Building Construction - 1.Wood and Aluminium Set 5

---

Which floor spring is suitable for use on clockwise for aluminium door?

  

    (A) Double action floor spring

    (B) Raising butt hinge

    (C) Right hand floor spring

    (D) Left hand floor spring

Left hand floor spring

---

Which device is used to secure the upper portion in aluminium door?

  

    (A) Shoe

    (B) Sash

    (C) Top centre pivot

    (D) Floor spring

Top centre pivot

---

What is the merit of fibre glass?

  

    (A) High strength

    (B) Low strength

    (C) High elasticity

    (D) Low elasticity

High strength

---

What is the benefit of fibre glass?

  

    (A) Excellent insulator

    (B) Good appearance

    (C) High weight

    (D) High holding power

Excellent insulator

---

What is the use of sliding window wheels?

  

    (A) Smooth operation

    (B) Use close the door one direction

    (C) Use on anticlockwise door

    (D) Use on clockwise door

Smooth operation

---