Description : A system weighing 2kN. Determine the force that accelerate if to 12 m/s^2. a. vertically upward when g = 9.7 m/s^2 A. 4474.23 N B.5484.23 N C.4495.23 N D.5488.23 N Formula: F = m/k (a +g)
Last Answer : 4474.23 N
Description : A car whose mass is 2 metric tons is accelerated uniformly from stand hill to 100 kmph in 5 sec. Find the driving force in Newton’s. a. 11,120 N b. 11,320 N c. 11,420 N d. 11520 N formula: F= ma / k
Last Answer : 11,120N
Description : Refer to problem # 11. Determine the force that accelerates if to 12 m/s^2. horizontally along frictionless plane. A. 2474.23 N B. 2574.23 N C. 3474.23 N D. 2374.23 N Formula : M = wk / g F = ma /k
Last Answer : 2474.23 N
Description : How much does an object having the mass of 100kg weight in newton. a. 981 N b. 991 N c. 981.6 N d. 980.1N F = ma
Last Answer : 900,000lb/hr;625 ft/s981 N
Description : A bayabas falls from a branch 5m above the ground with what speed in meter per second does it strike the ground assume g = 10m/s². a. 11m/s b. 12m/s c. 13m/s d. 10m/s ∫KE = mV2/2gc
Last Answer : 10m/s
Description : Water flowing at a 6m/s through a 60 mm pipe is suddenly channeled into a 30 mm pipe. What is the velocity in the small pipe? a. 34m/s b. 24m/s c. 15m/s d. 27m/s
Last Answer : 24m/s
Description : A System has a temperature of 250°F. Convert this Value to °R? a. 740°R b.730°R c. 720°R d. 710°R formula: °R= °F + 460
Last Answer : 710°R
Description : A wall of the firebrick has an inside temperature of 313ºF and an outside temperature of 73ºF. What is the difference in the surface temperature in Rankin? a. 70 b. 68 c. 72 d. 94 ºR = ºF + 460
Last Answer : 70
Description : 3.0 lbm of air are contained at 25 psia and 100 ˚F. Given that Rair = 53.35 ft-lbf/lbm- ˚F, what is the volume of the container? A.10.7 ft^3 B.14.7 ft^3 C.15 ft^3 D.24.9 ft^3 Formula: use the ideal gas law pV = mRT T = (100 +460) ˚R V = mRT/p
Last Answer : 24.9 ft^3
Description : A mass of 5kg is 100m above a given datum where local g = 9.75 m/s2 . Find the gravitational force in newtons. (Formula: Fg= mg/k ) a. 48.75 N b. 50 N c. 45 N d. None of the above
Last Answer : 48.75 N
Description : From1961-1964 John fairclough’s research played an important role to pursue full range of compatible computers as system: a. System/360 b System/460 c. System/560 d. System/780
Last Answer : a. System/360
Description : “If the temperature o f a fixed quantity of a gas is held constant during a change of state, the volume varies inversely with the absolute pressure. a. Charle’s Law b. Boyle’s Law c. Dalton’s Law d. Amagat’s Law
Last Answer : Boyle’s Law
Description : Calculate the power output in horsepower of an 80-kg man that climbs a flight of stairs 3.8 m high in 4.0 s. a) 744.8 hp b) 0.998 hp c) 746 hp d) 1.998 hp Formula: Power = Fd/t = mgh/t F = W = mg d = h
Last Answer : 0.998 hp
Description : The SI unit of pressure a. Pa b. N c. J d. None of the above
Last Answer : Pa
Description : The SI unit of mass a. kg b. g c. N d. None of the above
Last Answer : kg
Description : How many Newton’s (N) in 900,000 dynes? a) 8 Newton’s b) 9 Newton’s c) 7 Newton’s d) 6 Newton’s Formula: 1Newton (N)=100,000dynes
Last Answer : 9 Newton’s
Description : Two masses, one of the 10kg and the other unknown, are placed on a scale in a region where g = 9.67 m/sec2 . The combined weight of these two masses is 174.06 N. Find the unknown mass in kg. a. 20 kg b. 19 kg c. 18 kg d. 17 kg formula: m=Fg k / g
Last Answer : 18 kg
Description : A 600kg hammer of a pile driver is lilted 2m the pilling head. What is the change of potential energy? If the hammer is realest. What will be its velocity and the instant if it sticks the pilling? a. 10,772 N-m and 5.26m/s ... c. 11,772 N-m and 6.26m/s d. 11,77 2N-m and5.26m/s ∫PE = mgo(∫Z)/gc
Last Answer : 11,772 N-m and 6.26m/s
Description : A 30-m vertical column of fluid (density 1878 kg/m3 ) is located where g= 9.65 mps2 . Find the pressure at the base of the column. (Formula: pg= gρhg/k ) a. 543680 N/m2 b. 543.68 kPa (gauge) c. Both a & b d. None of the above
Last Answer : Both a & b
Description : Find the pressure due to a column of mercury 74.0 cm high. a. 91.80 x 10^3 N/m^2 b. 73.56 x 10^2 N/m^2 c. 9.86 x 10^4 N/m^2 d. 87.2 x 10^4 N/m^2
Last Answer : 9.86 x 10^4 N/m^2
Description : The unit “pascal” is equivalent to ______. A. N/m^2 B. N/m C. N-m D. N-m^2
Last Answer : N/m^2
Description : The value of 1 mm of Hg is equal to A. 1.333 N/m2 B. 13.33 N/m2 C. 133.3 N/m2 D. 1333 N/m2
Last Answer : Answer: C
Description : If the value of n = 0 in the equation pvn = C, then the process is called A. constant volume process B. adiabatic process C. constant pressure process D. isothermal process
Description : Molecular volume of any perfect gas at 600 x 103 N/m2 and 27°C will be (a) 4.17m3/kgmol (b) 400 m3/kg mol (c) 0.15 m3/kg mol (d) 41.7 m3/kg mol (e) 417m3/kgmol.
