power engineering Questions With Complete Solutions
"Also", "nevertheless", and "consequently" are all examples of
what type of cohesion device? Correct Answers Transition
expressions
(26.0 - 4.0) - ((9.0 x 2.0) / (9.0 x 8.0)) - 9.0 x 9.0 (Round to three
decimal places) Correct Answers -59.250
20 cubic feet is equal to ____ cubic metres (Round to three
decimal places) Correct Answers 0.567
20 litres is equal to ______ imperial gallons (Round to one
decimal places) Correct Answers 4.4
20.2 kg copper at 20 degrees C recieves 210 kJ of heat.
Calculate the final temperature of the metal. (Round to three
decimal places) Correct Answers 46.794 degrees C
25 cm is _____ in (Round to two decimal places) Correct
Answers 9.84
A ______ is a four sided figure with the opposite sides parallel,
but the angles are not right angles Correct Answers rhomboid
A 25 mm diameter rivet is in double shear and is subjected to a
load of 200 kN. If the ultimate strength of the material is 450
MPa, what is the factor of safety ? Correct Answers 2.21
,A belt drive consists of a pulley 40 cm in diameter rotating at
512 rpm. Calculate the rpm of the driver if its diameter is 16 cm.
Correct Answers 1,280 rpm
A block and tackle has 6 pulleys in each of two blocks. If a
downward effort of 260 N is required to raise a load of 300 kg,
calculate the efficiency of the system. Correct Answers 94.3%
A body with a mass of 150 kg is located at a height of 45 m. If it
is allowed to fall freely to the ground, what will be its velocity
upon impact? (Round to three decimal places) Correct Answers
29.714 m/s
A boiler releases 11300 kJ of heat for each kg of fuel burned and
produces dry saturated steam at 12000 kPa from feed water at
250 degrees C. How many kg of steam will be produced for
each kg of fuel burned if the boiler efficiency is 65%? (Round to
three decimal places) Correct Answers 4.592 kg
A cast iron ball is 7 cm in diameter and has a mass of 7.21
grams per cubic cm. The mass of the ball in kg is: (Round to
three decimal places) Correct Answers 1.295
a circle has an area of 175 cm². What is the radius (cm)? (Round
to two decimal places) Correct Answers 7.46 cm
A Correct Answers Symbol for electrical current
A crowbar is 5 m long and its pivot is 30 cm from one end. A
force of 4000 N is applied to the end closest to the pivot. What
effort (N) must be applied to the other end of the crowbar to
, keep it in equilibrium? (Round to three decimal places) Correct
Answers 255.319 N
A cylindrical tank has a diameter of 2 m and is 4 m in height.
Determine the area (m2) of the bottom of the tank. (Round to
four decimal places) Correct Answers 3.1416 m2
A fitting is defined as: Correct Answers A gauge glass
A gear wheel 65 cm in diameter revolving at 225 r/min drives a
wheel 85 cm in diameter. What is the speed of the second gear?
(Round answer to two decimal places) Correct Answers 172.06
r/min
A horizontal lever is 5.5 m long. A vertical load of 400 kN is
supported at one end. The fulcrum is located at a distance of 0.5
m from the load. Calculate the theoretical mechanical advantage.
Correct Answers 10
A hydraulic plunger has a 15 cm diameter and a force of 522 kN
acts on it. What pressure (kPa) is exerted on the plunger?
(Answer is a whole number) Correct Answers 29,539 kPa
A lever is 3 m in length and is pivoted at one end. A load of
8000 N is suspended from the lever at a point 1 m from the
pivot. What force (N) is required at the other end in order to
obtain equilibrium? (Round to three decimal places) Correct
Answers 2,666.667 N
A lever is supported by a fulcrum placed at the mid-point of the
lever. A 44 kg mass is suspended 1 m from the fulcrum. What
"Also", "nevertheless", and "consequently" are all examples of
what type of cohesion device? Correct Answers Transition
expressions
(26.0 - 4.0) - ((9.0 x 2.0) / (9.0 x 8.0)) - 9.0 x 9.0 (Round to three
decimal places) Correct Answers -59.250
20 cubic feet is equal to ____ cubic metres (Round to three
decimal places) Correct Answers 0.567
20 litres is equal to ______ imperial gallons (Round to one
decimal places) Correct Answers 4.4
20.2 kg copper at 20 degrees C recieves 210 kJ of heat.
Calculate the final temperature of the metal. (Round to three
decimal places) Correct Answers 46.794 degrees C
25 cm is _____ in (Round to two decimal places) Correct
Answers 9.84
A ______ is a four sided figure with the opposite sides parallel,
but the angles are not right angles Correct Answers rhomboid
A 25 mm diameter rivet is in double shear and is subjected to a
load of 200 kN. If the ultimate strength of the material is 450
MPa, what is the factor of safety ? Correct Answers 2.21
,A belt drive consists of a pulley 40 cm in diameter rotating at
512 rpm. Calculate the rpm of the driver if its diameter is 16 cm.
Correct Answers 1,280 rpm
A block and tackle has 6 pulleys in each of two blocks. If a
downward effort of 260 N is required to raise a load of 300 kg,
calculate the efficiency of the system. Correct Answers 94.3%
A body with a mass of 150 kg is located at a height of 45 m. If it
is allowed to fall freely to the ground, what will be its velocity
upon impact? (Round to three decimal places) Correct Answers
29.714 m/s
A boiler releases 11300 kJ of heat for each kg of fuel burned and
produces dry saturated steam at 12000 kPa from feed water at
250 degrees C. How many kg of steam will be produced for
each kg of fuel burned if the boiler efficiency is 65%? (Round to
three decimal places) Correct Answers 4.592 kg
A cast iron ball is 7 cm in diameter and has a mass of 7.21
grams per cubic cm. The mass of the ball in kg is: (Round to
three decimal places) Correct Answers 1.295
a circle has an area of 175 cm². What is the radius (cm)? (Round
to two decimal places) Correct Answers 7.46 cm
A Correct Answers Symbol for electrical current
A crowbar is 5 m long and its pivot is 30 cm from one end. A
force of 4000 N is applied to the end closest to the pivot. What
effort (N) must be applied to the other end of the crowbar to
, keep it in equilibrium? (Round to three decimal places) Correct
Answers 255.319 N
A cylindrical tank has a diameter of 2 m and is 4 m in height.
Determine the area (m2) of the bottom of the tank. (Round to
four decimal places) Correct Answers 3.1416 m2
A fitting is defined as: Correct Answers A gauge glass
A gear wheel 65 cm in diameter revolving at 225 r/min drives a
wheel 85 cm in diameter. What is the speed of the second gear?
(Round answer to two decimal places) Correct Answers 172.06
r/min
A horizontal lever is 5.5 m long. A vertical load of 400 kN is
supported at one end. The fulcrum is located at a distance of 0.5
m from the load. Calculate the theoretical mechanical advantage.
Correct Answers 10
A hydraulic plunger has a 15 cm diameter and a force of 522 kN
acts on it. What pressure (kPa) is exerted on the plunger?
(Answer is a whole number) Correct Answers 29,539 kPa
A lever is 3 m in length and is pivoted at one end. A load of
8000 N is suspended from the lever at a point 1 m from the
pivot. What force (N) is required at the other end in order to
obtain equilibrium? (Round to three decimal places) Correct
Answers 2,666.667 N
A lever is supported by a fulcrum placed at the mid-point of the
lever. A 44 kg mass is suspended 1 m from the fulcrum. What
