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30 Cards in this Set
- Front
- Back
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tension,compression,bending and twisting are kinds of mechanical:
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force
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an electric motor that is connected to an overhead crane lifts stacks of reinforcement rods.each stack of rods weighs 3,000 Newtons. how much work is done by the motor if it lifts 5 stacks of rods 50 meters.
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750,000 joules
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a battery-powered winshiled whiper motor is activated for 10 secs.and draws a current of 5 amps at a voltage of 12 volts. the total amount of charge moved is ?
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50 coulombs
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when useing type "E" thermocouples in laboratory experiments, what reference temperature charts.
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100 degrees celsius
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in the si system, temperature difference is expressed in :
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degrees celsius
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one microampere equals?
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1*10^-6amperes
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one ampere equals?
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one coulomb per second
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a toaster element produces 2000 btus of heat energy in 30 min. what is the heat-flow-rate
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66 btus per hour
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a calori is a unit of work?
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specific heat
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the specific heat of water is
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one calorie per gram cesius
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type "E" thermocuples are made from
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constantan and chromel
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heat flow rate is represented by
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Qh
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the heat capacity of 10 pounds of water is
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10 btus/Fahrenheit
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a rate associated with a fluid system is
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a "volume or mass" flow rate
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fluid flow rate units such as "kg per min" or "gm per sec." are units of :
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mass flow
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a toilet leaks 1 gallon of water every 20 min. Approximately how many gallons will be lost in a month
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1660
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if a faucet leaks causing a water loos of 120 gallons in two days, what is the volume-flow rate of the leak
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3.0 gal/hour
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a bath tub faucet drips 200 gallons in ten days. how many gallons will have been lost in 46 days ?
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920 gallons
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a letter definition,or equation, for linear speed is :
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V=L/t
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which of the following is associated with a rotational rate?
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the shaft of an electric drill
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negative acceleration is also referred to as
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a deceleration
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the term RPM refers to :
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revolutions per min
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which of the following is associated with linear rate:
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buck shot fired from a gun
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in the english system of units, ft/sec^2 indicates a unit for :
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measuring acceleration
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a vector must have
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magnitude and direction
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angular rate is expressed in which terms
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radians per sec.
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production rate is the
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number of items produced per unit of time
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the negitive sign in front on an acceleration would indicate the object
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decelerating
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given : Rf=deltap/Qv
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deltap=Rf x Qv
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which of the following has the greatest viscosity?
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motor oil
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