Deck 1: Ventilation, Wiring, and Belt Drives: Understanding the Basics

Question 1

While calculating the handling capacity of lift, the weight of a person is taken as 65kg.

A)True
B)False
C)none
D)all

Answer 1

False

Question 2

Which of the following is not a benchmark for environmental performance assessment?

A)LEED
B)BEAM
C)GBTools
D)Gini coefficient

Answer 2

Gini coefficient

Question 3

Which of the following parameters does not affect the lift waiting time?

A)Rated load
B)Number of stops
C)Door closing time
D)Handling capacity

Answer 3

Handling capacity

Question 4

The term _________ is used to mean the free passage of clean air in a structure.

A)Circulation
B)Ventilation
C)Dissipation
D)Condensation

Question 5

For comfortable working, the ___________ content should be limited to about 0.6% by volume.

A)Oxygen
B)Hydrogen
C)Carbon monoxide
D)Carbon dioxide

Question 6

Where people are working, there has to be ______________ to cause proper ventilation of the premises.

A)Air change
B)Humidity
C)Temperature
D)Moisture

Question 7

The rate of amount of water vapour present to the amount it would have contained, had it been saturated, is known as the ___________

A)Relative humidity
B)Saturated air
C)Dry bulb temperature
D)Wet bulb temperature

Question 8

The_______________ plays an important role in the comfort of persons affected by ventilation system.

A)Carbon monoxide
B)Purity of air
C)Volume of room
D)Health of occupant

Question 9

It is quite evident that the incoming air for ventilation should be ________ in summer and ________ in winter before it enters the room.

A)cool, warm
B)warm, cool
C)humid, dry
D)dry, humid

Question 10

In ______________ system, the use is made of doors, windows, ventilators and skylights to make the room properly ventilated.

A)Artificial ventilation
B)Air conditioning
C)Natural ventilation
D)Mechanical ventilation

Question 11

Exhaust system, supply system, air conditioning, etc. comes under ________ type of ventilation system.

A)Natural
B)Mechanical
C)Man made
D)Doors

Question 12

The term __________ is used to indicate the science of controlling air with respect to humidity, temperature, movement of air, bacteria content, etc.

A)Air conditioning
B)Circulation
C)Condensation
D)Conditioning

Question 13

_____________ is the process by which the required amount of moisture is added in the air.

A)Dehumidification
B)Humidification
C)Absorption
D)Condensation

Question 14

the maximum rate of air change is ______

A)30 per min
B)30 per hour
C)60 per min
D)60 per hour

Question 15

Viscous type filters are made of screens of spilt wire and coated with non-drying viscous oil in order to catch and remove the dust particles from the incoming air.

A)True
B)False
C)none
D)all

Question 16

The type of wiring depends on ............................

A)Location and consumers budget
B)Durability and cost
C)Safety and appearance
D)All of the above

Question 17

The types of internal wiring used in domestic installations are ..........................

A)Cleat wiring
B)CTS / RTS wiring
C)Metal / PVC conduit wiring
D)All the above

Question 18

.................. type of wiring uses insulated cables supported in porcelain cleats

A)Cleat
B)CTS/RTS
C)Metal
D)PVC conduit or PVC capping

Question 19

In cleat wiring. cleats shall be fixed at distances not greater than.................. cm apart and at regular intervals.

A)50
B)60
C)65
D)70

Question 20

Which is the most type of wirings used in domestic applications?

A)Conduit wiring
B)Cleat wiring
C)Batten wiring
D)None of these

Question 21

What is the property of insulating materials?

A)Prevents the unwanted flow of current
B)Allows the unwanted flow of current
C)Increases the unwanted flow of current
D)Decreases the unwanted flow of current

Question 22

A shorter center distance is always preferred in belt drives.

A)Yes due to stability
B)No due to stability
C)Yes due to instability
D)No due to instability