Last Answer : Answer : a
Description : Minimum work in compressor is possible when the value of adiabatic index n is equal to (a) 0.75 (b) 1 (c) 1.27 (d) 1.35 (e) 2.
Last Answer : Answer : b
Description : One watt is equal to (a) 1 Nm/s (b) 1 N/mt (c) 1 Nm/hr (d) 1 kNm/hr (e) 1 kNm/mt.
Description : Change in enthalpy of a system is the heat supplied at (a) constant pressure (b) constant temperature (c) constant volume (d) constant entropy (e) N.T.P. condition.
Description : The term N.T.P. stands for (a) nominal temperature and pressure (b) natural temperature and pressure (c) normal temperature and pressure (d) normal thermodynamic practice (e) normal thermodynamic pressure.
Last Answer : Answer : c
Description : The index of compression n tends to reach ratio of specific heats y when (a) flow is uniform and steady (b) process is isentropic (c) process is isothermal (d) process ... specific heat does not change with temperature (e) process is isentropic and specific heat changes with temperature.
Last Answer : Answer : d
Description : If value of n is infinitely large in a polytropic process pV” = C, then the process is known as constant (a) volume (b) pressure (c) temperature (d) enthalpy (e) entropy
Description : The value of n = 1 in the polytropic process indicates it to be (a) reversible process (b) isothermal process (c) adiabatic process (d) irreversible process (e) free expansion process.
Description : Work done in an adiabatic process between a given pair of end states depends on (a) the end states only (b) particular adiabatic process (c) the value of index n (d) the value of heattransferred (e) mass of the system.
Description : It is the unbalanced force developed in a turbo jet engine that is caused by the difference in the momentum of the low-velocity air entering the engine and the high velocity exhaust gases leaving the engine. a. Fall b. Lift c. Drag d. Thrust
Last Answer : Thrust
Description : __________ is the unit of force. a) Newton b) Pascal c) Hertz d) Joule
Last Answer : Newton
Description : Is the force of gravity on unit volume? a. Specific Weight b. Specific Heat c. Specific Pressure d. Specific Volume
Last Answer : Specific Weight
Description : The Product of the displacement of the body and the component if the force in the direction of the displacement. a. Nonflow Work b. Flow Work c. Work d. None of the above
Last Answer : Work
Description : _______ of a body means the force of the gravity Fg on the body a. Mass b. Weight c. Density d. Volume
Last Answer : Weight
Description : The acceleration of a particular body is directly proportional to the resultant force acting on it & inversely proportional to its mass. a. Pascal's Law b. Joule's Law c. Newton's Law d. None of the above
Last Answer : Newton's Law
Description : A vector quantity whose direction is the same as the direction of the velocity a. Force b. Momentum c. Friction d. Resultant
Last Answer : Momentum
Description : It involves a force deforming a solid body a. non-elastic work b. non-flow work c. flow work d. elastic work
Last Answer : elastic work
Description : Archimedes principle states that a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid b. ... fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.
Last Answer : when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.
Description : The force per unit length across such a line in the surface is called _________. a. force per length b. surface tension c. Pressure d. Density
Last Answer : surface tension
Description : To displace a cubic foot of fresh water, you need _________ force. a. 62.4 lb b. 9.81 lb c. 76 lb d. 760 lb
Last Answer : 62.4 lb
Description : Vapor pressure depends only on _________. a. pressure b. force c. volume d. temperature
Last Answer : temperature
Description : What is defined as the force per unit area? A. Pressure B. Energy C. Work D. Power
Last Answer : Pressure
Description : How many independent properties are required to completely fix the equilibrium state of a pure gaseous compound? a. 4 b. 3 c. 2 d. 1
Last Answer : 2
Description : What horse power is required to isothermally compress 800 ft^3 of Air per minute from 14.7 psia to 120 psia? A. 28 hp B.108 hp C.256 hp D.13900 hp Formula: W= p1V1 ln (p1/p2) Power = dW / dt
Last Answer : 108 hp
Description : _________ is the quantity of heat required to raise the temperature of one pound of water 1 F˚ from 63 ˚F to 64 ˚F. a. one Joule b. one calorie c. one watt d. one BTU
Last Answer : one BTU
Description : How many kilocalories of heat are required to heat 750 g of water from 35˚C to 55˚C. a. 15 b. 1500 c. 1.5 x 10^4 d. 6.3 x 10^4
Last Answer : 15
Description : The coefficient of performance (COP) is the ratio between the: A. Power consumption in watts and heat absorbed per hour B. Heat absorbed per hour and the power consumption in watts C. Work required and the absorbed heat D. Absorbed heat and work required
Last Answer : Absorbed heat and work required