Answer:
7ft (2.13 m).
Explanation:
From the question above, the following parameters/data are given; the room dimension = 12 ft × 18 ft (∼3.7 m × ∼5.5 m), the floor-to-ceiling height = 9 ft (2.8 m) and the spacing ratio for the luminaire is 1:0.
Note that, we are not given the value or data for the height of the plane, therefore, we will make an assumption that the height of the plane = 2ft.
Hence, the work plane to luminaire distance = (9 - 2)ft = 7ft (2.13 m).
So, the maximum distance that the luminaires can be separated and achieve uniform illuminance is;
= the work plane to luminaire distance × spacing ratio for the luminaire.
= 7ft (2.13 m) × 1 = 7ft (2.13 m).
Thus, the maximum distance that the luminaires can be separated and achieve uniform illuminance is 7ft (2.13 m).
Answer:
D
Explanation:
I would say this awnser because its the only one that makes sence to me
Answer:
C) Wear clothes that are resistant to spontaneous arcing.
Explanation:
A confined area or space is one that has strict restriction against movement of people due to the availability of hazardous substance or material within the confined space. If there is need for anyone to enter the space, it is very important that the person make use of personal protective equipment (PPE).
Personal protective equipment are materials that are capable of inhibiting injury or hazard when used appropriately. Examples are: helmet, respirators, gloves, goggles, ear muffs etc.
Before a technician should enter a confined space, he/ she should use a PPE by wearing clothes that are resistant to spontaneous arcing.
Answer:
The solution code is written in Java.
- Scanner input = new Scanner(System.in);
- System.out.print("Enter operator: ");
- String operator = input.nextLine();
- System.out.print("Enter first integer: ");
- int num1 = input.nextInt();
- System.out.print("Enter second integer: ");
- int num2 = input.nextInt();
-
-
- int result = 0;
-
- switch(operator){
- case "+":
- result = num1 + num2;
- break;
- case "-":
- result = num1 - num2;
- break;
- case "*":
- result = num1 * num2;
- break;
- case "/":
- result = num1 / num2;
- break;
- default:
- System.out.println("Invalid operator");
-
- }
-
- System.out.println(result);
Explanation:
To ask for the user input for two whole numbers and an operator, we can use Java Scanner class object. Since the input operator is a string, we can use nextLine() method to get the operator string (Line 3). We use nextInt() method to get whole number input (Line 5 & 7).
Next we use the switch keyword and pass the operator into the switch structure to determine which case statement should be executed. For example, if the input operator is "*" the statement "<em>result = num1 * num2;</em>
" will run and multiply <em>num1</em> with <em>num2. </em>
