kPa abs and 87% dry? Select one: a. 2039.4 kJ b. 407 880 kJ c. 1774.28 kJ d. 424 627.98 kJ e. 484 507.6 kJ - ANS e (4-018-2.6) Convert -6°C to °F. Select one: a. 30.4°F b. 28.5°F c. 21.2°F d. 18.6°F ...

The reciprocating motion of a steam engine is converted to rotary motion: Choose one answer. a. At the end of the piston stroke b. In the steam cylinder c. By the camshaft d. At the crankshaft e. By the valve gear - ANS d Which of the following is a prime mover ? Choose one answer. a. An electric generator b. A gas turbine c. A centrifugal pump d. An air compressor e. A boiler - ANS b The term "prime mover" refers to: Choose one answer. a. All...

This type of maintenance involves unplanned and unscheduled events: Select one: a. emergency b. projects c. routine d. preventative - ANS a Sectioning symbols can be used to indicate various: Select one: a. fittings b. frequencies c. materials d. sizes - ANS c The first letter on a P&ID instrumentation symbol stands for the: Select one: a. instrument type b. measurement type c. vessel type d. pipe line type - ANS b When asked to complete a task over the rad...

A centrifugal pump consists of: Choose one answer. a. An impeller surrounded by a casing b. A piston moving back and forth in a cylinder c. Gears rotating in a housing d. Sliding vanes e. A pulsating disc - ANS a A volute type pump: Choose one answer. a. Is a positive displacement pump b. Has a progressively expanding spiral casing c. Reduces the velocity in the discharge nozzle d. Is more costly than diffuser pumps e. Is a regenerative type pump - ANS ...

(4-096-1.1) Large areas, such as warehouses, are usually heated by: Select one: a. Unit heaters b. Radiators c. Convectors d. Open heaters e. Space heaters - ANS a (4-019-3.8) How much heat must be supplied to 200 kg of water at 20°C to make steam at 850 kPa abs and 87% dry? Select one: a. 2039.4 kJ b. 407 880 kJ c. 1774.28 kJ d. 424 627.98 kJ e. 484 507.6 kJ - ANS e (4-018-2.6) Convert -6°C to °F. Select one: a. 30.4°F b. 28.5°F c. 21.2°F d. 18.6°F ...