1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pav-90 [236]
3 years ago
10

What device may be used to ensure that air is flowing through a duct before an electric strip is energized

Engineering
1 answer:
andriy [413]3 years ago
4 0

Answer:

Most commonly used air flow proving interlocks are:

  • differential pressure air flow switch.  Contact changes state based on duct static vs. atmosphere outside the duct or dp across a fan inlet to outlet
  • CT relay.  Current transformer relay that changes state from 0 to 1 open/closed when amp draw on a blower motor exceeds the trip setpoint.

Explanation:

You might be interested in
All brake lights are dimmer than normal. Technician A says that bad bulbs could be the cause. Technician B says that high resist
yarga [219]

Answer:

All Brake lights are dimmer than normal because high resistance in the brake switch could be the cause according to Technician B.

Explanation:

According to Technician A

When the bulb is faulty then no current will flow through bulb and it will be open circuit.So no light will produce in bulb .

According to Technician B

When a high resistance inserted in series  circuit the voltage across each resistance is reduced and this cause the light glow dimly.

Formula of resistance in series circuit

Rt=r1+r2+r3......

5 0
3 years ago
It is desired to produce and aligned carbon fiber-epoxy matrix composite having a longitudinal tensile strength of 800 MPa. Calc
Aloiza [94]

Answer:

A certain vehicle loses 3.5% of its value each year. If the vehicle has an initial value of $11,168, construct a model that represents the value of the vehicle after a certain number of years. Use your model to compute the value of the vehicle at the end of 6 years.

Explanation:

5 0
3 years ago
A reversible process and an irreversible process both have the same________ between the same two states. a. Internal energy b. W
Vlad1618 [11]

Answer:

a) Internal energy

Explanation:

As we know that internal energy is a point function so it did not depends on the path ,it depends  at the initial and final states of process.All point function property did not depends on the path.Internal energy is a exact function.

Work and heat is a path function so these depend on the path.They have different values for different path between two states.Work and heat are in exact function.

We know that in ir-reversible process entropy will increase so entropy will be different for reversible and ir-reversible processes.

5 0
3 years ago
What is a Flame Front Generator?
Inessa [10]

Answer and Explanation:

Flame Front Generator: It is a ignition system which is very useful in flaring system .In this system the air and gases are mixed together and make a combustible air gas mixture. There is a flame front region where the combustion reaction takes place , it is the region where gases as like hydrogen and air mixed with each other and form combustible gases.

7 0
3 years ago
Which of the following is the last step in creating a budget?
Greeley [361]

Answer:

<em>D. Determine saving or debt</em>

Explanation:

7 0
3 years ago
Other questions:
  • What is the heights part of Maine?
    5·1 answer
  • Is it possible to interface an IC with a different technology such as TTL to HCS12 ports? What are the conditions in terms of el
    10·1 answer
  • What is the maximum volume flow rate, in m^3/hr, of water at 15.6°C a 10-cm diameter pipe can carry such that the flow will be l
    9·1 answer
  • Calculate pressure at the mid-plane of an annular cylinder of iron powder pressed using double-action press. The punch pressure
    12·1 answer
  • Carbon dioxide (CO2) expands isothermally at steady state with no irreversibilities through a turbine from 10 bar, 500 K to 2 ba
    15·1 answer
  • If y varies inversely as x, and y =23 when x=8, find y when x=4
    14·1 answer
  • Provide two programming examples in which multithreading provides better performance than a single-threaded solution. Provide on
    11·1 answer
  • Is santa real or nah is santa real or nah
    7·2 answers
  • Which pipe for water is best for construction?
    6·1 answer
  • assuming complementary inputs are available, the minimum number of transistors needed to realize a two input xor gate is:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!