Copy and Edit

Principles of basic mechanics - Outcome 4

Description

Level 2 Electrotechnical 202 Quiz on Principles of basic mechanics - Outcome 4, created by Jamie Parslow-Williams on 02/02/2017.
Jamie Parslow-Williams
Quiz by Jamie Parslow-Williams, updated more than 1 year ago More Less
Vito Martino
Created by Vito Martino about 10 years ago
Jamie Parslow-Williams
Copied by Jamie Parslow-Williams over 7 years ago
142
4
0

Resource summary

Question 1

Question
The work needed to raise a load of 95kg to a height of 30 m is approximately
Answer
  • 28 J
  • 2.79 kJ
  • 28 kJ
  • 285 J

Question 2

Question
The pivot point of a lever is called
Answer
  • centre
  • pulley
  • Load
  • fulcrum

Question 3

Question
Calculate the MASS of the LOAD required to balance the EFFORT applied shown below.
Image:
Slide1.JPG (image/JPG)
Answer
  • 824.6kg
  • 1160.1kg
  • 118.3kg
  • 266.2kg

Question 4

Question
A motor has an input power of 3 kW and is 85 % efficient. What is the output power?
Answer
  • 2.55 kW
  • 3 kW
  • 3.53 kW
  • 2.4 kW

Question 5

Question
If an object has a mass of 50 Kg on earth, in space its mass would be
Answer
  • 100 kg
  • 490 kg
  • 50 kg
  • 41 kg

Question 6

Question
What is the power of a hoist required to lift an object of 20 kg, 20 m in 30 seconds.
Answer
  • 3.3kW
  • 1.3kW
  • 13.3W
  • 130.8W

Question 7

Question
Pliers rely on which principle for their operation
Answer
  • leverage
  • tension
  • torsion
  • friction

Question 8

Question
A motor has an input power of 50kW and an output power of 47kW. What is the efficiency of the motor?
Answer
  • 100 %
  • 86 %
  • 96 %
  • 94 %

Question 9

Question
A motor has an output power of 40kW and an efficiency of 80%. What is the input power of the motor?
Answer
  • 32 kW
  • 50 kW
  • 40 kW
  • 54 kW

Question 10

Question
The power input to a machine is 90 W and the output power is 60 W the efficiency of the machine is
Answer
  • 86 %
  • 66.6 %
  • 75 %
  • 80 %

Question 11

Question
The weight of an object is the
Answer
  • mass of the object divided by 9.81
  • the same as the mass when there is gravity
  • force acting on top of the object due to gravity
  • force acting directly below the object due to gravity

Question 12

Question
A mass of 9.5 Kg exerts a force on earth of
Answer
  • 9.3 N
  • 95 N
  • 9.5 N
  • 93.2 N

Question 13

Question
What is the power of a motor required to lift a load of mass 300kg 40m in 2 minutes.
Answer
  • 981 W
  • 6000 W
  • 98.1 W
  • 100 W

Question 14

Question
Calculate the distance D required to balance the effort and load shown
Image:
Slide2.JPG (image/JPG)
Answer
  • 5.64m
  • 6.65m
  • 4.54m
  • 6.45m

Question 15

Question
A motor has an output power of 40kW and an efficiency of 66.66%. What is the input power of the motor?
Answer
  • 30 kW
  • 60 kW
  • 50 kW
  • 70 kW

Question 16

Question
A 2kW heater is 90% efficient. The input power to the heater is
Answer
  • 5kW
  • 1.88kW
  • 3kW
  • 2.22kW

Question 17

Question
A mass of 30kg would have an weight of
Answer
  • 0.327N
  • 3.05kN
  • 3.05N
  • 294.3N

Question 18

Question
A motor has an efficiency of 73%. If the input power is 32kW, the output power available is
Answer
  • 76.64kW
  • 23.36kW
  • 22.8kW
  • 32kW

Question 19

Question
Calculate the work done when required to raise a load of 1000kg through a vertical distance of 20m.
Answer
  • 19620J
  • 20000J
  • 200000J
  • 196200J

Question 20

Question
A force of 50kN moves an object a distance of 2m. The work done is.
Answer
  • 25kJ
  • 50kJ
  • 100kJ
  • 200kJ

Question 21

Question
From the following diagram identify the Mass
Image:
Slide3.JPG (image/JPG)
Answer
  • 2.5kg
  • 10kg
  • 5kg
  • 30kg

Question 22

Question
From the following diagram what is the arrow pointing to
Image:
Slide4.JPG (image/JPG)
Answer
  • Fulcrum
  • middle point
  • Load
  • Distance

Question 23

Question
What is the relationship between force, mass and acceleration?
Answer
  • f = ma
  • f = m/a
  • f = m - a
  • f = m + a

Question 24

Question
What is the work done when a force of 30N move an object 10m
Answer
  • 200 metres
  • 300 Horse power
  • 300 Watts
  • 300 Joules

Question 25

Question
What is the gravitational pull on earth
Answer

Question 26

Question
The force of gravity on earth is considered to be
Answer

Question 27

Question
A load of 50Kg has a force of 25N applied what is the acceleration of the load
Answer
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Geography Coastal Zones Flashcards
Zakiya Tabassum
GCSE AQA Chemistry - Unit 2
James Jolliffe
B3, C3, P3
George Moores
Research Methods
Joanna Griffith
The Skeletal System - PE GCSE EdExcel
GeorgeHaines
B1.1.1 Diet and Exercise Flash Cards
Tom.Snow
Bay of Pigs Invasion : April 1961
Alina A
GCSE Revision (Plastics detailed) AQA specification
T Andrews
English Language Techniques 2
Adam Arrell
GCSE Computer Science (AQA)
Wolfie Ruth
Study tips/hacks
Sarah Biswas
Browse Library